The following reaction shows the products when sulfuric acid and aluminum hydroxide react. 2Al(OH)3 + 3H2SO4 - Al2(SO4)3 + 6H20
The table shows the calculated amounts of reactants and products when the reaction was conducted in a laboratory.
Initial Mass and Yield
Sulfuric Acid Aluminum Hydroxide
Initial Amount of Reactant
40 g
45 g
Theoretical Yield of Water from Reactant 14.699
31.15 g

law of conservation of matter

it would be b. 6co2 + 6h2o --> c6h12o6 + 6o2

a. the law of proportion states the combination of 2 atoms in a specific ratio to produce multiple compounds such as the given statement of question ‘1st compound contains 88.8 % cu ’ indicates 88.8 g of cu is present along with 11.2 g oxygen in 100 g of compound whereas the statement ‘2st compound contains 79.9 % cu ’ indicates 79.9 g of cu is present along with 20.1 g oxygen in 100 g of compound

1st compound contains 88.8 g cu

for cu

m = 63 g /mol

atomic % = 88.8 /63 = 1.42

for o

m = 16 g /mol

atomic % = 11.2 /16 = 0.7

b. the emperical formula of 1st compound is

cu1.4o0.7

cu2o