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| 1. |
How many molecules are there in 2.30 grams of NH3 |
| Answer» EXPLANATION:AVOGADRO's NUMBER represents the number of units in one mole of any substance. This has the value of 6.022 x 10^23 units / mole. This number can be used to convert the number of atoms or molecules into number of MOLES. We calculate as follows:2.30 g NH3 (1 MOL / 17.03 g ) (6.022 x 10^23 molecules / 1 mol ) = 8.13x10^22 molecules | |