Wednesday
April 23, 2014

Homework Help: Chem Problem

Posted by Student on Friday, March 1, 2013 at 9:51pm.

I need help solving this question, I have no idea what I'm supposed to do.


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 0.165 M in sodium chloride and 0.029 M in magnesium sulfate? Assume complete dissociation for electrolytes.

I know that the equation for osmosis is

pi= MRT, but how am I supposed to find pressure from that. do I use the r value of 0.018 because it's units include that of atm? Or do I solve for r?

Please help!

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

math - What strategy did you use in solving this problem? 22. Suppose that you ...
AP Chem - Sorry, I have one other question. How would I go about solving this ...
chemistry - This question I really don't get it. I tried tried tried to figure ...
Chem Problem - I need help solving this question, I have no idea what I'm ...
Chemistry - I need help in solving this problem: A certain substance has a heat ...
chem - If 0.120 moles of water are produced in the reaction H+(aq)+OH-(aq)-->...
beginning chemistry - The problem says indicate the the number of sig. figs. ...
PROBLEM SOLVING IN MATHEMATICS - The Andersons are buying a new home. They need ...
Math - Need help solving this problem. If there's an equation at the end, need ...
Psychology - Why is problem solving considered the highest level of mental ...

Search
Members