What volume of 0416m mgno 3 2 should be added to 255

9. What volume of 0.416M Mg(NO
3
)
2
should be added to 255 mL of 0.102 M KNO
3
to
produce a solution with a concentration of 0.278 M NO
3
– ions? Assume volumes are
additive. (4 points)
10. Describe how to prepare 1.00 L of 0.646 M HCl solution, starting with 2.00 M HCl solution.
(4 points)
4
Copyright © 2014 by Thomas Edison State College. All rights reserved.

11. Calculate the volume in mL of a 1.420 M NaOH solution required to titrate the following
solutions: (9 points)
a. 25.00 mL of a 2.430 M HCl solution
b. 25.00 mL of a 4.500 M H
2
SO
4
solution
c. 25.00 mL of a 1.500 M H
3
PO
4
solution
12. A 325 mL sample of solution contains 25.3 g of CaCl
2
. (4 points)
a. Calculate the molar concentration of Cl – in the solution.
5
Copyright © 2014 by Thomas Edison State College. All rights reserved.