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Reactivity with Halogens and Hydrogen (Group 2)

On Thermal de...

Question

On Thermal decomposition of 600 gram of limestone 44.8 litre of CO2 gas is produced at STP the percentage purity of limestone will be

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Q. Calculate the amount of

C a C O_{3}

in grams having percentage purity

25 %

0.56

C O_{2}

at STP on heating?

10 g

of limestone on heating produces

4.2 g

C a O

. the percentage purity of

C a {C O}_{3}

in limestone is:

[Atomic mass of

C a =

40

Q. What will be the volume of

C O_{2}

at STP (atm) obtained on heating 10 grams of 90% pure limestone?

Q. What volume of

C O_{2}

(measured at STP) is obtained on heating 10 grams of 90% pure limestone?

Q. What amount of

N a N O_{3}

(in grams) that has a percentage purity of 30% produces 0.56 litre of

O_{2}

at STP (atm) on decomposition?
Given reaction:

2 N a N O_{3} \to 2 N a N O_{2} + O_{2}

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Reactivity with Halogens and Hydrogen (Group 2)

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