What is the pressure of a 50.0L tank that contains 4.04kg of oxygen at 23 degrees celcius

From the calculation, the percentage of water in the sodium hydroxide sample is 7%.

The term neutralization has to do with the reaction between an acid and a base to yiled salt and water.

Now we have  to apply the titration formula;

CAVA/CBVB = NA/NB

CA = concentration of acid

CB = concentration of base

VA = volume of acid

VB = volume of base

NA = number of moles of acid

NB = number of moles of base

The reaction equation is; HCl + NaOH ----->NaCl + H2O

CAVANB = CBVBNA

CB = CAVANB /VBNA

CB = 34.9 * 0.2 M * 1/10 * 1

CB = 0.698 M

Number of moles = Conncentration * volume

= 0.698 M * 100/1000 L = 0.0698 moles

Mass = Number of moles * molar mass

Mass =  0.0698 moles * 40 g/mol = 2.79 g

percent of NaOH = 2.79 g/ 3g * 100/1 = 93%

Percent of water = 100- 93 = 7%

Learn more about neutralization: https://brainly.com/question/15395418

B. The landform shared by both coastlines is dunes.

Sand dune is the process through which sand grains gather into a mound or ridge by the action breeze caused by gravity.

A sand dune is a landform made from wind or water as deposition agent. This sand dune usually take the shape of a ridge or hill.

Sand dunes are formed when rock break into particles that are easily carried by the wind to form this upward shape.

Once that first upward shape forms, sand gather up on a particular side until it takes the shape of dune

Thus, the landform shared by both coastlines is dunes.

Learn more about sand dunes here: https://brainly.com/question/24879138

#SPJ1

Answer:A thermometer is a tool that measures temperature — how hot or cold something is. Thermometers are used to see if you have a fever or tell you how cold it is outside.

Explanation:

Answer: A Device That Measures Temperature.

Explanation:

The answer responses to  the structures shown in the diagram are:

A. chromosomes

C. They would be the same.

B. They are in pairs because each one comes from a different parent.

The chromosomes are in pairs because humans have a diploid number of chromosomes, meaning they have two sets of chromosomes, one inherited from each parent.

The nucleus is important in eukaryotic cells and has many important parts that help the cell work properly. There are some parts inside cells called the nuclear membrane, nucleoplasm, nucleolus, and chromatin. Chromatin is made up of DNA and other proteins.

Every part of a person's body has the same genes, but the way they are organized can be different in different types of cells. The chromosomes in our skin cells might not be the same as the chromosomes in our muscle cells, even if they come from the same person.

Learn more about  nucleus from

https://brainly.com/question/9376695

#SPJ1

Identify the structures shown.

A. chromosomes

B. mitochondria

C. nuclei

D. vacuoles

C

Describe how the structures from this cell would compare to the structures in the nucleus of another body cell from the same person.

A. There would be longer.

B. They would be shorter.

C. They would be the same.

D. They would be different.

Describe how the structures from this cell would compare to the structures in the nucleus of another body cell from the same person.

A. There would be longer.

B. They would be shorter.

C. They would be the same.

D. They would be different.

Explain why the structures are in pairs.

A. They aren't in pairs.

B. They are in pairs because each one comes from a different parent.

C. This cell is making a copy of itself.

D. The cell always has 2 copies in case 1 is damaged.

\(12 \times 2 + 2 \times 2 + 16 \times 2\)

\( = 24 + 2 + 32 \)

\( = 58 \: gram \: per \: mole\)

\(58 = 100\% \\ 24 = x\%\)

\(x = \frac{24 \times 100}{58} = 41.38\%\)

Explanation:

it can suddenly increase when more and more people have babies and the infant rate goes up. and how it might affect the ecosystem is the pollution that people give off.

