Question

1.convert into mole a)12gm of oxygen gas b)20gmof water
2.calcolate the molar mass of a ) c2h2b)hcl​

Answer 1

Answer:

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12gm of oxygen gas :

$\frac{12}{16}$ = 0.75mole

20gm of water :

$\frac{20}{18}$ = 1.11mole

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Molar mass of C2H2 :

= 2 × 12 + 2 × 1

= 26g

Molar mass of HCl :

= 1 ×1 + 35.5 × 1

=. 1 + 35.5

= 36.5g

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Answer 2

Explanation:

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