how many grams of mg metal will give 1.2 grams hydrogen gas on complete reaction with H2so4 (mg= 24, H=1)
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Answer:
26.8 gram
Explanation:
Mg+H2SO4=MgSO4+H2
1 mole of Mg will burn to give 1 mole of H2.
No of moles of H2=mass/molar mass=1.2/1=1.2
No of moles of Mg will also be 1.2
no of mole= mass of the substance/molarmass
1.2=mass of Mg/24
mass of mg=24×1.2=26.8 gram
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