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Mole concept numerical problems with answer class9 - Weebly
Solution: Molecules Mass of one mole of C2 H6 = 30 g and Mass of one mole of CH4 =16 g we know that 1 mole of any substance contains 6.022 x 10^23 molecules Mass of 6.022 x 10^23 molecules of Methane = 16 g Mass of 1.5 ×10^20 molecules of methane = [16 / 6.022x10^23] x 1.5 ×10^20 = 3.98 x 10^3 g
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