If 50.0 mL of 0.0870 M MgCl2 is needed to completely react 25.0 mL of AgNO3 solution, what is the molarity of the AgNO3 solution?

MgCl2(aq) + 2AgNO3(aq) ? 2AgCl(s) + Mg(NO3)2(aq)

A. 64.0

B. 0.00400

C. 0.348

Determine the volume(mililiters) required to prepare 200.0ml of a 0.250M KNO3 solution from a 6.00M KNO3

A. 8.3

B. 300

C. 48

How many grams of KCl are needed to prepare 300.0 mL of a 0.14 M KCl solution?

A. 75

B. 3.1

C. 4.2

In the summer, fish in a pond will tend to be found at lower depths in the water

True

False

Shells consisting of CaCO3 can be found in deep waters

True

False

In the reaction: NiCl2(aq) + 2NaOH(aq) -> Ni(OH)2(s) + 2NaCl(aq) ; How many mililiters of a 0.200M NaOH solution are needed to react with 18.0 ml of a 0.500M NiCl2 solution?

A. 90

B. 0.090

C. 45

D. 180