Question

2)49 g of sulphuric acid contains 01 g of hydrogen.16 9 of sulphur and rest oxygen Calculate the mass percentage composition of all the elements of sulphuric acid.

3)10^22 atoms of an element X are found to have a mass of 930 mg Calculate the molar mass of the element.

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Answer 1

Answer:

molar mass of h2so4= 98g/mol

mass of h2so4= 49g

mass of hydrogen = 01g

mass of sulphur = 16.9

so mass of oxygen = 49-(1+16.9)

now by formula

mass % of hydrogen = 1/49 ×100= .49%

by this way u can solve it

राम राम ♥️