Answers
Answer:
[H+]=1.43*10^-13
pH=12.84
Explanation:
Take the -log of the [OH-] to get the pOH:
pOH= -log(6.98*10^-2)=1.15
pH=14-pOH
pH=14-1.15
pH=12.843
[H+]=10^(-pH)
[H+]=10^(-12.843)
[H+]-1.43*10^-13
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Related Questions
The irreversible isomerization A
B was carried out in a batch reactor and the following concentration time data were obtained:
Time vs Concentration data in a Batch reactor
t 0 3 5 8 10 12 15 7.5
mol/h 4 2.89 2.25 1.45 1.0 0.65 0.25 0.07
Determine the reaction order,
, and the specific reaction a rate constant, k, using any method of your choice.
Answers
The reaction order and specific reaction rate constant can be determined by performing the kinetics experiment on irreversible polymerization A. Kinetic experiments can be used to investigate the rate and mechanism of chemical reactions. Chemical kinetics is the study of chemical reactions' speed and pathway.
The term "kinetics" refers to the study of reaction rates, which are determined by measuring the concentration of reactants and products as a function of time.Kinetics experiments can be used to determine the reaction rate and order of reaction. A chemical reaction's rate is defined as the change in the concentration of a reactant or product per unit time. The order of a reaction refers to the number of molecules that must react to produce a product. The order of reaction can be determined by measuring the initial rate of the reaction as a function of concentration.Methods for determining the reaction rate order include the initial rate method, the half-life method, and the integrated rate method. The initial rate method determines the reaction order by measuring the initial rate of the reaction at different reactant concentrations. The half-life method determines the reaction order by measuring the time it takes for the reactant concentration to decrease by half.The integrated rate method determines the reaction order by measuring the concentration of the reactant or product at different times.The specific rate constant can be determined by using the Arrhenius equation, which relates the rate constant to the activation energy, temperature, and frequency factor. The frequency factor can be determined by measuring the rate constant at different temperatures.For such more question on polymerization
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The energy that is released by the focus is called?
Question 1 options:
Ocean waves
Seismic waves
Radioactive waves
Microwaves
Answers
Explanation:
It makes the most sense.
What is the answer, and how to solve this equation
Answers
The combustion reaction of diborane (B2H6) with oxygen (O2) is:
B2H6(g) + 3 O2(l) -> 2 HBO2(g) + 2 H2O(l)
We are given that 198.4 g of B2H6 is used, and we want to find the mass of liquid oxygen (LOX) required for the reaction.
From the balanced equation, we can see that for every 1 mole of B2H6, 3 moles of O2 are needed.
We can use the molar mass of B2H6 (37.83 g/mol) to convert the mass of B2H6 to moles:
198.4 g / 37.83 g/mol = 5.24 moles B2H6
Since 3 moles of O2 are needed for every 1 mole of B2H6, we can multiply the number of moles of B2H6 by 3 to find the number of moles of O2 required:
5.24 moles B2H6 x 3 moles O2/1 mole B2H6 = 15.72 moles O2
We can use the molar mass of O2 (32.00 g/mol) to convert the number of moles of O2 to mass:
15.72 moles O2 x 32.00 g/mol = 502.24 g
So, the mass of liquid oxygen (LOX) needed to burn 198.4 g of B2H6 is approximately 502.24 g.
002.
The combustion reaction of diborane (B2H6) with oxygen (O2) is:
B2H6(g) + 3 O2(l) -> 2 HBO2(g) + 2 H2O(l)
We are given that 126.1 g of B2H6 is used, and we want to find the mass of HBO2 produced from the combustion.
From the balanced equation, we can see that for every 1 mole of B2H6, 2 moles of HBO2 are produced.
