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प्रश्न
Calculate the number of moles of CO2 which contain 8.00 g of O2
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उत्तर
1 mole of CO2 contains O2 = 32g
So, CO2 having 8 gm of O2 has no. of moles = `8/32`
= 0.25 moles
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| Species Property | H2O | CO2 | Na atom | MgCl2 |
| No. of moles | 2 | - | - | 0.5 |
| No. of particles | - | 3.011×1023 | - | - |
| Mass | 36g | - | 115 g | - |
