Copper metal was added to an aqueous solution of iodine to produce aqueous copper(I) iodide during a lab procedure. To collect the solid copper(I) iodide, students evaporated the water from the solution over a Bunsen burner. The mass of the solid was measured in the evaporating dish after it had cooled.
Mass of copper = 12.526 g
Mass of empty evaporating dish = 10.505 g
Mass of evaporating dish with product = 50.604 g

Calculate the theoretical yield of the product.
Calculate the experimental yield.
What is the percent yield of the reaction?

1 a

2 d

3 a

4 c

explanation:

20 drops hope this

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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