How many grams of sulphuric acid will be present in 0.25 mol of sulphuric acid? ( atomic mass of S = 32 u and O = 16 u respectively)
A
0.245
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B
2.45
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C
24.5
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D
49.0
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Solution
The correct option is C24.5 Using mole-mass interconversion, Number of moles = massmolar mass Molar mass of sulphuric acid=2+32+(4×16)=98g/mol Mass= number of moles×molar mass =0.25×98=24.5g