lestion 22 of 23 > How many moles of NaCl, if mixed with excess Pb2+ ions...

Question

Question

Answer 1

Answer #1

Pb²⁺ + 2NaCl ----. PbCl₂ + 2Na⁺

mole of PbCl₂ = mass / molar mass

= 13.1 / 278

= 0.047 mol

mole ratio of NaCl to PbCl₂ is 2 : 1

mole of NaCl = 0.5 * 0.047 = 0.094 mol

Answer 2

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