A chemist wants to calculate the amount of heat that is absorbed by a sample of copper as it is melted. Which constant should sh
2 answers:
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Answer : The theoretical yield of HCl is, 56.1735 grams
Explanation : Given,
Mass of = 60 g
Mass of = 37.5 g
Molar mass of = 117 g/mole
Molar mass of = 18 g/mole
Molar mass of = 36.5 g/mole
First we have to calculate the moles of and
.
Now we have to calculate the limiting and excess reagent.
The balanced chemical reaction is,
From the balanced reaction we conclude that
As, 1 mole of react with 3 mole of
So, 0.513 moles of react with
moles of
From this we conclude that, is an excess reagent because the given moles are greater than the required moles and
is a limiting reagent and it limits the formation of product.
Now we have to calculate the moles of .
As, 1 mole of react to give 3 moles of
So, 0.513 moles of react to give
moles of
Now we have to calculate the mass of .
Therefore, the theoretical yield of HCl is, 56.1735 grams