How many grams of phosgenite can be obtained from 10.0 g of PbO and 10.0 g of NaCl in the presence of excess water and carbon dioxide
3 answers
Do you have the equation?
unbalanced:
PbO+NaCl+H2O+CO2 yields Pb2Cl2CO3+NaOH
PbO+NaCl+H2O+CO2 yields Pb2Cl2CO3+NaOH
Balance the equation.
2PbO + 2NaCl + H2O + CO2 ==> (PbCl)2CO3 + 2NaOH. Check that to mae sure.
mols PbO = gram/molar mass
mols NaCl = grams/molar mass.
From PbO, convert to mols product.
That's mols PbO from above x (1/2) = ?
From NaCl, convert to mols product.
That's mols NaCl x 1/2 = ?
Most likely these two numbers will not be the same; the correct value in limiting reagent problems (which this is) is always the smaller value (and the reagent producing that value is the limiting reagent).
Take the smaller value and convert to grams product.
That's mols product x molar mass product = grams product.
2PbO + 2NaCl + H2O + CO2 ==> (PbCl)2CO3 + 2NaOH. Check that to mae sure.
mols PbO = gram/molar mass
mols NaCl = grams/molar mass.
From PbO, convert to mols product.
That's mols PbO from above x (1/2) = ?
From NaCl, convert to mols product.
That's mols NaCl x 1/2 = ?
Most likely these two numbers will not be the same; the correct value in limiting reagent problems (which this is) is always the smaller value (and the reagent producing that value is the limiting reagent).
Take the smaller value and convert to grams product.
That's mols product x molar mass product = grams product.
0 answers