Ascorbic acid, H2C6H606, is a polyprotic acid containing two ionizable hydrogens, kal is 8.0x10-5 and ka2 isl.6x10-12. Calculate the pH and conc. [C6H606-2] of a 2.0*10-3 M solution of ascorbic acid.
Answers
The pH of a 2.0x10⁻³ M solution of ascorbic acid (H₂C₆H₆O₆) is approximately 2.16, and the concentration of [C₆H₆O₆⁻²] is approximately 1.6x10⁻¹² M.
To calculate the pH, first determine the concentration of H⁺ ions using the Ka₁ value. Given the initial concentration of ascorbic acid (H₂C₆H₆O₆), use the expression Ka₁ = [H⁺][HC₆H₆O₆⁻]/[H₂C₆H₆O₆].
Make the assumption that the change in concentration of H₂C₆H₆O₆ is equal to the concentration of H⁺ ions formed. After solving for [H⁺], use the formula pH = -log[H⁺] to find the pH.
To find [C₆H₆O₆⁻²], use the Ka₂ value and the calculated concentration of HC₆H₆O₆⁻ ions. The expression is Ka₂ = [H⁺][C₆H₆O₆⁻²]/[HC₆H₆O₆⁻]. Since the Ka₂ value is small, assume that the change in HC₆H₆O₆⁻ concentration is negligible. Solve for [C₆H₆O₆⁻²] using the given Ka₂ value and the calculated HC₆H₆O₆⁻ concentration.
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Related Questions
A 4.80-gram piece of magnesium displaces 2.76 mL of water when it is placed in a graduated cylinder. What is the density of magnesium?
Answers
Answer:
1.73913043g/mL
Explanation:
Density is how much a substance would weigh per 1 mL of the substance. So it is measured by dividing weight (g) by volume (mL).
4.80g/2.76mL = 1.73913043g/mL
if you dissolve two aspirin tablets in a 300 ml glass of water, what is the ph of the solution and the percent dissociation?
Answers
The pH of the solution after mixing2 tablets of Aspirin into 300mL of water is found to be 2.5.
This type of acid/base reaction can be represented by the following straightforward equation, where HA = ASA.
A- + H3O+ from HA + H2O
Now that we know the starting HA concentration, we can calculate it. We have 5 tablets and each tablet contains 325 milligrammes of ASA, so:
5 tablets at 325 mg ASA each equals 1625 mg ASA.
By calculating the number of moles of ASA present and dividing it by the entire volume of the solution, which is 237 mL, we can turn this into the starting concentration.
9.02 moles of ASA at 1625 mg/180.157 g/mol.
9.02 moles divided by 300 mL equals 0.0381 mol/L or 0.0381 moles/mL.
With the initial concentration, we can now keep track of concentration variations and calculate the equilibrium concentrations.
The Ka value, which represents ASA's acid dissociation constant, was provided to us. The following is the formula we use to calculate this value:
Ka is equal to [A-][H3O+]/[HA] = 3.3 x 10-4.
3.3 x 10⁻⁴ is equal to Ka = [x][x]/[0.0381-x].
Since a number of 10⁻⁴ is so little, we may overlook the initial concentration change for the time being. Thus, our new, simpler equation is:
x = 0.0035 = [A-] = [H3O+] and x = 0.0038 = 3.3 x 10⁻⁴ and 1.3 x 10⁻⁵ respectively.
The concentration of hydronium ions, which is necessary to determine a solution's pH, has now been solved for. We calculate pH using the equation pH = -log[H3O+]:
pH = -log[0.0035]
pH = 2.5
So, the pH value is 2.5.
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recall that your chambers had a set amount of co2 entering each chamber and then you measured how much co2 was exiting the chamber. suppose you conduct your experiment and discovered one of your chambers had a lower in-flow of air relative to the other chambers. what would this do to your data in that chamber?
Answers
If the chambers had a lower in-flow of air relative to the other chambers, then it would bias the results toward less photosynthesis in the chamber with a lower in-flow of air. Thus, c is the correct option.
A result of lower in-flow of air would result in a decrease in the availability of carbon dioxide, which is an important component for photosynthesis.
