calculate the number of molecule in 2 drop of water if one drop of water equals to 0.9 gram
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Answer:
Avagadro Number/10
Explanation:
Weight of 2 drops = 2 × 0.9g = 1.8grams
No. of moles = mass/molar mass = 1.8g/18g = 1/10 moles
Hence no. of molecules = no. of moles × Avagadro Number = 1/10× Avagadro Number
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