Which of the following is the correctly balanced chemical equation for the reaction of Ca(OH)2 and HNO3?
1 answer:
Explanation:
The reaction between calcium hydroxide and nitric acid is as follows.
Number of reactant atoms are as follows.
- Ca = 1
- O = 4
- H = 3
- N = 1
Number of product atoms are as follows.
- Ca = 1
- O = 4
- H = 2
- N = 3
To balance the given chemical equation, multiply by 2 on reactant side and multiply
by 2 on the product side.
Therefore, the balanced chemical equation will be as follows.
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The given question is incomplete. The complete question is :
Gaseous butane reacts with gaseous oxygen gas to produce gaseous carbon dioxide and gaseous water . If 1.31g of water is produced from the reaction of 4.65g of butane and 10.8g of oxygen gas, calculate the percent yield of water. Be sure your answer has the correct number of significant digits in it.
Answer: 28.0 %
Explanation:
To calculate the moles :
According to stoichiometry :
13 moles of require 2 moles of butane
Thus 0.34 moles of will require=
of butane
Thus is the limiting reagent as it limits the formation of product and butane is the excess reagent.
As 13 moles of give = 10 moles of
Thus 0.34 moles of give =
of
Mass of
The percent yield of water is 28.0 %