What is the minimum pressure in kPa that must be applied at 25 °C to obtain pure water by reverse osmosis from water that is 0.2

Question

OLga [1]

4 years ago

6

What is the minimum pressure in kPa that must be applied at 25 °C to obtain pure water by reverse osmosis from water that is 0.2

27 M in sodium chloride and 0.078 M in magnesium sulfate? Assume complete dissociation for electrolytes.

Chemistry

1 answer:

Nadya [2.5K] · Answer 1 · 2022-02-13T03:49:46+03:00

This is an application of osmotic pressure which is one of the colligative properties of substances. The formula of osmotic pressure is expressed as P = MRT where M is molarity , R is the gas constant and T is temperature. When M is equal to a total of 0.305 M and T is equal to 298 K , P should be equal to 7.46 atm