(A) The molar mass of $H_3PO_4$ is given as $98 \ g/mol$.The formula for molar mass is: $3 \times \text{Atomic mass of } H + 1 \times \text{Atomic mas

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(A) The molar mass of $H_3PO_4$ is given as $98 \ g/mol$.The formula for molar mass is: $3 \times \text{Atomic mass of } H + 1 \times \text{Atomic mass of } P + 4 \times \text{Atomic mass of } O = 98 \ g/mol$.Given atomic masses: $H = 1 \ g/mol$,$O = 16 \ g/mol$.Substituting the values: $3(1) + P + 4(16) = 98$.$3 + P + 64 = 98$.$67 + P = 98$.$P = 98 - 67 = 31 \ g/mol$.

Class 11 Chemistry Some Basic Concepts of Chemistry Atomic, Molecular and Equivalent masses

Medium

If the molar mass of phosphoric acid $\left[ H_3PO_4 \right]$ is $98 \ g/mol$,calculate the atomic mass of $P$. (in $g/mol$)

A
$31$
B
$15$
C
$48$
D
$64$

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Some Basic Concepts of Chemistry

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Atomic, Molecular and Equivalent masses

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If the molar mass of phosphoric acid $\left[ H_3PO_4 \right]$ is $98 \ g/mol$,calculate the atomic mass of $P$. (in $g/mol$)

Similar Questions

The average molar mass of chlorine is $35.5 \ g \ mol^{-1}$. The ratio of $^{35}Cl$ to $^{37}Cl$ in naturally occurring chlorine is close to : (in $:1$)

The equivalent weight of a divalent metal is $31.82$. The weight of one atom of this metal is:

In a copper sulfate solution,$3.2 \ g$ of copper is displaced by $2.8 \ g$ of iron. If the equivalent mass of iron is $28$,what is the equivalent mass of copper?

$1.5 \ g$ of $CdCl_2$ was found to contain $0.9 \ g$ of $Cd$. Calculate the atomic weight of $Cd$.

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