Photosynthesis is the process used by plants, algae and some other bacteria to convert sunlight into energy. The process chemically converts carbon dioxide and water into food (sugars) and oxygen. Chlorophyll is the pigment which gives plants their green colour and is essential for the chemical reactions inside the plant.
If the in-flow of air in a chamber is reduced, the concentration of carbon dioxide which is present in the plant would also decrease. Subsequently, the plant would take up less carbon dioxide and release less oxygen as the rate of photosynthesis would decrease.
Therefore, the chamber has lower rates of photosynthesis and higher rates of respiration, as the plant would still need to perform cellular respiration to produce energy, even after the reduction in photosynthesis.
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The complete question is:
Recall that your chambers had a set amount of co2 entering each chamber and then you measured how much co2 was exiting the chamber. suppose you conduct your experiment and discovered one of your chambers had a lower in-flow of air relative to the other chambers. what would this do to your data in that chamber?
a.) It would bias the results towards more photosynthesis
b.) It would not change the results
c.) It would bias the results towards less photosynthesis
d.) It would bias the results toward more respiration
two metals, A and B are placed in direct contact in an insulated container. Metal a has a mass of 50g and an initial temperature of 150C, and metal B had a mass of 50g and an initial temperature of 50c. If the equilibrium of the two metals is 75c, which metal has a higher specific heat?
Answers
Answer:
Explanation:
for this u may refer YT for better explanation.
what does the sides of a container do with a gas
Answers
Answer:
If a gas is heated up, its particles move around more quickly. They hit the walls of their container harder and more often.
Explanation:
10. Aqua means "water" or "a light blue color." Marine refers to the sea. Use this information
to determine what the gemstone aquamarine might look like.
Determine what the gemstone aquamarine might look like?
Answers
Answer:
\( \huge\blue{ \mid{ \underline{ \overline{ \tt ♡ AQUAMARINE ♡ }} \mid}}\)
=> The colour of this stone is usually a pale greenish blue, owing to the presence of iron impurities. Stones that are treated with heat look more blue than green. On the Mohs scale of hardness, aquamarine ranges between 7.5 and 8 making it a relatively hard gemstone.
=> The best way to identify a real aquamarine stone is by looking at its colour. In its natural form, they have a pale blue colour, which is similar to seawater. They may have a slight green or yellow tint as well. Naturally occurring gems have excellent clarity and transparency.
=> The hardness of the stone is another feature you can use to identify the stone. Aquamarine stones are hard and they don’t get scratches easily. However, they can easily scratch glass and other such surfaces. So, if you find visible scratches on the stone, rethink your decision to buy it.
=> Most faceted aquamarine stones are clean to the eye and clear of any inclusions. However, translucent and opaque aquamarine is also available. These are usually fashioned into cabochons or beads. In some cases, inclusions may appear as parallel tubes. Such stones can be crafted to show a cat’s eye. Stones with cat’s eye and star effect are rare and highly priced.
Match up the characteristics below with the type of molecular bond they describe. Bonds found in Halite (between Na+ and Cl-) Bonds found between Si and O in the Si-O tetrahedron Bonds inside the water molecule (between the H and O ) Bonds that exist between two water molecules Strongest bond type Weakest bond type Bonds that are used by water to dissolve sal
Answers
The characteristics and the type of molecular bond they describe:
1. Bonds found in Halite (between Na⁺ and Cl⁻): Ionic bond
2. Bonds found between Si and O in the Si-O tetrahedron: Covalent bond
3. Bonds inside the water molecule (between the H and O): Covalent bond
4. Bonds that exist between two water molecules: Hydrogen bond
5. Strongest bond type: Covalent bond
6. Weakest bond type: Van der Waals bond
7. Bonds that are used by water to dissolve salt: Ionic bond
The ionic bond is a type of molecular bond found in halite (between Na⁺ and Cl⁻). The Si-O tetrahedron is held together by a covalent bond. The bond inside the water molecule (between the H and O) is also a covalent bond. The hydrogen bond is the type of bond that exists between two water molecules. The covalent bond is the strongest bond type, while the van der Waals bond is the weakest bond type. Water uses the ionic bond to dissolve the salt.
