1) You have 53.4mL of 1.50M sulfuric acid solution; you need 1.00M sulfuric acid for your experiment. How many mL of 1.00 sulfuric acid can you make? a) 80.1mL b) 35.6mL c) 107mL d) 26.7mL 2) 100.0mL of 2.500M KBr solution is on hand. You dilute this to 0.5000M. What is the final volume? a) 20.00mL b) 125.0mL c) 250.0mL d) 500.0mL 3) A stock solution of 5.00M CaCl2 is available. How many mL are needed to make 500.0mL of 1.250M solution? a) 2000mL b) 125mL c) 200mL d) 250mL 4) You need 5.00L of 1.20M HCl; how many L of 2.50M HCl will you need to dilute? a) 2.40L b) 0.600L c) 0.417L d) 10.0L 5) What volume of 2.00M NaCl solution is needed to make 250.0mL of 0.125M NaCl solution? a) 4000mL b) 15.6mL c) 16.5mL d) 0.100mL 6) 1.50L of a 1.25M solution is diluted to a final volume of 2.25L. What is the resultant molarity? a) 2.70M b) 1.88M c) 2.50M d) 0.833M 7) 0.72L of a solution of unknown concentration is diluted to a final volume of 3.6L; the new concentration is 0.062M. What is the initial molarity? a) 41.8L b) 0.16L c) 0.31L d) 1.2L 8) You have 1.35L of 3.00M NaOH; you need 0.250M NaOH for your lab. What volume should you dilute your solution to? a) 16.2L b) 0.113L c) 0.556L d) 25.0L

Dilution Calculations Practice

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