Chemistry, asked by ALIAKBAR007, 1 year ago

my dear sweet friendzzzzzz plzz help to solve this problem Q.NO:13,14,15,16,17?

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Answered by siril
1
13)   (a) & (c)-CH is the empirical formula.
        (b) & (d)-CH₂O is the empirical formula.

14)Total mass of MgSO₄.7H₂O=246, mass of water=126

       % of water = (126 x 100)/246 = 51.2%

All the other questions are somewhat similar to this, find the % of each with respect to total mass.
By the way, calcium's atomic weight is 40.

                                                         
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