Answer:

Explanation:

Due to less predators in the Savannah/habitat, the population could unexpectedly grow. This will have an impact on the environment because it will give rise to more prey as there will be fewer predators. If too many herbivores are present on one feeding site, competition for food will occur. If there are more plants in an area than normal, it can increase the population of animals that consume the plant. If the population of one animal rises, the population of animals that consume that animal could also rise.

Population growth isn't always good. A population may often grow too big to sustain the climate. Other modifications in limiting variables can cause a population to decline. The population will decrease if a population becomes diseased, and the population of animals that consume the diseased animals will decrease as well. Populations in nature typically balance themselves. Sometimes, they can't always restore a natural balance as man affects populations.

At equilibrium, the number of moles of \(Cl_2\) (g) will be 0.2025 mol.

1: Write the balanced chemical equation:

\(C_O\)(g) + \(Cl_2\)(g) ⟶ \(C_OCl_2\)(g)

2: Set up an ICE table to track the changes in moles of the substances involved in the reaction.

Initial:

\(C_O\)(g) = 0.3500 mol

\(Cl_2\)(g) = 0.05500 mol

\(C_OCl_2\)(g) = 0 mol

Change:

\(C_O\)(g) = -x

\(Cl_2\)(g) = -x

\(C_OCl_2\)(g) = +x

Equilibrium:

\(C_O\)(g) = 0.3500 - x mol

\(Cl_2\)(g) = 0.05500 - x mol

\(C_OCl_2\)(g) = x mol

3: Write the expression for the equilibrium constant (Kc) using the concentrations of the species involved:

Kc = [\(C_OCl_2\)(g)] / [\(C_O\)(g)] * [\(Cl_2\)(g)]

4: Substitute the given equilibrium constant (Kc) value into the expression:

1.2 x \(10^3\) = x / (0.3500 - x) * (0.05500 - x)

5: Solve the equation for x. Rearrange the equation to obtain a quadratic equation:

1.2 x \(10^3\) * (0.3500 - x) * (0.05500 - x) = x

6: Simplify and solve the quadratic equation. This can be done by multiplying out the terms, rearranging the equation to standard quadratic form, and then using the quadratic formula.

7: After solving the quadratic equation, you will find two possible values for x. However, since the number of moles cannot be negative, we discard the negative solution.

8: The positive value of x represents the number of moles of \(Cl_2\)(g) at equilibrium. Substitute the value of x into the expression for \(Cl_2\)(g):

\(Cl_2\)(g) = 0.05500 - x

9: Calculate the value of \(Cl_2\)(g) at equilibrium:

\(Cl_2\)(g) = 0.05500 - x

\(Cl_2\)(g) = 0.05500 - (positive value of x)

10: Calculate the final value of \(Cl_2\) (g) at equilibrium to get the answer.

Therefore, at equilibrium, the number of moles of \(Cl_2\) (g) will be 0.2025 mol.

For more such questions on equilibrium, click on:

https://brainly.com/question/517289

#SPJ8

1) The student which is neither precise nor accurate is student B

2) The student which is most accurate on any single trial is student A

3) The student that is both precise and accurate is student C

4) The student which is precise but not accurate is student D

The term precision has to do with the fact that the values of the measurement are close together. Precise values do not scatter a lot. They vary within a narrow range.

An accurate measurement is one that is close to the true value. This means that it does not differ so much from the true value of the measurement.

Hence;

1) The student which is neither precise nor accurate is student B

2) The student which is most accurate on any single trial is student A

3) The student that is both precise and accurate is student C

4) The student which is precise but not accurate is student D

Learn more about precision and accuracy:https://brainly.com/question/15276983

#SPJ1

we would need 2625.13 grams (or 2.62513 kilograms) of NaCl.

