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OpenStudy (anonymous):
calculate the no. of molecules in a drop of water weighing 0.5gm (1.204 * 10 ^{21})
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OpenStudy (chmvijay):
can u tell molar mass of H2O
OpenStudy (anonymous):
molecules find karna ha!!
OpenStudy (chmvijay):
haaa malum hai lekin aap muje molar mass of water batayenge kyaaa
OpenStudy (chmvijay):
18 gram of H2O contains 6.023 *10^23 H2O molecules 0.5 gram of H2O contains = 6.023*0.5 /18 =
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Use Hvap of water = 40.7 kJ/mol, c of water = 4.184 J/g.u00b0C, and molar mass of HO = 18.
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