Question

Number of moles of 2M CaCl2 in 500 cm3 solution is
A) 1.0
B) 0.50
C) 0.25
D) 1.50
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Answer 1

Answer:

correct option is A 1.0 mol

Explanation:

2M means

there are 2 moles of CaCl2 in 1 L of solution

so,

1000ml of solution contains 2 mol

so, 1 ml of solution will contain- 2/1000 moles

so 500 ml of solution will contain - (2/1000) × 500

that is-- 1 mol

hare cm3 which is equal to ml