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Erica Higgins
Chemistry
4 April, 19:16
How many molecules are in 68.0 g of H2S
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Chase
4 April, 19:28
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The correct answer is 12.044 * 10²³ molecules.
The molecular mass of H₂S is 34 gram per mole.
Number of moles is determined by using the formula,
Number of moles = mass/molecular mass
Given mass is 68 grams, so no of moles will be,
68/34 = 2 moles
1 mole comprises 6.022 * 10²³ molecules, therefore, 2 moles will comprise = 6.022 * 10²³ * 2
= 12.044 * 10²³ molecules.
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