We can use the molar mass of B2H6 (37.83 g/mol) to convert the mass of B2H6 to moles:
126.1 g / 37.83 g/mol = 3.34 moles B2H6
Since 2 moles of HBO2 are produced for every 1 mole of B2H6, we can multiply the number of moles of B2H6 by 2 to find the number of moles of HBO2 produced:
3.34 moles B2H6 x 2 moles HBO2/1 mole B2H6 = 6.68 moles HBO2
We can use the molar mass of HBO2 (48.05 g/mol) to convert the number of moles of HBO2 to mass:
6.68 moles HBO2 x 48.05 g/mol = 319.55 g
So, the mass of HBO2 produced from the combustion of 126.1 g of B2H6 is approximately 319.55 g.
a 225g sample of aluminum was heated from 22.5C to 125.5C. the specific heat of aluminum is 0.900 J/G C. how much heat was absorbed by the metal
Answers
Answer:
Q = 20857.5 J
Explanation:
Given data:
Mass of aluminum = 225 g
Initial temperature = 22.5°C
Final temperature = 125.5°C
Specific heat of Al = 0.900 j/g.°C
Heat absorbed by metal = ?
Solution:
Formula:
Q = m.c. ΔT
Q = amount of heat absorbed or released
m = mass of given substance
c = specific heat capacity of substance
ΔT = change in temperature
ΔT = 125.5°C - 22.5°C
ΔT = 103°C
Now we will put the values in formula.
Q = 225 g × 0.900 j/g.°C ×103°C
Q = 20857.5 J
The formula relating mass and weight is W=
Answers
Answer:
The weight of an object is defined as the force of gravity on the object and may be calculated as the mass times the acceleration of gravity, w = mg.
Explanation:
W=F=M x GThe measurement of the effect of gravity on an object's mass is called weight. While mass m is a measurement of the object's amount of matter. W=mg provides the weight.
What is the formula relating to mass and weight?The formula W (weight) = m (mass) times g (gravity, on Earth typically measured at 9.8 N/kg) allows you to determine something's weight from its mass and vice versa.
The common weight calculation formula is W = mg (N/kg). Here, "g" stands for the acceleration brought on by gravity. The value of g on earth is 9.8 m/s2. Other names for it include the gravitational constant.
A body's mass, which is a measurement of how much matter it contains, is equal to its weight when multiplied by the acceleration caused by gravity. The SI unit of weight is the Newton, and the SI unit of mass is the kilogramme (kg) (N).
Thus,The formula relating mass and weight is W=mg.
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If CO2 is not removed by boiling the solution after the addition of HCl, how will this affect the amount of NaOH required to reach the titration endpoint
Answers
Answer:
See explanation
Explanation:
CO2 reacts with water to form carbonic acid as follows;
CO2(g) + H2O(l) ---------> H2CO3(aq)
This makes the solution more acidic hence it will require more NaOH to reach end point due to the increase in acidity.
Hence, if CO2 is not removed by boiling the solution, a greater amount of NaOH is required to reach end point.
C6H12O6 + 602 → 6CO2 + 6H₂O
The most efficient ratio is
1 C6H12O6 6 02.
Which set of reactants will be the most
efficient (least wasteful of materials) for
the reaction?
A. 1.0 mol C6H12O6 and 3.0 mol O₂
B. 1.5 mol C6H₁2O6 and 3.0 mol O₂
C. 3.0 mol C6H₁2O6 and 6.0 mol O₂
D. 0.5 mol C6H₁2O6 and 3.0 mol O₂
Answers
Answer:
D
Explanation:
The ratio of C6H12O6 (which will be referred to as "the carb") to oxygen is 1 to 6, so if we find an answer which has the same ratio, it should be chosen. A is 1:3
B is even worse with a ratio of the carb to oxygen of 1:2
C is the same as B, 1:2
D has a ratio of the carb to oxygen of 1:6, which is what we are looking for.
Scientific Notation. Change the following number to its scientific notation in standard form (a.bc x 10+y) with THREE significant figures. (4 pts)
0.001512 m
0.01549 L
1.557 g
15 347 mm
Answers
Answer:
1) 1.51 * 10^-3
2) 1.55 * 10^-2
3) cannot be turned into scientific notation
4) If 15,347; 1.53 * 10^4 but If 15.347; 1.53 * 10^1
Explanation:
Scientific notation just means moving the decimal place of a number so that there is only one number in the one's place (the exponent on the ten is the number of times the decimal moved). It is used to write really big or really small numbers without having to write a bunch of zeros.
