The density of water is 1gm/ml. The volume of water drop is 1.8 ml. The number of molecules present in one drop are _______

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The density of water is 1gm/ml. The volume of water drop is 1.8 ml. The number of molecules present in one drop are ________ $\times 10^{22}$

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answer is 6.02.

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Detailed Solution

$d = \frac{weight}{volume}$

$weight = 1 \times 1.8 = 1.8$

$18 gr of H_{2} O - 6.023 \times 10^{23}$

$1.8 gr of H_{2} O$ Question Image

$x = 6.023 \times 10^{22} molecules$

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