To calculate the mass of NaCl required to produce a 26.4 mol/L solution with a 1.7 L volume, we need to use the formula that relates the mass of solute, moles of solute, and molarity:Molarity (M) = moles of solute / liters of solution Rearranging this formula, we get:moles of solute = Molarity (M) x liters of solutionWe can use this formula to find the moles of NaCl needed:moles of NaCl = 26.4 mol/L x 1.7 L = 44.88 molNow, we can use the molar mass of NaCl to convert from moles to grams. The molar mass of NaCl is 58.44 g/mol:mass of NaCl = moles of NaCl x molar mass of NaClmass of NaCl = 44.88 mol x 58.44 g/mol = 2625.13 gTo produce a 26.4 mol/L solution with a 1.7 L volume.

for more question on NaCl

https://brainly.com/question/23269908

#SPJ8

The final temperature of the water is: T_final = 45.0°C

We can use the formula for the specific heat capacity of the water to solve this problem:

q = mcΔT

First, we can calculate the initial energy of the water:

q = mcΔT

q = (10.0 g) (4.184 J/g°C) (25.0°C)

q = 1,046 J

Next, we can calculate the final temperature after absorbing 840 J:

q = mcΔT

840 J = (10.0 g) (4.184 J/g°C) (ΔT)

ΔT = 20.0°C

Therefore, the final temperature of the water is:

T_final = T_initial + ΔT

T_final = 25.0°C + 20.0°C

T_final = 45.0°C

To know more about final temperature, here

brainly.com/question/11244611

#SPJ1

Answer:

Potassium  

Explanation:

Answer:

The ATP is broken down into glucose which the cells use for energy.

Boyle's and Avogadro's Laws all include Gases and the constant K which is therefore denoted as option I and II.

Boyle's law states that the pressure of an ideal gas increases as its container volume decreases and it was coined by a scientist known as Robert Boyle.

Avogadro's law on the other hand states that equal volumes of gases at constant pressure and temperature tend to occupy the same number of molecules and they both involve gases and have a constant which therefore makes it the correct choice.

Read more about Boyle's law here https://brainly.com/question/1696010

#SPJ1

The molarity of the NiSO₄ solution made by dissolving 38.81 grams of nickel (ii) sulfate, NiSO₄, in enough water to make 0.467 liters of solution is 0.535 M

First, we shall obtain the mole of 38.81 grams of nickel (ii) sulfate, NiSO₄. Details below:

Mole of NiSO₄ = mass / molar mass

= 38.81 / 154.75

= 0.25 mole

Now, we shall determine the molarity of the solution. Details below:

Molarity of solution = mole / volume

= 0.25 / 0.467

= 0.535 M

Thus, the molarity of the solution is 0.535 M

Learn more about molarity:

https://brainly.com/question/16073358

#SPJ1

Answer:

the systematic name is called Lithium sulfide.

An inorganic substance composed of the elements lithium (Li) and sulfur (S) is known as lithium sulfide \((Li_2S)\).

It is a substance that solidifies in the shape of a crystal. Lithium ions in lithium sulfide have a positive charge, while sulfide ions have a negative charge. The chemical lithium sulfide is important in many industries. It is often employed in the synthesis of various lithium compounds, the manufacture of lithium batteries, and the manufacture of ceramics. Due to their high energy density, lithium batteries are often employed in portable electronics and electric vehicles.

Lithium sulfide is an ionic compound that has a high melting point in terms of physical characteristics. Although it is insoluble in water, many organic solvents can help dissolve it.

Learn more about Lithium sulfide, here:

https://brainly.com/question/30637961

#SPJ6

Answer:

K = 3.45

Explanation:

In the reaction:

SO₂(g) + NO₂(g) ⇄ SO₃(g) + NO(g)

And K is:

K = [SO₃] [NO] / [SO₂] [NO₂]

Where [] are concentrations in equilibrium, as volume is 1L, [] could be taken as moles.

Equilibrium concentrations are:

[SO₂] = 2.00 moles - X

[NO₂] = 2.00 moles - X

[SO₃] = X

[NO] = X

AS moles of NO are 1.3 moles, X = 1.3 moles

Replacing:

[SO₂] = 0.7 moles = 0.7M

[NO₂] = 0.7M

[SO₃] = 1.3M

[NO] = 1.3M

K = 1.3M² / 0.7M²

The equilibrium constant is 3.5.

