Asked by Chay
                If the water temperature was 30.0C and the atmospheric pressure was 753 torr. What volume of hydrogen gas would you expect to  collect  if you reacted 0.083g of Ca metal with HCl?
            
            
        Answers
                    Answered by
            DrBob222
            
    Ca + 2HCl ==> H2 + CaCl2
mols Ca = grams/molar mass = ?
mols H2 = mols Ca from the equation.
Then use PV = nRT and
V = nRT/P. You know n, R, T. P is 753- vapor pressure H2O at 30 C. You look up v.p. H2O at 30 C in tables in your test. It will be approximately 30 torr.
    
mols Ca = grams/molar mass = ?
mols H2 = mols Ca from the equation.
Then use PV = nRT and
V = nRT/P. You know n, R, T. P is 753- vapor pressure H2O at 30 C. You look up v.p. H2O at 30 C in tables in your test. It will be approximately 30 torr.
                    Answered by
            broke
            
    .053
    
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