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What is the molarity of 2 moles of a compound dissolved in 4 L of water?
A. 2 M
B. 0.5 M
C. 4M
D. 1 M
Answers
Answer:
\(\boxed {\boxed {\sf B. \ 0.5 \ M}}\)
Explanation:
Molarity is a measure of concentration in moles per liter. The formula for calculating molarity is:
\(molarity= \frac{moles \ of \ solute}{ liters \ of \ solution}\)
There are 2 moles of a compound or the solute. There are 4 liters of water or the solution.
moles of solute= 2 mol liters of solution = 4 LSubstitute the values into the formula.
\(molarity = \frac{ 2 \ mol}{ 4 \ L}\)
Divide.
\(molarity= 0.5 \ mol /L\)
1 mole per liter is equal to 1 Molar, so the solution's molarity of 0.5 mol/L is equal to 0.5 M.
\(molarity = 0.5 \ M\)
The molarity of the solution is 0.5 Molar and choice B is correct.
the mean breath h2 response to the lactase-treated milk was significantly lower [...] than the mean response to regular milk.
Answers
The mean breath H2 response to lactase-treated milk was found to be significantly lower compared to the mean response to regular milk. This suggests that lactase treatment reduces the production of hydrogen gas (H2) during the digestion of lactose in milk. The lower H2 response indicates improved lactose digestion and absorption, indicating that lactase treatment may be effective in alleviating symptoms associated with lactose intolerance.
Lactase-treated milk refers to milk that has been treated with the enzyme lactase, which helps break down lactose, the primary sugar found in milk. Lactose intolerance is a condition in which individuals have difficulty digesting lactose due to a deficiency of the enzyme lactase. When lactose is not properly digested, it can ferment in the gut, leading to the production of gases such as hydrogen (H2). Measurement of breath H2 levels provides a non-invasive method to assess lactose digestion and absorption.
The study comparing the mean breath H2 response to lactase-treated milk and regular milk aimed to evaluate the effectiveness of lactase treatment in reducing symptoms associated with lactose intolerance. The significantly lower mean breath H2 response to lactase-treated milk suggests that the lactase treatment successfully enhances lactose digestion and reduces the fermentation process. As a result, less hydrogen gas is produced during the digestion of lactose, leading to fewer symptoms such as bloating, gas, and abdominal discomfort commonly experienced by individuals with lactose intolerance.
Overall, these findings highlight the potential benefits of lactase-treated milk for individuals with lactose intolerance. By providing the necessary enzyme to break down lactose, lactase treatment helps improve lactose digestion and absorption, reducing the likelihood of uncomfortable symptoms. Incorporating lactase-treated milk into the diet may offer an effective strategy for individuals with lactose intolerance to enjoy dairy products without experiencing digestive issues. However, it is important to consult with a healthcare professional or a registered dietitian before making any significant dietary changes.
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what is a polysaccharide? select the correct answer below: a polymer of monosaccharides linked by glycosidic bonds is known as a polysaccharide. a polysaccharide is formed by the hydrolyzation of glycosidic bonds with acid. polysaccharides are simple sugars, the most common of which is glucose. a polysaccharide is the sugar formed when two monosaccharides (simple sugars) are joined by glycosidic linkage.
Answers
A polymer of monosaccharides linked by glycosidic bonds is known as a polysaccharide.
What is a polysaccharide?We know that there are different kinds of sugars that we have. This would depend on the way that the atoms of the sugar are joined together. The various kinds of sugars are found to be;
Monosaccharides: These are composed of simple sugar units
Disaccharides: These are composed of two sugar units that are joined together.
Polysaccharides : These are composed of more than two sugar units that are joined together.
Now we have to note that in talking about poly saccharides the idea that they are sugars that are composed of many units have to be at the back of our minds in the discussion. The many units have to be joined by a kind of bond that is called the glycosidic bonds
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if matter cant be created nor be destroyed so how was the universe was formed
Answers
Answer: By the very laws of the universe, matter cannot be created or destroyed, the Big Bang cannot have happened by its own power. There was a creator involved.
