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Density of water at room temperature is 1.0 g/cc. How many molecules are there in one drop of water if its volume is 0.1 cc?

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by (45.9k points)
 
Best answer

Mass of 0.1 cc water = 1 × 0.1 = 0.1 gram

\(\frac{0.1}{18}\) mol

Thus, number of molecules in one drop of water

\(\frac{0.1}{18}\) x 6.023 × 1023

= 0.033 × 1023 molecules

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