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प्रश्न
Calculate the number of moles in 7g of nitrogen.
संख्यात्मक
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उत्तर
28g of nitrogen = 1mole
So, 7g of nitrogen = `1/28 × 7`
= 0.25 moles
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| Species Property | H2O | CO2 | Na atom | MgCl2 |
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