February 21, 2017

Homework Help: Chemistry

Posted by Carrie on Monday, November 29, 2010 at 4:12pm.

I was just wanting to make sure I did these right.
How many grams of solute are in each of the following solutions?

a.) 2.5 L of 3.0 M Al(NO3)3 solution.
for this one I get 1600 g of Al(NO3)3

b.) 75 ml of 0.5 M C6H12O6 solution.
and for this one I get 6.8g of C6 H12 O6

How many milliliters of a 12% (v/v) propyl alcohol solution would you need to obtain 4.5 ml of propyl alcohol.
I get 38 ml of solution

A student prepared a solution by dissolving 5 g of KI in enough water to give a final volume of 250 ml. what is the mass/volume percent (m/v) of KI solution.
I got 2% (m/v)KI

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