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O2 + CO2 are taken in mass ratio of 3:7 respectively. Find number of molecules of oxygen if 1020 molecules of CO2 are taken. |
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Answer» Given mass ratio of O2 and CO2 = \(\frac37\) ∴ there number of moles ratio will also = \(\frac37\) ∴ there number of molecules ratio also = \(\frac37\) Let say number of molecule of O2 = x and given number of molecule of CO2 = 1020 \(\therefore \frac{x}{10^{20}} = \frac37\) \(x = \frac 37 \times 10^{20}\) x = 4.3 x 1019 molecule of oxygen |
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