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alishabhappy1
19.01.2021 •
Chemistry
Convert 2.4 X 10^28 Molecules of H3PO4 into Grams.
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Ответ:
3906966 g
Explanation:
The number of molecules contained in a substance is given by the formula:
number of molecules = number of mole * Avogadro constant.
Given that:
number of molecules = 2.4 * 10²⁸ molecules, Avogadro constant = 6.02 * 10²³ mol⁻¹.
Substituting gives:
2.4 * 10²⁸ molecules = number of moles * 6.02 * 10²³ mol⁻¹
number of moles = 2.4 * 10²⁸ molecules / 6.02 * 10²³ mol⁻¹
number of moles = 39867 moles
The molar mass of H₃PO₄ = (1 * 3) + (31 * 1) + (16 * 4) = 98 g/mol
Hence:
mass of H₃PO₄ = molar mass of H₃PO₄ * number of moles
mass of H₃PO₄ = 98 g/mol * 39867 moles
mass of H₃PO₄ = 3906966 g
Ответ:
cux
Explanation:
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