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Molecular Mass

If molecular ...

Question

If molecular mass and atomic mass of S are 256 and 32 respectively, then its atomicity is:

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Solution

The correct option is C
8

$Atomicity =$ $\frac{molecular mass}{Atomic mass} = \frac{256}{32} = 8$

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Find the atomicity of ozone if its atomic mass is 16 and its molecular mass is 48.

C u S O_{4} .5 H_{2} O

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N_{2} + 3 H_{2} \to 2 N H_{3}, i f E_{1} a n d E_{2}

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E_{1} - E_{2}

(a) Define atomic mass unit.

(b) Calculate the molecular mass of the following :

(i) $C u S O_{4} .5 H_{2} O$ (ii) $(N H_{4})_{2} C O_{3}$

(iii) $(N H_{2})_{2} C O$ (iv) $M g_{3} N_{2}$

Given atomic mass of Cu = 63.5, H = 1, O = 16, C = 12, N = 14, Mg = 24, S = 32

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