calculate the mass of potassium chlorate required to produce 35 g of potassium chloride on complete decomposition
Answers
Answered by
3
Answer: 57.55 g
Explanation
1. Write the balanced equation
2. Calculate the atomic mass
3. From the equation we can find that to produce 149 g of KCL we need 245 g of .
Hence, 149 g of is produced by g of .
1 g of is produced by g of .
35 g of is produced by g of .
Answered by
8
Reaction :
Gram mass of 2 KClO₃
K = 39
Cl = 35.5
O = 16
2 ( 39 + 35.5 + 48 )
= > 2 × 122.5
= > 245
This means that 245 g of potassium chlorate was used .
Now mass of potassium chloride is 2 ( 39 + 35.5 )
= > 2 × 74.5
= > 149 g
Hence 149 g of KCl is produced per 245 g .
1 g is produced per 245 / 148 g
35 g is produced per 245 / 148 g × 35
= > 57.939 g
= > 57.94 g
The mass will be 57.94 g
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