Question #cb30d

1 Answer
Jun 2, 2017

165.6g

Explanation:

Number of moles of NaNO_3 in 85g = 85/85 = 1 mole

PbO + 2NaNO_3 rarr Pb(NO_3)_2 + Na_2O

2 moles of NaNO_3 required to react with PbO to form Pb(NO_3)_2. Therefore, 0.5 moles of Pb(NO_3)_2 are produced.
Molar mass of Pb(NO_3)_2 = 331.2g
Therefore, mass of Pb(NO_3)_2 produced = 331.2/2 = 165.6g