Answer:
moles of calcium hydroxide= 21.75 mol
a) 43.5 mol
b) 7.25 mol
Explanation:
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A cube of copper has a temperature of 5°C. The cube is placed in a closed container whose internal temperature is 85°C. What wil
2 answers:
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Answer : The percent yield of the reaction is, 75.6 %
Solution : Given,
Mass of Pb = 451.4 g
Molar mass of Pb = 207 g/mole
Molar mass of PbO = 223 g/mole
First we have to calculate the moles of Pb.
Now we have to calculate the moles of
The balanced chemical reaction is,
From the reaction, we conclude that
As, 2 mole of react to give 2 mole of
So, 2.18 mole of react to give 2.18 mole of
Now we have to calculate the mass of
Theoretical yield of = 486.1 g
Experimental yield of = 367.5 g
Now we have to calculate the percent yield of the reaction.
Therefore, the percent yield of the reaction is, 75.6 %