Chemistry Middle School

How many liters of 4.0 M NaOH solution will react with 1.2 mol H2SO4? (Remember to balance the equation.)

H2SO4 + NaOH → Na2SO4 + H2O

A. 1.6 L
B. 1.2 L
C. 0.90 L
D. 0.60 L

Answers

Answer 1

Answer:

The answer is D. 0.60 L

Explanation:

The balanced reaction equation including states of matter is;

H₂SO₄(aq) + 2NaOH(aq) → Na₂SO₄(aq) + 2H₂O(l)

More simple:

H2SO4 + 2NaOH → Na2SO4 + 2H2O

Now, we can see from this reaction equation that the mole ratio of NaOH to H2SO4 is 2:1

Number of moles of H2SO4 reacted = 1.2 moles

Hence;

2 moles of NaOH reacts with 1 mole of H2SO4

x moles of NaOH reacts with 1.2 moles of H2SO4

x = 2 * 1.2/1 = 2.4 moles of NaOH

Recall that;

Number of moles = Concentration * Volume

Volume = number of moles/concentration

Volume of NaOH  is obtained from;

Volume = 2.4 moles/ 4.0 M

Volume =  0.60 L

Answer 2
The answer to this is D

Related Questions

Make a generalization about the importance of tools to science.

Answers

Scientists use special tools to do their work. They gather data, or information, as they seek to learn about the world. In order to solve problems they must record data that is accurate and organized. This is an important part of the scientific method.
tools are important of science, because of how and when they are used. we use them for many things especially experiments.

Which property of manganese dioxide helps it turn hydrogen peroxide into water faster than it would without it?

A. Manganese dioxide is an acid.
B. Manganese dioxide is a catalyst.
C. Manganese dioxide is highly reactive.
D. Manganese dioxide is used up very fast.

Answers

Answer:

B is the correct answer.

......Hopefully it it helpful.......

The property of manganese dioxide helps it turn hydrogen peroxide into water faster than it would without it is Manganese dioxide is a catalyst.

Hence, option B is correct answer.

What is Catalyst in a chemical reaction ?

A catalyst in a chemical reaction is substance that increases the rate of a chemical reaction.

The reaction of manganese dioxide with hydrogen peroxide is

MnO₂ + H₂O₂ → H₂O + O₂

Now, lets check all options one by one.

Option (A): Manganese dioxide is an acid.

Manganese dioxide (MnO₂) is weak acid and its solubility is very less.

So, it is incorrect option.        

Option (B): Manganese dioxide is a catalyst.

Adding a catalyst to a reaction it speeds up the rate of reaction and in the absence of catalyst the reaction proceed slowly.  

So, it is correct option.

Option (C): Manganese dioxide is highly reactive.

Manganese dioxide is unstable. Manganese dioxide is is an inorganic compound. Manganese dioxide is oxidizing agent.

So, it is incorrect option.

Option (D): Manganese dioxide is used up very fast.

Manganese dioxide acts as catalyst for decomposition of H₂O₂ that means it is not consumed in the chemical reaction.

So, it is incorrect option.

Thus, from the above conclusion we can say that Manganese dioxide is a catalyst is the property of manganese dioxide helps it turn hydrogen peroxide into water faster than it would without it.

Hence, option B is correct answer.

Learn more about Catalyst here: https://brainly.com/question/12507566

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