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Calculate the number of moles in 25 gm o...

Calculate the number of moles in 25 gm of calcium carbonate.

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The correct Answer is:
0.25 mole
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  9. fill up the gap : 2 mole of nitrogen occupies ml at STP.

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  10. Avagadro's number of helium weight how many grams ?

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  11. What volume of CO2 is liberated at STP from 0.1 mole of CaCo3?

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  18. How many moles of nitrogen are present in 560 cc of it at STP.

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