Chemistry - WorkSheet - Stoichiomentry- Example 02

Generic Stoichiometry Z(aq) + 2 Y(aq)  5 M(s) + T2(g) Given the following information: Z = 20 g/mol Y = 10 g/mol M = 6 g/mol T = 5 g/mol If you combine 100 g of solution Z with 1.8 x 1024 molecules of solution Y; how many moles of M will precipitate out of solution? What volume of T2 gas will be produced at STP? Z(aq) + 2 Y(aq)  5 M(s) + T2(g) 100 g 1.8 x 1024 molecules x mol /20 g/mol /6.02 x 1023 molecules/mol [2:5] "Have" 5 mol Z 3 mol Y "Need" 1.5 mol Z 10 mol Y [2:1] x mol M = 1.8 x 1024 molecules Y x (1 mol Y) x (5 mol M) = mol M (6.02 x 1023 molecules Y) (2 mol Y) x L T2 = 3 mol Y x (1 mol T2) x (22.4 L T2) = L T2 (2 mol Y) (1 mol T2)