A semipermeable membrane separates two aqueous solutions at 20 °C. For each of the following cases, name the solution into which a net flow of water (if any) will occur. Assume 100% dissociation for electrolytes.

Solution A: 0.10M Al (NO3) 3 Solution B: 0.20M NaNO3 Solution A: 0.10M CaCl2 Solution B: 0.50M CaCl2 Solution A: 0.1M NaCl Solution B: 0.1M KBr Which group has a net flow towards solution A, net flow solution towards solution B, and no net flow?

Question

Bobby Doyle

Chemistry

15 November, 07:58

A semipermeable membrane separates two aqueous solutions at 20 °C. For each of the following cases, name the solution into which a net flow of water (if any) will occur. Assume 100% dissociation for electrolytes.

Solution A: 0.10M Al (NO3) 3 Solution B: 0.20M NaNO3 Solution A: 0.10M CaCl2 Solution B: 0.50M CaCl2 Solution A: 0.1M NaCl Solution B: 0.1M KBr Which group has a net flow towards solution A, net flow solution towards solution B, and no net flow?

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Ashly Wise · Answer 1

The first step is to multiply the molarity with the amount of ions in each formula.

For the first pair = (0.1 M) (4) = 0.4 M and (0.2 M) (2) = O. 4 M - > There is no net flow.

For the second pair = Since both are the same type of solution, solution A which has a lower concentration will flow to solution B which has a higher concentration.

For the third pair, (0.1 M) (2) = 0.2 M and (0.1 M) (2) = O. 2 M. There is no net flow since KBr and NaCL both have 2 ions.