CH3COOH CH3COO– + H+
You start with 0.05 moles of acetic acid in 500 mL of water. At equilibrium, the pH of the solution is 2.873. What is the equilibrium constant of this reaction? Hint: You will need to calculate an antilog using a scientific calculator.
Answers
(a)
pH = 4.77
; (b)
[
H
3
O
+
]
=
1.00
×
10
-4
l
mol/dm
3
; (c)
[
A
-
]
=
0.16 mol⋅dm
-3
Explanation:
(a) pH of aspirin solution
Let's write the chemical equation as
m
m
m
m
m
m
m
m
l
HA
m
+
m
H
2
O
⇌
H
3
O
+
m
+
m
l
A
-
I/mol⋅dm
-3
:
m
m
0.05
m
m
m
m
m
m
m
m
l
0
m
m
m
m
m
l
l
0
C/mol⋅dm
-3
:
m
m
l
-
x
m
m
m
m
m
m
m
m
+
x
m
l
m
m
m
l
+
x
E/mol⋅dm
-3
:
m
0.05 -
l
x
m
m
m
m
m
m
m
l
x
m
m
x
m
m
m
x
K
a
=
[
H
3
O
+
]
[
A
-
]
[
HA
]
=
x
2
0.05 -
l
x
=
3.27
×
10
-4
Check for negligibility
0.05
3.27
×
10
-4
=
153
<
400
∴
x
is not less than 5 % of the initial concentration of
[
HA
]
.
We cannot ignore it in comparison with 0.05, so we must solve a quadratic.
Then
x
2
0.05
−
x
=
3.27
×
10
-4
x
2
=
3.27
×
10
-4
(
0.05
−
x
)
=
1.635
×
10
-5
−
3.27
×
10
-4
x
x
2
+
3.27
×
10
-4
x
−
1.635
×
10
-5
=
0
x
=
1.68
×
10
-5
[
H
3
O
+
]
=
x
l
mol/L
=
1.68
×
10
-5
l
mol/L
pH
=
-log
[
H
3
O
+
]
=
-log
(
1.68
×
10
-5
)
=
4.77
(b)
[
H
3
O
+
]
at pH 4
[
H
3
O
+
]
=
10
-pH
l
mol/L
=
1.00
×
10
-4
l
mol/L
(c) Concentration of
A
-
in the buffer
We can now use the Henderson-Hasselbalch equation to calculate the
[
A
-
]
.
pH
=
p
K
a
+
log
(
[
A
-
]
[
HA
]
)
4.00
=
−
log
(
3.27
×
10
-4
)
+
log
(
[
A
-
]
0.05
)
=
3.49
+
log
(
[
A
-
]
0.05
)
log
(
[
A
-
]
0.05
)
=
4.00 - 3.49
=
0.51
[
A
-
]
0.05
=
10
0.51
=
3.24
[
A
-
]
=
0.05
×
3.24
=
0.16
The concentration of
A
-
in the buffer is 0.16 mol/L.
hope this helps :)
The equilibrium constant of this reaction is 1.80×10-5
Given data,
pH of solution = 2.873
Number of moles of acetic acid (m) = 0.05 moles
Volume of water (V) = 500 mL = 0.5L
So, concentration (C) = m/V in lit = 0.05/0.5 = 0.1 M
Equilibrium constant ( K ) = \([CH_{3} COO-]\)×\([H+_{} ]\)/\([CH_{3} COOH]\)
Since, acetic acid is weak acid,
So, Equilibrium constant ( K ) = \([H+]^{2}\)/\([CH_{3} COOH]\) ....(i)
As the pH = 2.873, the \([H+_{} ]\) is antilog of -2.873 or 1.34×10-3 M.
Putting the value of concentration of \(H+_{}\) and \(acetic_{} acid\) in equation (i).
Equilibrium constant ( K ) = 1.80×10-5
What is weak acid ?The acid which is partially dissociates into ions on dissolving in aqueous solution is called weak acid.
Example: \(acetic_{} acid\).
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3. Which one of the following substances would be the most soluble inCCl4 ?