A heat engine with 0.500 mol of a monatomic ideal gas initially fills a 3000 cm3 cylinder at 800 K. The gas goes through the following closed cycle: - Isothermal expansion to 4000 cm3. - Isochoric cooling to 300 K. - Isothermal compression to 3000 cm3. - Isochoric heating to 800 K.
Answers
Answer:
Explanation:
\(\text{For isothermal expansion:}\)
\(W_1 = nRT_1 In (\dfrac{V_2}{V_1}) \\ \\ W_1 = 0.5 \times 8.314 \times 800 \times In (\dfrac{4000}{3000})\\ \\ W _1 = 956.72 \ J \\ \\ Q_1 = W_1 = 956.72 \ J \ since \ (dU=0) \\ \\ \\ \text{For isochoric cooling,} W_2 = 0} \\ \\ Q_2 = nCr \Delta T \\ \\ Q_2 = 0.5 (\dfrac{3R}{2})(T_2-T_1) \\ \\ Q_2 = 0.5 \times \dfrac{3\times 8.314}{2}(-500)= -3117.75\)
\(\text{For Isothermal compression:}\\\\ W_3 = nRT_2 \ In (\dfrac{V_4}{V_3}) \\ \\ 0.5 \times 8.314 \times 300 \times In (\dfrac{3000}{4000}) \\ \\ W_3 =- 358.77 \ J \\ \\ Q_3=W_3= - 358.77 \ J\)
\(\text{For isochoric heating; }W_4 =0} \\ \\ Q_4 = nC_v\Delta T \\ \\ = 0.5 \times \dfrac{3}{2}\times 8.314 \times 500 \\ \\ Q_4 = 3117.5 \ J\)
\(\text{Total workdone W}= W_1 + W_2+W_3+W_4 \\ \\ W = 956.71 \ J + 0 + (-358.77 \ J) +0 \\ \\ \mathbf{W = 597.94 J} \\ \\ \\ \eta = \dfrac{Work \ done}{heat \ taken } \\ \\ \eta = \dfrac{W}{Q_1+Q_4} \\ \\ \eta = \dfrac{597.94 \ J}{956.71 \ J + 3117.5 \ J} \\ \\ \eta = 0.1468 \\ \\ \mathbf{\eta = 14.68\%}\)
Would an object with a higher specific heat absorb more or less energy when heated?
Answers
Answer:
less
Explanation:
the more heat it has, the less a given heat will affect it
Answer:
more heat
Explanation:
Calculate the relative atomic mass
Answers
The relative atomic mass of the sample of rubidium is approximately 48.6.
To calculate the relative atomic mass of the sample of rubidium using the given information, we can use the following steps:
Calculate the contribution of each isotope to the average atomic mass based on their abundance:
Isotope 1: Relative abundance = 72%, Mass number = 48
Isotope 2: Relative abundance = 28%, Mass number = 50
Contribution of isotope 1 = (72/100) * 48
Contribution of isotope 2 = (28/100) * 50
Sum the contributions of each isotope to obtain the average atomic mass:
Average atomic mass = Contribution of isotope 1 + Contribution of isotope 2
Calculate the values for the contributions and sum them up.
Round the average atomic mass to the appropriate number of significant figures.
Let's perform the calculations:
Contribution of isotope 1 = (72/100) * 48 = 34.56
Contribution of isotope 2 = (28/100) * 50 = 14.00
Average atomic mass = Contribution of isotope 1 + Contribution of isotope 2
Average atomic mass = 34.56 + 14.00 = 48.56
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Introduction
Sodium bicarbonate, NaHCO3 (MW 84.007 g/mol), is commonly known as baking soda. Sodium bicarbonate is a solid crystalline and
appears as a white powder. Sodium bicarbonate can be easily be converted to sodium carbonate, Na2CO3 (MW 105.988 g/mol) by
decomposition to produce H₂O and CO₂. This can be accomplished by placing the sample in the oven at 176 deg F.