First of all we must obtain the equation of the reaction as follows;

SO₂(g) + NO₂(g) ⇄ SO₃(g) + NO(g)

Next we obtain the initial concentration of each specie;

SO₂(g) =  2.00 moles/1.00-L  = 2 M

NO₂(g)  =  2.00 moles/1.00-L  = 2 M

At equilibrium;

NO =  1.30 moles//1.00-L  = 1.3 M

The we set up the ICE table as follows;

          SO₂(g) + NO₂(g) ⇄ SO₃(g) + NO(g)

I          2             2                0          0

C        -x             -x               +x          +x

E       2 - x         2 - x            0 + x     0 + x

When x = 1.3

Concentration of each specie at equilibrium;

SO₂(g) = 2 - 1.3 = 0.7 M

NO₂(g) = 2 - 1.3 = 0.7 M

SO₃(g)  = 1.3 M

NO(g) M

K = (1.3)^2/(0.7)^2

K = 3.5

Learn more about equilibrium constant: https://brainly.com/question/17960050

Answer:

              24.97 g of C

Explanation:

Molar Mass of Ibuprofen is 206.29 g/mol

Molecular Formula of Ibuprofen is C₁₃H₁₈O₂

Also, 13 C atoms has mass of 12.01 × 13 = 156.13 g

Percentage of C in Ibuprofen,

% age of C = 156.13 / 206.29 × 100 = 75.68%

Now calculate 75.68 % of 33 g as,

75.68 % = x / 33 g × 100

x = 75.68 × 33 / 100

x = 24.97 g of C

Answer:

Explanation:

The reaction between 2 chloro- 2 methyl pentane and sodium iodide takes place through SN2 mechanism . iodide ion is the nucleophile which attacks the substrate . The rate of such reaction depends upon concentration of both the nucleophile and the substrate .

Hence rate of reaction will be increased by 2 x 2 = 4 times.

option D ) is correct.

Explanation:

The given reaction represents the reaction between a tertiary alkyl halide that is 2-chloro-2-methylpentane and a nucleophile that is NaI.

This reaction favors SN1 mechanism which has order one.

So, the given reaction follows first-order kinetics.

For a first-order reaction, the rate law is:

rate =k [A]

That means the rate of the reaction is dependent on the concentration of reactants.

So, when the concentration of the reactant is doubled then, the rate of the reaction is also doubled.

Among the given options the correct answer is option B) It would double the rate.

Answer:

because it has one cotyledon and it has parallel venation also maize is grain..

C. CaCl₂ (aq) and K₂CO3(aq)  will produce a precipitation reaction among the following.

A precipitation reaction is a type of chemical reaction in which an insoluble solid (precipitate) is formed from two or more soluble compounds. The formation of a precipitate is often indicated by a change in the color of the solution or by the appearance of a solid.In option C, CaCl2 and K2CO3 are both dissolved in water and when they are mixed, a precipitation reaction occurs, where the calcium ions in CaCl2 react with the carbonate ions in K2CO3 to form solid calcium carbonate (CaCO3), which is insoluble in water. Thus, it will precipitate out of the solution as a solid. Option A, LINO3 and Nal, and option B, HNO3 and Sn(OH)2, are both acid-base neutralization reactions, in which an acid and a base react to form water.

Learn more about precipitation reaction here:

https://brainly.com/question/29762381

#SPJ4

The structure is consistent with this 'H NMR spectrum is CH;OCCH;. Option a is correct answer.

The 'H NMR spectrum doesn't provide enough information to definitively determine the structure of the molecule. However, based solely on given options, the structure that is most consistent with the chemical shift of the proton signal at around 3.7 ppm is option A, CH3OC(=O)CH2CH3.