A) CH3CH2OH B) H2O C) NH3 D) C10H22 E) NaCl
Answers
The most soluble substance in CCl4 would be a nonpolar substance. This is because CCl4 is a nonpolar solvent and thus can only dissolve other nonpolar substances. The substance that is the most nonpolar out of the choices given is C10H22. This is because it is a hydrocarbon and contains only carbon and hydrogen atoms, which have similar electronegativities and therefore form nonpolar covalent bonds.
In contrast, the other substances listed are polar or ionic and thus would not dissolve as well in a nonpolar solvent like CCl4. For example, CH3CH2OH is polar because it contains a hydroxyl group (-OH), which gives it a partial positive and negative charge. H2O is also polar for the same reason. NH3 is polar because it has a lone pair of electrons on the nitrogen atom, making it more negative on one end and positive on the other. NaCl is ionic and would not dissolve in a nonpolar solvent at all.
Overall, the correct answer is D) C10H22, which is the most nonpolar substance out of the choices given and therefore the most soluble in CCl4.
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An atom has 25 protons, 30 neutrons, and 25 electrons. What is the charge of the atom's nucleus?
Answers
A single proton has the charge of +1.
A neutron is neutral and has a charge of 0
A single electron has the charge of -1
Since the nucleus contains both protons and neutrons, with neutrons have charge of 0 and protons with +1, the total charge of the nucleus would be 25 * 1 which is +25.
Answer:
25+
Explanation:
25+ = the number of protons in the nucleus
Feel the heat Part 2: Why does the temperature change when a powder is dissolved in water
Answers
When a powder is dissolved in water, it changes the temperature because the chemical reaction that occurs between the particles of the solute and the solvent when they mix. The heat energy that is released or absorbed when two particles come together is known as enthalpy of solution.
In order to understand the temperature change in detail, we need to look at the two types of enthalpies that are involved when a powder is dissolved in water.
The first type is called the lattice enthalpy which is the energy that is needed to break the bonds between the particles in the solid. The second type is the hydration enthalpy which is the energy that is released when the particles of the solute are surrounded by the solvent particles.
When a powder is dissolved in water, the lattice enthalpy is broken and the particles of the solute are dispersed throughout the solvent. This requires energy, so the temperature of the solution decreases. Then the solvent particles surround the particles of the solute and release energy, so the temperature of the solution increases. The overall temperature change depends on the difference between the lattice enthalpy and the hydration enthalpy.
When a powder is dissolved in water, it changes the temperature because of the chemical reaction that occurs between the particles of the solute and the solvent when they mix. When two particles come together, the heat energy that is released or absorbed is known as enthalpy of solution. There are two types of enthalpies involved when a powder is dissolved in water.
The first type is lattice enthalpy, which is the energy that is needed to break the bonds between the particles in the solid. The second type is hydration enthalpy, which is the energy that is released when the particles of the solute are surrounded by the solvent particles.
When a powder is dissolved in water, the lattice enthalpy is broken, and the particles of the solute are dispersed throughout the solvent. This requires energy, so the temperature of the solution decreases. Then, the solvent particles surround the particles of the solute and release energy, so the temperature of the solution increases. The overall temperature change depends on the difference between the lattice enthalpy and the hydration enthalpy.
If the lattice enthalpy is higher than the hydration enthalpy, the solution will be cold because more energy is required to break the bonds in the solid than is released when the particles are surrounded by solvent particles. Conversely, if the hydration enthalpy is higher than the lattice enthalpy, the solution will be hot because more energy is released when the particles are surrounded by solvent particles than is required to break the bonds in the solid.
When a powder is dissolved in water, the temperature of the solution changes because of the chemical reaction between the particles of the solute and the solvent when they mix. The overall temperature change depends on the difference between the lattice enthalpy and the hydration enthalpy. If the lattice enthalpy is higher than the hydration enthalpy, the solution will be cold, and if the hydration enthalpy is higher than the lattice enthalpy, the solution will be hot.
