Question

4. A student calculated that 18.9g of calcium hydroxide would be produced in a reaction
between calcium oxide and water. The actual yield of calcium hydroxide was 6.6g. Calculate
the percentage yield of the reaction.
Give your answer to 2 significant figures.
percentage yield =

Answer 1

Answer:

approximately 35% (to 2 significant figures)

Explanation:

Equation: % yield = [actual yield/theoretical (calculated) yield] x 100

=> (6.6/18.9) x 100 = 35%