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josmanu235
19.04.2021 •
Chemistry
How to find molar conductivity (in µS/M·cm) given 1.0M and a table of conductivity? I think I have to use kohlrausch's law but I am thrown off as we have to find the molar conductivity given multiple ones. I have only solved where there is one. Please help.
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Ответ:
4.71 × 10⁻¹⁴ g
Solution:
As we know,
141.93 g (1 mole) P₂O₅ contains = 6.022 × 10²³ (5) O atoms
Or,
141.93 g (1 mole) P₂O₅ contains = 3.011 × 10²⁴ O atoms
Therefore, we can say,
3.011 × 10²⁴ O atoms are contained by = 141.93 g of P₂O₅
So,
1.0 × 10⁹ (1 billion) O atoms will be contained by = X g of P₂O₅
Solving for X,
X = (1.0 × 10⁹ × 141.93 g) / 3.011 × 10²⁴
X = 4.71 × 10⁻¹⁴ g