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an excitatory postsynaptic potential (epsp) occurs in a membrane made more permeable to potassium
Answers
Answer:
sodium ions an impulse arriving in presynaptic neuron causses release of neur
How many grams of nickel 58.69 (No,58.69 g/mol) are in 1.57 moles of nickel
Answers
Answer:
92.1
Explanation:
1.57 * 58.69
Calculate the (base) hydrolysis constant for the hypochlorite ion, OCl−.
a. 3.5 × 10−8
b. 1.8 × 10−5
c. 5.6 × 10−10
d. 2.9 × 10−7
e. 3.5 × 10−6
Answers
To calculate the hydrolysis constant for the hypochlorite ion, we need to write the chemical equation for the reaction that occurs when the ion reacts with water. The closest answer choice is d) 2.9 × 10−7, which is the correct answer to this question.
The equation is as follows: OCl− + H2O ⇌ HOCl + OH−
In this equation, HOCl is the conjugate acid of the hypochlorite ion, and OH− is the hydroxide ion. The hydrolysis constant, also known as the base dissociation constant, is given by the expression: Kb = [HOCl][OH−] / [OCl−]
where [ ] denotes the concentration of each species in moles per liter. The value of Kb for hypochlorite ion can be calculated using the known values of the equilibrium concentrations of the reactants and products. However, these concentrations are not given in the question. Instead, we can use the relationship between Kb and Ka (the acid dissociation constant) for the conjugate acid HOCl:
Kb = Kw / Ka
where Kw is the ion product constant for water (1.0 × 10−14 at 25°C).
The value of Ka for HOCl is 3.0 × 10−8 at 25°C. Therefore, the value of Kb for OCl− is:
Kb = Kw / Ka = 1.0 × 10−14 / 3.0 × 10−8 = 3.3 × 10−7
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In common speech, some people may use the terms hypothesis and theory interchangeably. In science, however, the terms have different meanings. What do you think is an important difference between a hypothesis and a theory?
Answers
Answer: In science, a hypothesis is a possible explanation for an observation, while a theory is an explanation that is supported by a large body of evidence.
Explanation: exact answer
recalling that time is inversely proportional to rate, iif a reaction with an initial concentration of 0.100 m of reactant a took 50 s, and a second reaction in which 0.200 m of a took 25 s, what would be the order on a?
Answers
We are aware that a reaction's time need is inversely correlated with its rate, or that as the rate of the reaction rises, the reaction's time requirement falls.
We can express the rate law for a reaction involving products of form A as follows:
Rate = k[A]^n
where k is the rate constant and n is the order of the reaction with respect to A.
Given that the initial concentration of reactant A in the first reaction is 0.100 M and the time required for the reaction is 50 s, we can write:
50 s = 1 / (k * (0.100 M)^n)
Similarly, for the second reaction with an initial concentration of 0.200 M and a time of 25 s, we can write:
25 s = 1 / (k * (0.200 M)^n)
Dividing the two equations, we get:
50 s / 25 s = (0.100 M / 0.200 M)^n
Simplifying, we get:
0.5 = 0.5^n
Taking the logarithm of both sides, we get:
log(0.5) = n * log(0.5)
Solving for n, we get:
n = 1
Therefore, the order of the reaction with respect to A is 1.
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If 115grams of a substance reacts with 84grams of another substance, what will be the mass of the products after the reaction?
Answers
what is a chemical equation
Answers
Answer:
"Symbolic representation of a chemical reaction in the form of symbols and formulae"
Answer:
A chemical equation is the symbolic representation of a chemical reaction in the form of symbols and formulas.
Explanation:
Example- Zinc metal reacts with dilute sulphuric acid to form zinc sulphate and hydrogen gas. This equation is written as: Zn+H2SO4→ZnSO4+H2.
in plants, under what solution conditions are calvin cycle and gluconeogenesis enzymes most active? low ph, low [mg2 ] low ph, high [mg2 ] high ph, low [mg2 ] high ph, high [mg2 ]
Answers
In plants, the Calvin cycle and gluconeogenesis enzymes are most active under solution conditions with high pH and high [Mg2+]. So the correct option is d) high pH, high [Mg2+].
