Chemistry Problem? 50.?

Question

How many grams of NaAlO2 can be obtained from 4.46 g of AlCl3 according to the following reaction?

AlCl3(aq) + 4NaOH(aq) →
NaAlO2 (aq) + 3NaCl(aq) +2H2O(l)

Answer 1

This would be a mass-mass stoichiometry problem. Take the mass of AlCl3 given divided by the molar mass of AlCl3, then multiply it times the mole ratio of NaAlO2 to AlCl3 from your balanced equation, and then times the molar mass of NaAlO2.

4.46 g AlCl3 / 133.3 g/mol AlCl3 x 1 NaAlO2/ 1 AlCl3 x 81.97 g/mol NaAlO2 = 2.74 g NaAlO2