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5 November, 00:48

How many helium atoms are there in a helium blimp containing 537 kg of helium? express the number of helium atoms numerically?

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  1. 5 November, 03:37
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    To determine the number of helium atoms present in a given mass of helium, we first convert the mass into number of moles by dividing the atomic mass of helium which is 4 grams per mole. Then, we multiply the Avogadro's number which represents the number of units in one mole of any substance. This has the value of 6.022 x 10^23 units / mole. We do as follows:

    537 kg He (1000 g / 1 kg) (1 mol / 4 g) (6.022 x 10^23 atom / mol) = 8.08x10^28 atoms He
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