calculate number of electrons present in 9.5g of PO4-3
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Answered by
24
9.5grams of PO₄⁻³ indicates 0.1 moles.
Number of electrons in a molecule of PO₄⁻³ = 15 + 4(8) + 3 = 50 electrons
Number of electrons in 0.1 moles of PO₄⁻³ = 0.1 x 50 x Avogadro number
= 5 x 6 x 10²³
= 3 x 10²⁴ electrons
Number of electrons in a molecule of PO₄⁻³ = 15 + 4(8) + 3 = 50 electrons
Number of electrons in 0.1 moles of PO₄⁻³ = 0.1 x 50 x Avogadro number
= 5 x 6 x 10²³
= 3 x 10²⁴ electrons
Answered by
1
Answer:
Explanation:
Moles of PO4^-3 = Mass in g/molar mass of PO4^-3
= 9.5/31 + 4 × 16
= 9.5/95
= 0.1 mole
Number of molecules = mole × avogadro number
= 0.1 × 6.022 × 10^23
= 6.022 × 10^22
1 molecule of PO43− contains 15 + 4 × 8 + 3 = 50 electron
So,
6.022 × 10^22 contains
= 50 × 6.022 × 10^22
= 301.1 × 10^22 electrons
HOPE ITS HELP.....
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