Calculate the number of molecules of Ca0 present in 28gm of Ca0 also calculate number of calcium present in it. ( Mass number, ca=40 , o=16 )
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Explanation:
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Given that
Mass of CaO, W = 2.8g
Moles mass of CaO, M = 56g/moles
Number of mass of CaO, n = W/m = 2.8/56 moles
=0.05moles
Number of molecules, N = n×Na
=0.05×6.022×10^23 = 3.011×10^22 molecules
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