Unbalanced chemical equation: NaHCO3 (s) + heat-> Na₂CO3 (s)+ H₂O(g) + CO₂(g)
Demonstration Video: [Click here for video]
Percent yield - (actual yield/ theoretical yield) x 100
Purpose
This assignment is designed to teach students about decomposition reactions and determine the percent yield. At the end of the experiment, the
student will have a better understanding of how this assignment will benefit their learning.
Task
-Write a balanced chemical equation
- Calculate the percent yield of the decomposition reaction (Must show your work)
Answers
We can actually deduce here that the purpose of this assignment is to teach students about decomposition reactions and allow them to determine the percent yield.
What is the experiment all about?By performing the experiment, students will gain a better understanding of the concepts involved and how they relate to their overall learning.
The specific focus of this assignment is the decomposition of sodium bicarbonate (NaHCO3) to produce sodium carbonate (Na2CO3), water (H2O), and carbon dioxide (CO2). The unbalanced chemical equation for this reaction is:
NaHCO3 (s) + heat -> Na2CO3 (s) + H2O (g) + CO2 (g)
To understanding the reaction itself, students will also learn about the concept of percent yield. Percent yield is a measure of the efficiency of a chemical reaction and is calculated by dividing the actual yield of the desired product by the theoretical yield, then multiplying by 100.
This calculation allows students to assess how well the reaction proceeds in terms of producing the expected amount of sodium carbonate.
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please help me asap
Answers
Answer:
It should be A the gravitational force on the moon is weaker than on Earth
What volume would 7.83x10^3 moles of nitrogen gas occupy
Answers
Answer:29.232
Explanation:6.023x10^23
Is particles rearrange into new combinations, forming new substances a physical change or chemical change?
Answers
Particles rearranging into new combinations and forming new substances is a chemical change.
This is because in a chemical change, the bonds between atoms or molecules are broken and new bonds are formed to create a different substance with unique properties. This process usually involves the release or absorption of energy in the form of heat, light, or sound.
On the other hand, a physical change involves a change in the physical appearance or state of matter of a substance without changing its chemical identity. Examples of physical changes include melting, freezing, boiling, and changes in size, shape, or color.
In the case of particles rearranging into new combinations and forming new substances, the resulting substance has different chemical properties than the original substance. For example, if you burn a piece of paper, the paper undergoes a chemical change as it is transformed into ash, which has different properties than the paper. This is why it is important to understand the difference between physical and chemical changes in science and everyday life.
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If South America were not there,
explain how the direction of the South
Equatorial current would be different.
Answers
Its Southern Equatorial River is diverted by the South American continent's size. The deflection of the stream causes them to flow in a different direction.
What do you understand by mass?
It's the most fundamental property of a substance and one of the fundamental physical quantities. The quantity of matter in a body is referred to as its mass. The SI gravity unit is the kilogram. (kg). The mass of a body is constant over time.
What does mass vs. weight mean?
A body's mass is the exact figure of material that composes that body, as opposed to its weight, which is the force applied to it as a consequence of the acceleration brought on by gravity. This
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what type of reacion is NO2 + H2O → HNO3
Answers
Answer:
acid base reaction cuz no is base and h2o is none and hno3
Dr. Wong's assistant made the observations below while heating a sample of solid hydrogen. Using the data and observations in the table below, create a heating curve for hydrogen that Dr. Wong can reference during his laboratory testing. Be sure to include and label the following items in your heating curve:
Create temperature and time intervals that are appropriate for the data.
Don't start the temperature on the graph at 0 °C because the time intervals will be too large for the hydrogen data.
Label the melting and boiling points on the curve.
Label the three states and the two transition phases on the curve.
Heating data:
Time (Minutes) Observations
0:00–2:43 Hydrogen is a solid at −263 °C. Heat is added to sample.
