The - composition of O and H present in monosodium phosphate is respectively-A- 23-18 - 25-83 -B- 19-17 - 53-33 - 23-18 - 53-33 -D- 53-33 - 1-66 -

The correct option is D 53.33%, 1.66%Molecular formula =NaH_2PO_4 Molecular mass =23+(2× 1)+31+(4× 16)=120 amu ...

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Standard XII

Chemistry

Percentage Composition

The % composi...

Question

The % composition of $O$ and $H$ present in monosodium phosphate is respectively:

53.33 %, 1.66 %

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23.18 %, 25.83 %

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19.17 %, 53.33 %

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23.18 %, 53.33 %

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Solution

The correct option is A $53.33 %, 1.66 %$
Molecular formula $= N a H_{2} P O_{4}$
Molecular mass $= 23 + (2 \times 1) + 31 + (4 \times 16) = 120 amu$
% composition of $O = (64 / 120) \times 100 = 53.33 %$
% composition of $H = (2 / 120) \times 100 = 1.66 %$

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The % composition of O and H present in monosodium phosphate is respectively:

The correct option is A 53.33%, 1.66%Molecular formula =NaH2PO4 Molecular mass =23+(2×1)+31+(4×16)=120 amu % composition of O=(64/120)×100=53.33% % composition of H=(2/120)×100=1.66%

The % composition of $O$ and $H$ present in monosodium phosphate is respectively:

The correct option is A $53.33 %, 1.66 %$
Molecular formula $= N a H_{2} P O_{4}$
Molecular mass $= 23 + (2 \times 1) + 31 + (4 \times 16) = 120 amu$
% composition of $O = (64 / 120) \times 100 = 53.33 %$
% composition of $H = (2 / 120) \times 100 = 1.66 %$