hmwzandamlexanahxx hmwzandamlexanahxx

12-08-2016
Chemistry

contestada

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

Respuesta :

meerkat18 meerkat18

13-08-2016

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

Answer Link

Otras preguntas

The planet Mercury measures 4,879 kilometers from one side to the other. Earth measures 12,756 kilometers from one side to the other. What is the difference b

A car advertisement states that a certain car can accelerate from rest to 70km/h in 7 seconds. Find the car’s acceleration in m/s.

A stadium can hold 20,000 people when it is full. The table below shows the number of people that attended concerts at the stadium over a 3-day period. Day Nu

the difference of 17 and 5 times a number.

A car advertisement states that a certain car can accelerate from rest to 70km/h in 7 seconds. Find the car’s acceleration in m/s.

A sphere is dilated by a scale factor of 1.04 to create a new sphere. How does the volume of the new sphere compare with the volume of the original sphere?

The sum of two integers with different signs is 8. Give two possible integers that fit this description

If a Ferrari, with an initial velocity of 10 m/s, accelerates at a rate of 50 m/s2 , for 3 seconds, what was his ending velocity?

Why do geographers study human systems and human environment relationships?

Why do many different types of proteins exist even though there are a limited number of amino acids