COMEDK · Chemistry · 1. Some Basic Concepts of Chemistry
The mass of precipitate formed when 50 mL of 16.9% aqueous solution of \(\text{AgNO}_3\) is mixed with 50 mL of 5.8% NaCl solution is------------g
[Ag = 107.8, N = 14, O = 16, Na = 23, Cl = 35.5]
- A \(14\)
- B \(6\)
- C \(5\)
- D \(7\)
Answer & Solution
Correct Answer
(D) \(7\)
Step-by-step Solution
Detailed explanation
Mass of \(\text{AgNO}_3\) in 50 mL of 16.9% solution = \(\dfrac{16.9}{100} \times 50 = 8.45\) g Molar mass of \(\text{AgNO}_3\) = \(107.8 + 14 + 3 \times 16 = 169.8\) g/mol Moles of \(\text{AgNO}_3\) = \(\dfrac{8.45}{169.8} \approx 0.0497\) mol Mass of NaCl in 50 mL of 5.8%…
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