In two separate experiments, 0.36g and 0.71g of chlorine combined with a metal X to give Y and Z respectively. An analysis showed that Y and Z contain 0.20g...

Assessment: JAMB UTME - Chemistry - 1991 Subject: Chemistry

Question 1 Report

In two separate experiments, 0.36g and 0.71g of chlorine combined with a metal X to give Y and Z respectively. An analysis showed that Y and Z contain 0.20g and 0.40g of X respectively. The data above represents the law of ?

multiple proportion

conservation of mass

constant composition

creciprocal proportion

Answer Details

0.36g of Cl combines with 0.2g of x

1g of Cl will combine with $\frac{1 \times 0.2}{0.32}$ = 0.56

0.71g of U combines with 0.49g of x

1g of U will combine with $\frac{1 \times 0.4}{71}$ = 0.56

Ratio 0.56 : 0.56 = 1:1

Read lesson note on Chemical Combination (JAMB)

Chemical Combination

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In two separate experiments, 0.36g and 0.71g of chlorine combined with a metal X to give Y and Z respectively. An analysis showed that Y and Z contain 0.20g...

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