What is the [Cl-] in a 0.100 M solution of Calcium Chloride?

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What is the [Cl-] in a 0.100 M solution of Calcium Chloride?

2007-10-09 04:57:04 · 2 answers · asked by ccutestuff2001 2 in Science & Mathematics ➔ Chemistry

2 answers

Since the formula for calcium chloride is CaCl2, the concentration of Cl- ions is 0.200 M.

2007-10-09 05:02:19 · answer #1 · answered by hcbiochem 7 · 0⤊ 0⤋

Think of all questions of this type in terms of algebra.

[CaCl2] --------> Ca2+ + 2Cl-

Let CaCl2 be x, Ca2+ is also x, while Cl- is 2x.

Thus if the solution CaCl2, x, is 0.100M, then [Cl-] must be 2 times this amount.

2007-10-09 12:05:39 · answer #2 · answered by householdbleach 2 · 0⤊ 0⤋