Question
When a solution of potassium iodide is mixed with a solution of lead nitrate, a bright...
When a solution of potassium iodide is mixed with a solution of lead nitrate, a bright yellow solid precipitate forms Calculate the mass of the solid produced (molar mass = 461 g/mol) when starting with a solution containing 242.36 g of potassium iodide (molar mass = 166 g/mol), assuming that the reaction goes to completion. Give your answer to three significant figures 2KI (aq) Pb(NO3)2 (aq) » Pbl2 (s) 2KNO3 () g
Answers
Balancu enaction : Pb Iz (s) + 2 KNO3 (2) 2 KI (aq) + Pb (NO )₂ (ay) → Moles of ki man Holar man 242.369 moles of KI 2 166 g/mol - 1.46 mol roles of solid (Pb I) produced: - 1.46 0.73 mol Mass of solidi mols & moler man = 0.73 mol x 461 g/mol . 336.53 gram : 1337 ] g
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