2:43–6:15 Hydrogen begins to change into a liquid at −259 °C.
6:15–10:36 Temperature of the liquid begins to increase.
10:36–14:01 Hydrogen begins to form a gas at −253 °C.
14:01–18:00 Temperature of the gas begins to increase.
18:00 Final temperature of hydrogen gas is −245 °C.
Answers
Using the given observations the hydrogen heating curve can be constructed as follows:
Temperature (°C) | State of Hydrogen
-263 | Solid-259 | Melting (Solid to Liquid)-253 | Boiling (Liquid to Gas)-245 | GasBy subtracting the start time from the end time for each step, one can calculate the time interval:
Solid: 0:00 – 2:43 (2 minutes 43 seconds)Melting: 2:43 – 6:15 (3 minutes 32 seconds)Liquid heating: 6:15 – 10:36 (4 minutes 21 seconds)Boiling: 10:36 – 14:01 (3 minutes 25 seconds)Gas heating: 14:01 – 18:00 (3 minutes 59 seconds)On the curve, the melting point and boiling point of hydrogen are shown as -259°C and -253°C, respectively. The curve can also be used to represent the three states of matter (solid, liquid, and gas) as well as the two transitional phases (melting and boiling).
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The table shows the nature of the reactants and products formed in a certain type of chemical reaction.
Nature of Reactants and Products
Reactants Products
Ionic compound + Ionic compound Ionic compound + Ionic compound
Which of the following is true about this type of chemical reaction?
It is a single replacement reaction, and all four compounds are different.
It is a double replacement reaction, and all four compounds are different.
It is a single replacement reaction, and each compound has the same set of ions.
It is a double replacement reaction, and each compound has the same set of ions.
Answers
Answer:
A
Explanation:
A
Convert 24.3 cm to mi
show equation
Answers
Answer:
if you are talking about miles the answer would be is 0.0001509932(divided by 160934)
if you are talking about mililiters it would be 24.3(multiply times one)
hope this helps
An atom with5 protons 6 neutrons and 5 electrons has an atomic mass of Amy
Answers
Answer: The number of neutrons for a given element is the only number that can change and still have the identity of the element stay the same, (because the atomic number is the number of protons). In this case the mass number would be 11.
Hope this helps...... Stay safe and have a Merry Christmas!!!!!! :D
moles of each product that would form as a result of the decomposition of aspirin
Answers
The decomposition of aspirin (acetylsalicylic acid,\(C_{9} H_{8} O_{4}\)) can occur through the hydrolysis reaction, resulting in the formation of acetic acid (\(CH_{3} COOH\)) and salicylic acid (\(C_{7} H_{6}O_{3}\)).
The decomposition of aspirin (acetylsalicylic acid, \(C_{9} H_{8} O_{4}\)) can occur through the hydrolysis reaction, resulting in the formation of acetic acid (\(CH_{3} COOH\)) and salicylic acid (\(C_{7} H_{6}O_{3}\)). To determine the moles of each product formed, we need to consider the balanced chemical equation for the reaction:
\(C_{9} H_{8} O_{4} = > C_{7} H_{6}O_{3} +CH_{3} COOH\)
From the equation, we can see that for every 1 mole of aspirin, 1 mole of salicylic acid and 1 mole of acetic acid are produced.
Therefore, the moles of salicylic acid and acetic acid formed will be equal to the number of moles of aspirin that decomposes. If we know the amount of aspirin in moles, we can directly calculate the moles of each product based on stoichiometry.
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Which of the following best describes what happens when an ionic bond forms?
Answers
Answer:
Electrons are shared when ionic bonds are formed
The statement which describes an ionic bond formation is " a metal donates one or more of its electron to a non-metal.
What is an ionic bond?An ionic bond is formed between two atoms by electron donating by one atom and gaining by the second atom. The electron donating element is electropositive and the electron accepting one is electronegative.
Normally the electropositive elements are metals of 1st or 2nd group of periodic table. They can make bond with non-metals like halogens and other electronegative elements like nitrogen, oxygen etc.
