Question

Please answer all, thank you!

Part A

What volume of a 0.32 M Mg(NO3)2 solution contains 92 g of Mg(NO3)2?

Express your answer using two significant figures and L.

Part B

A 4.5 −L sample of a 5.7 M NaCl solution is diluted to 60 L .

What is the molarity of the diluted solution?

Express your answer using two significant figures.

Part C

How much of a 14.0 M HNO3 solution should you use to make 840.0 mL of a 0.290 M HNO3 solution?

Answer in mL

Part D

A 30.0 mL sample of an unknown HClO4 solution requires 50.3 mL of 0.101 M NaOH for complete neutralization.

What was the concentration of the unknown HClO4 solution? The neutralization reaction is:
HClO4(aq)+NaOH(aq)→H2O(l)+NaClO4(aq)

Part E

To what volume should you dilute 155 mL of an 8.60 M CuCl2 solution so that 60.0 mL of the diluted solution contains 5.9 g CuCl2?

Answer in mL

Part F

What is the molarity of an aqueous solution that is 5.69 % NaCl by mass? (Assume a density of 1.02 g/mL for the solution.)

Part G

Ocean water contains 3.5 % NaCl by mass.

How much salt can be obtained from 304 g of seawater?

Express your answer using two significant figures.

Answer 1