One mole of calcium ion

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2022-08-18

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One mole of calcium ion.

Is equivalent to two osmoles of calcium.
Has the same mass as two equivalents of calcium ion.
Is present in one litre of a normal solution of calcium ions.
Weighs 40 grams.
Depresses the freezing point of water to the same extent as one mole of sodium ion.

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safaTerkawi

2022-08-18

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A. False One mole of any ion in solution exerts one osmole of osmotic pressure.

B. True Because calcium is divalent.

C. False A normal solution has one equivalent weight of ion per litre.

D. True This is the atomic weight in grams.

E. True 1 osmole of a substance in 1 litre of water depresses the freezing point by 1.86°C.

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