Therefore, the force of attraction which binds two atoms together in an ionic bond is formed by electron donation by a metal to a non-metal.
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Can someone please help me?
Answers
The IUPAC name for each of the compounds would be:
A. 2,6-Dimethyl octane
B. Octane
What is IUPAC naming?IUPAC naming is a system of naming organic compounds according to the rules set up by the International Union of Pure and Applied Chemistry.
According to these rules:
The longest carbon chain, otherwise known as the parent chain is considered.The parent chain is numbered in such a way that the branching chain or chains (substituents) get the lowest number.The location of each substituent is written. If there is more than one substituent, they are written in alphabetical order.Applying these rules to the structures in the image, the IUPAC names would be as follows:
A. 2,6-Dimethyl octane
B. Octane
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sample of brown dye from a lolly is placed at the origin on a strip of a chromatography plate. The solvent front moves 15.0 cm from the origin. A blue component of the dye moves 5 cm and a red component 3 cm in the same time. Calculate the Rf values of the two components
Answers
The Rf value for the blue component is approximately 0.333, and the Rf value for the red component is 0.2.
The Rf value, or the retention factor, is a ratio used in chromatography to quantify the migration distance of a component relative to the migration distance of the solvent front. It is calculated using the formula:
Rf = (distance moved by the component) / (distance moved by the solvent front)
Given the information provided:
Distance moved by the blue component = 5 cm
Distance moved by the red component = 3 cm
Distance moved by the solvent front = 15 cm
Now we can calculate the Rf values for the blue and red components:
Rf_blue = (distance moved by the blue component) / (distance moved by the solvent front)
= 5 cm / 15 cm
= 1/3
≈ 0.333
Rf_red = (distance moved by the red component) / (distance moved by the solvent front)
= 3 cm / 15 cm
= 1/5
= 0.2
Therefore, the Rf value for the blue component is approximately 0.333, and the Rf value for the red component is 0.2.
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In the electrolysis of water, the 50 cm3 of a gas is obtained at the anode. a. Write the chemical equation. b. What is the gas obtained at the anode? c. What is the volume of gas obtained at the anode?
Answers
a. The chemical equation for the electrolysis of water is:
2H2O(l) → 2H2(g) + O2(g)
b. The gas obtained at the anode during the electrolysis of water is oxygen (O2).
c. The volume of gas obtained at the anode is 0.002232 moles or approximately 0.05 L of oxygen gas.
a. The chemical equation for the electrolysis of water is:
2H2O(l) → 2H2(g) + O2(g)
b. The gas obtained at the anode during the electrolysis of water is oxygen (O2).
c. According to the balanced chemical equation, for every 2 moles of water (H2O) electrolyzed, 1 mole of oxygen gas (O2) is obtained. Since 1 mole of any gas occupies 22.4 L at standard temperature and pressure (STP), we can use the stoichiometry of the reaction to determine the volume of oxygen gas produced.
Given that 50 cm³ of gas is obtained at the anode, we need to convert this volume to liters:
50 cm³ = 50/1000 L = 0.05 L
Using the stoichiometric ratio of the balanced equation, we find that 2 moles of water produce 1 mole of oxygen gas. Therefore, 0.05 L of oxygen gas is equivalent to:
0.05 L × (1 mole/22.4 L) = 0.002232 moles
Thus, the volume of gas obtained at the anode is 0.002232 moles or approximately 0.05 L of oxygen gas.
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Pls answer how many neutrons, protons, and electrons there are. I will give points, thanks, 5 stars, and brainliest if you answer correctly. Thank you and have a nice day :)
Answers
Answer:
19 electron 19 proton 20 neutrons
Here is a second order reaction A→ P. If the initial concentration of A 0.0818 M goes down 30.0% in 3.15 minutes, what is the rate constant for the reaction?
Answers
The rate constant of the second-order reaction is 0.111 M^-1 min^-1.
The given data represents a second-order reaction where the rate of the reaction is proportional to the square of the concentration of A.
