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  4. What is the molecular mass (in amu) of the product ' X ' in the following unbalanced chemical equation? P 4+ underset text(Hot conc)HNO 3 longrightarrow X + NO 2+ H 2 O [Given At. Wt.: P=31 u , H=1 u , N =14 u, O =16 u ]

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Q. What is the molecular mass (in amu) of the product ' $X$ ' in the following unbalanced chemical equation?
$P _{4}+ \underset{\text{(Hot conc)}}{HNO _{3}} \longrightarrow X + NO _{2}+ H _{2} O$
[Given At. Wt.: $P=31\, u , H=1\, u , N =14\, u, O =16\, u$ ]

The p-Block Elements - Part2

Solution:

The balanced equation is
image
The product ' $X$ ' is $H _{3} PO _{4}$.
Molecular mass $=[3 \times 1]+[1 \times 31]+[4 \times 16]$
$=98\, u$