Question

A 15.5g sample of x combines with a 42.5g sample of y to form the compound xy3 what are the masses of the reactants and products

Answer 1

Answer:

Explanation:

apply poac for x

moles of x = moles of xy3

moles of y = 3 moles of xy3

moles of x / moles of y  = 1/3

3 moles of x = moles of y

46.5/molecular mass =  42.5 / molecular mass

let molecular mass of x = k

then molecular mass of y = 0.913k

moles of  x = 15.5/k

moles of y = 42.5/0.913k

moles of y = 46.54/k

x+3y=xy3

if you see both are limiting

and masses of product = 15.51/k

Answer 2

The answer is 58 grams

GIVEN

A 15.5g sample of x combines with a 42.5g sample of y to form the compound xy₃

TO FIND

The masses of the reactants and products

SOLUTION

The above problem can be simply solved as follows;

Mass of x = 15.5 grams

Mass of y = 42.5 grams

According to law of conservation of mass;

Mass of reactant = Mass of product

Now,

Total mass of reactant = 15.5 + 42.5 = 58 grams

Therefore,

Mass of product = 58 grams

Hence, The answer is 58 grams

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