The integrated form of the second-order reaction is:
1/[A]t = kt + 1/[A]0
where [A]t and [A]0 are the concentrations of reactant A at time t and time zero, respectively, k is the rate constant.
We can use the given information to calculate the rate constant (k) of the reaction for the given half-life (t1/2) of 3.15 minutes:
t1/2 = (1 / k[A]0)
Using the percentage decrease in concentration and the given initial concentration, we can calculate the concentration of A at time t:
[A]t = [A]0 - 0.30[A]0 = 0.57126 M
Substituting the given values, we get:
3.15 min = (1 / k)(0.0818 M) / (0.0818 M - 0.57126 M)
Simplifying the equation above, we can solve for k:
k = 0.111 M^-1 min^-1
Therefore, the rate constant of the second-order reaction is 0.111 M^-1 min^-1.
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If the molar solubility of PbCl2 is 1.62×10-2, what is the solubility product constant Ksp.
Answers
5.2*\(10^{-4}\) is the solubility product constant Ksp.
What makes KSP a solubility product?
The explanation is that it stays at the same concentration throughout the process. Ksp, then, stands for the greatest degree to which a solid can dissolve in a solution. Ksp, also known as the solubility product constant, is the result of the ion concentrations in a saturated solution of an ionic substance.
The equilibrium constant known as the solubility product constant, or Ksp, measures how much an ionic substance dissolves in water. We can compare the Ksp values of compounds to assess their respective solubilities if they dissolve to create the same number of ions.
Pb\(Cl_{2}\)(s) ↔ \(Pb_{2}\)+(aq) + 2Cl-(aq)
Ksp = [Pb2+] [Cl-]^2
Ksp = S* 2S
S is 1.62×\(10^{-2}\)
Ksp = 1.62×\(10^{-2}\)* 2 * 1.62×\(10^{-2}\)
Ksp = 5.2*\(10^{-4}\)
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5.2*\(10^{-4}\) is the solubility product constant Ksp.
What makes KSP a solubility product?
The explanation is that it stays at the same concentration throughout the process. Ksp, then, stands for the greatest degree to which a solid can dissolve in a solution. Ksp, also known as the solubility product constant, is the result of the ion concentrations in a saturated solution of an ionic substance.
The equilibrium constant known as the solubility product constant, or Ksp, measures how much an ionic substance dissolves in water. We can compare the Ksp values of compounds to assess their respective solubilities if they dissolve to create the same number of ions.
Pb(s) ↔ +(aq) + 2Cl-(aq)
Ksp = [Pb2+] \([Cl-]^{2}\)
Ksp = S* 2S
S is 1.62×\(10^{-2\)
Ksp = 1.62× \(10^{-2\)*2 * 1.62×\(10^{-2\)
Ksp = 5.2* \(10^{-4}\)
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What is the mass of 7.8 x 1022 carbon atoms?
Answers
The mass of 7.8 x 10^22 carbon atoms is 1.553 grams.
To determine the mass of 7.8 x 10^22 carbon atoms, we need to use the concept of molar mass and Avogadro's number.
The molar mass of carbon (C) is approximately 12.01 g/mol, which represents the mass of one mole of carbon atoms. Avogadro's number states that there are 6.022 x 10^23 atoms in one mole of any substance.
Now, let's calculate the mass of 7.8 x 10^22 carbon atoms:
Determine the number of moles:
Number of moles = Number of atoms / Avogadro's number
Number of moles = (7.8 x 10^22) / (6.022 x 10^23) = 0.1295 moles
Calculate the mass:
Mass = Number of moles x Molar mass
Mass = 0.1295 moles x 12.01 g/mol = 1.553 g
Therefore, the mass of 7.8 x 10^22 carbon atoms is approximately 1.553 grams.
The calculation is based on the understanding that the molar mass of carbon represents the mass of one mole of carbon atoms. By dividing the given number of atoms by Avogadro's number, we obtain the number of moles. Multiplying the number of moles by the molar mass gives us the mass in grams.
Know more about Avogadro's number here:
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