The optimal pH for the Calvin cycle enzymes in plants is generally slightly alkaline, ranging from pH 7.5 to 8.5, which is typically found in the stroma of chloroplasts. . Magnesium ions are required for the binding of substrates and stabilization of enzyme-substrate complexes in the Calvin cycle. Therefore, high pH and high concentrations of magnesium ions (Mg2+) would be favorable for the activity of Calvin cycle enzymes in plants. It's worth mentioning that the term "gluconeogenesis" is not typically used in the context of plants, as plants primarily undergo photosynthesis to synthesize glucose from carbon dioxide and water,
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What is the optimum pH of formic acid-formate buffer? (The pK, of formic acid is 3.75.)
1.875
3.75
5.625
7.50
Answers
The optimum pH of formic acid - formate buffer is 3.75
What is Buffer ?
A substance or a solution which resists any changes in pH, when acid or alkali is added to it.
pH = pKa + log[base] / [acid]
Considering equimolar concentration of acid and base
pH = 3.75 + log(x)/(x)
pH = 3.75 + log (1)
pH = 3.75 + 0
pH = 3.75
Hence,
The optimum pH of formic acid - formate buffer is 3.75
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Which is a liquid that is used to absorb and release thermal energy?
coolant
lubricant
grease
fuel
Answers
Answer:
grese
Explanation:
Any liquid could absorb and release thermal energy. However, a refrigerant or a coolant absorbs heat and releases it to any area faster than any ordinary liquid such as water. So to complete the sentence: A refrigerant/cooler is a liquid that absorbs and releases thermal energy
Answer:
Coolant
Explanation:
Every liquid does that but
Coolant does it the fastest
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What is Chlorofluorocarbons?
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Answer:
Chlorofluorocarbons and hydrochlorofluorocarbons are fully or partly halogenated paraffin hydrocarbons that contain only carbon, hydrogen, chlorine, and fluorine, produced as volatile derivative of methane, ethane, and propane. They are also commonly known by the DuPont brand name Freon.
Explanation:
Answer:
Explanation: Chlorofluorocarbons and hydrochlorofluorocarbons are fully or partly halogenated paraffin hydrocarbons that contain only carbon, hydrogen, chlorine, and fluorine, produced as volatile derivative of methane, ethane, and propane. They are also commonly known by the DuPont brand name Freon
hope that helps.↑Determine the number of moles P4(s) in a 2.0 gram sample.
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Answer:
0.016 moles
Explanation: Because you are doing P4, you take the molar mass/atomic mass of phosphorous which is 30,97(rounded up) and multiply it by 4 since that's the subscript. Then you take 2.0 grams and divide it by the molar mass, which is 123.88, and that gives you 0.016 moles (rounded up)
As you walk into class, you notice that everyone is sitting on the floor. You consequently sit on the floor, too. In this situation, the fact that you choose to act in a way that matches the people around you is an example of:
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The situation described in the question is an example of conformity. Conformity is the act of matching one's behavior, attitudes, and beliefs to those of a group. In this case, the individual noticed that everyone in the class was sitting on the floor and consequently chose to sit on the floor as well, conforming to the behavior of the group.
Conformity is a common human behavior and is often driven by the desire to fit in or belong to a group. This behavior can be seen in many situations, from fashion trends to political beliefs. While conformity can have positive effects on social cohesion and group dynamics, it can also lead to groupthink and the suppression of individuality.
Understanding the role of conformity in social behavior is important for individuals to make informed decisions and to be aware of the potential for group influence. It is important to balance the desire to conform with the need to express one's unique perspective and ideas. In conclusion, the situation described in the question is an example of conformity, a behavior that can have both positive and negative effects on individuals and groups.
Learn more about political beliefs here-
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what is the difference b/w combustion and synthesis reaction ?explain with example
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Answer:
A synthesis reaction occurs when two or more reactants combine to form a single product in a double replacement reaction two compounds exchange elements. Combustion reaction occurs when a substance reacts quickly with oxygen combustion is commonly called burning. Example'- for synthesis reaction is iron+ oxygen —≥ water . Example:- for combustion reaction is often gaseous products.
may be this was ur answer I hope it might help u