1. © 2013 Pearson Education, Inc. Chapter 8, Section 5 1 Learning Check What is the molarity (M) of a solution prepared by diluting 10.0 mL of 2.7 M NaOH to 60.0 mL?

2. © 2013 Pearson Education, Inc. Chapter 8, Section 5 2 Solution What is the molarity (M) of a solution prepared by diluting 10.0 mL of 2.7 M NaOH to 60.0 mL? Step 1 Prepare a table of the concentrations and volumes of the solutions. Analyze the Problem.

3. © 2013 Pearson Education, Inc. Chapter 8, Section 5 3 What is the molarity (M) of a solution prepared by diluting 10.0 mL of 2.7 M NaOH to 60.0 mL? Step 2 Rearrange the dilution expression to solve for the unknown quantity. Step 3 Substitute the known quantities into the dilution expression and calculate. Solution

4. © 2013 Pearson Education, Inc. Chapter 8, Section 5 4 Guide to Calculations Involving Solutions in Chemical Reactions

5. © 2013 Pearson Education, Inc. Chapter 8, Section 5 5 Learning Check How many liters of 3.00 M HCl are needed to completely react with 4.85 g of CaCO 3 ?

6. © 2013 Pearson Education, Inc. Chapter 8, Section 5 6 Solution How many liters of 3.00 M HCl are needed to completely react with 4.85 g of CaCO 3 ? Step 1 State the given and needed quantities. Analyze the Problem.

7. © 2013 Pearson Education, Inc. Chapter 8, Section 5 7 Solution How many liters of 3.00 M HCl are needed to completely react with 4.85 g of CaCO 3 ? Step 2 Write a plan to calculate the needed quantity or concentration. mass molar moles mole–mole moles molarity liters of CaCO 3 mass of CaCO 3 factor of HCl HCl of HCl

8. © 2013 Pearson Education, Inc. Chapter 8, Section 5 8 Solution How many liters of 3.00 M HCl are needed to completely react with 4.85 g of CaCO 3 ? Step 3 Write equalities and conversion factors including mole–mole and concentration.

9. © 2013 Pearson Education, Inc. Chapter 8, Section 5 9 Solution How many liters of 3.00 M HCl are needed to completely react with 4.85 g of CaCO 3 ? Step 3 Write equalities and conversion factors including mole–mole and concentration.

10. © 2013 Pearson Education, Inc. Chapter 8, Section 5 10 Solution How many liters of 3.00 M HCl are needed to completely react with 4.85 g of CaCO 3 ? Step 4 Set up the problem to calculate the needed quantity or concentration.

11. © 2013 Pearson Education, Inc. Chapter 8, Section 5 11 Learning Check If 22 mL of 0.10 M MgCl 2 is needed to completely react 15 mL of AgNO 3 solution, what is the molarity of AgNO 3 ?

12. © 2013 Pearson Education, Inc. Chapter 8, Section 5 12 Solution If 22 mL of 0.10 M MgCl 2 is needed to completely react 15 mL of AgNO 3 solution, what is the molarity of AgNO 3 ? Step 1 State the given and needed quantities. Analyze the Problem.

13. © 2013 Pearson Education, Inc. Chapter 8, Section 5 13 Solution If 22 mL of 0.10 M MgCl 2 is needed to completely react 15 mL of AgNO 3 solution, what is the molarity of AgNO 3 ? Step 2 Write a plan to calculate the needed quantity or concentration. volume molarity moles mole–mole moles of MgCl 2 MgCl 2 of MgCl 2 factor of AgNO 3

14. © 2013 Pearson Education, Inc. Chapter 8, Section 5 14 Solution If 22 mL of 0.10 M MgCl 2 is needed to completely react 15 mL of AgNO 3 solution, what is the molarity of AgNO 3 ? Step 3 Write equalities and conversion factors including mole–mole and concentration.

15. © 2013 Pearson Education, Inc. Chapter 8, Section 5 15 Solution If 22 mL of 0.10 M MgCl 2 is needed to completely react 15 mL of AgNO 3 solution, what is the molarity of AgNO 3 ? Step 4 Set up the problem to calculate the needed quantity or concentration.