This is because the chemical shift of the proton on the OCH3 group is typically found in this region, and the presence of the carbonyl group would also affect the chemical shift of nearby protons. However, additional spectroscopic data and/or chemical tests may be necessary to confirm the structure.

To know more about the H NMR spectrum, here

brainly.com/question/27755499

#SPJ4

--The complete question is, Which structure is consistent with this 'H NMR spectrum? CH;OCCH; (B) COCH;CH; (C) OCCH,CH; (D) OCCH; CH;--

Heat is added to ice at 0 °C. Explain why the temperature of the ice does not change. What does change?When heat is added to ice at 0°C, the temperature of the ice does not change. This happens because all the heat energy is used up in overcoming the intermolecular forces of attraction (hydrogen bonds) that exist between the water molecules in ice.

For such more question on molecules

https://brainly.com/question/475709

#SPJ8

Answer:

B

Explanation:

the group number is=valence electrons. element 1 is in group 1 element 18 is in group 8. 1<8

Answer:

the answer is b

Explanation:

i just know

Answer:

A. CaCO(s)+SO(g)+O(g) --> CaSO(s)+CO(g)

A. CaCO(s)+SO(g)+O(g) --> CaSO(s)+CO(g)

Answer:

6.850767 grams is the answer

\(0.987 ~ \text{moles of Li} = 0.987 \times \text{Molar mass of Li}\\\\~~~~~~~~~~~~~~~~~~~~~~~=0.987 \times 6.941~ g\\\\~~~~~~~~~~~~~~~~~~~~~~~=6.850767~ g\)

Answer:

Any nucleus that has an overall spin quantum number of zero (I=0) is NMR inactive

Explanation:

A wide range of nuclei are found to be NMR active. NMR is the acronym for nuclear magnetic resonance. It is a powerful spectroscopic tool which uses radio waves. The nuclear spin is described by the nuclear quantum number I and can take on values of; 0,1/2, 1, 3/2,2,5/2 etc.

Any nucleus that has an overall spin quantum number of zero (I=0) is NMR inactive e.g Carbon-12 and Oxygen-16 nuclei.

Commonly, all NMR active nuclei posses I ≥ 1/2, Hydrogen -1 , Carbon-13 and boron-11 are common examples of NMR active nuclei.

Answer:

1) 0.261 M, 2) 0.662 M

Explanation:

1. We must calculate the molarity of 0.300 mol of Na₂S in 1.15 L of solution.

We know, Molarity = moles of solute/ volume of solution

= 0.300 mol/ 1.15 L
= 0.261 M

2. We must calculate the molarity of 34.7 g of MgS (56 u) in 935 mL of solution.

We know, Molarity = moles of solute/ volume of solution
Moles of MgS = 34.7/56 = 0.619
Volume of solution = 935 mL = 0.935 L

= 0.619 mol/ 0.935  L
= 0.662 M

The percentage of purple offspring and green offspring are 25% and  25% respectively.

Offspring are living creatures' young creations, generated either from a single organism as well as, inside the event of sexual reproduction, by two organisms. In a broader sense, collective children may be referred to by the term brood or progeny.

This can apply to a group of children born at the same time, such as chicks hatching from a single clutch of eggs, or to the entire offspring, as in the case of the honeybee.

purple offspring = 25%

green offspring = 25%

Therefore, the percentage of purple offspring and green offspring are  25% and  25% respectively.

To learn more about offspring, here:

https://brainly.com/question/10021635

#SPJ9

Your question is incomplete but most probably your full question was,

If G = green and g = purple, how many offspring will be purple if the parents' genotypes are gg and write the percentage of offspring that is green and the percentage that is purple. 25%, 35%,45%

Answer:

B. Chemically reactive

Explanation:

A Chemically reactive element is an element that is likely to combine with another element to form new substances

The reactivity of the element depends on the number of electrons in the outermost energy level and even the distance of the outermost energy level from the nucleus.  From the periodic table, Fluorine is the most reactive non-metal while francium is the most chemically reactive metal