Question

A solution consists of 42. 00 g of CoSO4 dissolves in 200. 0 mL of water. The molar mass of Cu is 63. 55 g/mol, the molar mass of S is 32. 07 g/mol, and the molar mass of O is 16. 00 g/mol. What is the molarity of the solution?

Answer 1

Answer:

1.3155M

Explanation:

molar mass of CuSO4

=63.55+32.07+16(4)

=159.62g/mol

n=mass/molar mass

n=42.00/159.62

n=0.2631mol

volume=200mL=0.2L

molarity=mole (n)/volume (v)

molarity=0.2631mol/0.2L

molarity=1.3155M