Question #49955

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Question #49955

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Answer 1 · 2017-07-24T02:43:32

1(M)

Explanation:

Here's explanation,
$200 m l$ $200ml$ contains $N H_{4} B r$ $NH_4Br$ $\to$ $->$ 0.2 mol
$1 m l$ $1ml$ contains $N H_{4} B r$ $NH_4Br$ $\to$ $->$ $\frac{0.2}{200}$ $0.2/200$ mol
$1000 m l$ $1000ml$ contains $N H_{4} B r$ $NH_4Br$ $\to$ $->$ $\frac{0.2}{200} \times 1000 = 1$ $0.2/200×1000=1$ mol
Molarity is the value of mole number containing in 1000ml of a solution.

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Question #49955

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