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CGP EDU Academic Team
Published on: August 13, 2026
How much NaNO 3 must be weighed out to make 50 ml of an aqueous solution containing 70 mg of Na + per mL?
Text Solution
Verified by ExpertsThe correct answer is:
D
Explanation : M. wt. of NaNO 3 = 85
70 mg of Na + are present in 1 mL
50 ml of solution contains 50 × 70 = 3500 mg = 3.5 g Na + ion
23 g of Na + are present in 85 g of NaNO 3
3.5 g of Na + are present in 
× 3.5 = 12.934 g of NaNO 3
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