Question

3. Calcium carbonate decomposes to give co2, gas according to equation

CaCO3=CaO+CO2​

Answer 1

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10th

Chemistry

Chemical Reactions and Equations

Types of chemical reactions

Calcium carbonate decompose...

CHEMISTRY

Calcium carbonate decomposes on heating to give calcium oxide and carbon dioxide. How much volume of CO

2

will be obtained at STP by thermal decomposition of 50 g of CaCO

3

?

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ANSWER

Chemical reaction involved is:

CaCO

3

→CaO+CO

2

Molar mass of CaCO

3

=40+12+16×3=100 g

According to the balanced reaction 100 g of CaCO

3

produces 1 mol of CO

2

i.e. 22.4 L at STP.

∴50 g CaCO

3

will produce

100

22.4

×50=11.2 L CO

2

at STP.

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Answer 2

Answer:

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Explanation:

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