Find the molecular mass of the gas which is formed when acetic acid reacts with sodium bicarbonate $(N a H C O_{3})$

32 g

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40 g

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44g

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48g

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Solution

The correct option is C
44g

$C H_{3} C O O H + N a H C O_{3} ⟶ C H_{3} C O O N a + H_{2} O + C O_{2}$

When acetic acid reacts with sodium bicarbonate, an effervescene is seen due to the evolution of carbondioxide $(C O_{2})$ gas.

Molecular Mass of $C O_{2}$ = Mass of C + $2 \times$ mass of 0

$= 12 g + 2 \times 16 g$

$= 12 g + 32 g$

$= 44 g$

Hence, the correct option is C

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