Question

What is the total volume of the solution after adding 3.60 g KCl to 75.0 ml of 0.210 M CaCl2 solution?

a) 75.0 ml
b) 78.6 ml
c) 150.0 ml
d) 153.6 ml

Answer 1

The total volume of the solution after adding 3.60 g KCl to 75.0 ml of 0.210 M CaCl2 solution is 78.56 ml.

Step-by-step explanation:

The total volume of the solution after adding 3.60 g KCl to 75.0 ml of 0.210 M CaCl2 solution can be calculated using the formula:

V1M1 = V2M2

Where V1 and M1 are the initial volume and concentration of CaCl2 solution, V2 is the final volume, and M2 is the final concentration.

Plugging in the values, we have:

(75.0 ml)(0.210 M) = (V2)(0.210 M + (3.60 g/110.98 g/mol))

V2 = 78.56 ml