Chalk contains 40%calcium, 12%carbon and rest oxygen. What is the amount of oxygen in 8kg of chalk
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Answer:
3.84kg
Step-by-step explanation:
Chalk is caco3
It's weight is 100g in which
Calcium is 40g(40%)
Carbon is 12g(12%)
Oxygen is 48g(48%)
So 100g chalk has 48g oxygen so
8000g chalk will have how much
That is=8000*48/100
=3840g
Which is 3.84kg
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