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The reaction of calcium with water is re...

The reaction of calcium with water is represented by the equation
`Ca+2H_(2)OtoCa(OH)_(2)+H_(2)`
What volume of `H_(2)`, at STP would be liberated when 8 g of calcium completely reacts with water

A

`4480 cm^(3)`

B

`2240 cm^(3)`

C

`1120 cm^(3)`

D

`0.4 cm^(3)`

Text Solution

Verified by Experts

The correct Answer is:
A
`underset(40)(Ca)+2H_(2)OtoCa(OH)_(2)+underset(22400cm^(3))(H_(2))`
8f of calcium will produce `= (22400xx8)/(40)`
`=4480cm^(3)`
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