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Tresset [83]
3 years ago
11

2.How many neutrons does an atom of tungsten (W) have when its mass number is 185?​

Chemistry
1 answer:
solniwko [45]3 years ago
3 0

Answer:

110

Explanation:

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From: www.middleschoolchemistry.com

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First we have to find the number of moles in the given mass by dividing the mass by its molar mass as,

$\frac{450 g}{142.04 g/mol} =  3.2 moles

Now, we have to multiply the number of moles of Na₂SO₄ by the Avogadro's number, 6.022 × 10²³ formula units/mol, so we will get the number of formula units present in the given mass of the compound.

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