Question

Determine the molarity of each of the following solutions:

a. 2.34 mol KCl in 2.300 L of solution

b. 0.56 g H2SO4 in 2 L of solution

c. 20.45 g Al(NO3)3 in 2000 mL of solution

Answer 1

a) molarity $=\frac{2.34}{2.300}=1.017M$

b) molarity $=\frac{0.56}{98×2}=0.0029M$

c) molarity $=\frac{20.45}{223×2}=$ 0.046M