Dilution and Molarity Concepts

Dilution and Molarity Concepts

Assessment

Interactive Video

Chemistry, Mathematics, Science

9th - 12th Grade

Hard

Created by

Patricia Brown

FREE Resource

The video tutorial explains how to solve a dilution problem involving sulfuric acid. It introduces the problem of diluting an 18.0 molar sulfuric acid solution to a 0.50 molar solution. The tutorial covers the use of the dilution equation, which involves initial and final molarity and volume. It demonstrates the calculation of the final volume and the amount of water needed to achieve the desired concentration, concluding that 350 milliliters of water must be added to the initial solution.

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9 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the initial molarity of the sulfuric acid solution in the problem?

10.0 molar

360 molar

18.0 molar

0.50 molar

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which equation is used to solve the dilution problem?

Dilution Equation

Avogadro's Law

Boyle's Law

Ideal Gas Law

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does 'M' stand for in the dilution equation?

Mass

Molarity

Moles

Milliliters

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How do you calculate the final volume using the dilution equation?

Divide initial volume by final molarity

Add initial volume to final molarity

Multiply initial molarity by initial volume and divide by final molarity

Multiply initial molarity by final molarity

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the calculated final volume of the solution?

370 milliliters

360 milliliters

350 milliliters

10 milliliters

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Why do we subtract the initial volume from the final volume?

To find the concentration of the solution

To calculate the amount of water to add

To determine the amount of acid needed

To find the total volume of the solution

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How much water needs to be added to achieve the desired concentration?

370 milliliters

10 milliliters

350 milliliters

360 milliliters

8.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the final concentration of the sulfuric acid solution?

18.0 molar

10.0 molar

0.50 molar

360 molar

9.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the purpose of diluting the sulfuric acid solution in this problem?

To increase the molarity

To prepare a solution for a lab

To change the color of the solution

To decrease the volume