Homework Help: chemistry

Posted by casey on Sunday, June 12, 2011 at 4:58pm.

An aqueous solution is 22.0% by mass silver nitrate, AgNO3, and has a density of 1.22 g/mL. what is the molality of silver nitrate in the solution?

chemistry - DrBob222, Sunday, June 12, 2011 at 5:43pm
22.0% AgNO3 by mass means 22.0 grams AgNO3 per 100 g solution. That is equivalent to 220 g/1000g solution.
The 1000 g solution is made of 220 g AgNO3 + 780 g water.
How many moles AgNO3 in 220 g AgNO3. That will be 220/molar mass AgNO3 (approximately 1.3 moles.
molality = moles/kg solvent.
m = 1.3 moles/0.780 kg solvent = about 1.7 m.
Check my work.
chemistry - Brady, Monday, February 4, 2013 at 6:34pm
1.58

Answer this Question

Related Questions

Cemistry - A solution is 36% silver nitrate (AgNO3) by mass. The density of this...
Chemistry - Calculate the mass of silver nitrate, AgNO3, FW = 169.9 g/mole, ...
Chemistry - AgNO3 solutions are often used to plate silver onto other metals. ...
chemistry - An aqueous solution of silver nitrate contains 5.00 g of silver ...
chemistry - We add excess Na2CrO4 solution to 27.0 mL of a solution of silver ...
chemistry - Aqueous silver nitrate reacts with aqeous potassium iodide in a ...
chemistry - Have 250 mL of a 0.80 M solution of silver nitrate AgNO3 dissolved ...
Chemistry - You have 250 mL of a 0.80 M solution of silver nitrate AgNO3 (169.87...
chemistry - How many grams of copper will be required to replace silver from 200...
chemistry - How many grams of copper will be required to replace silver from 200...

For Further Reading

First Name:
School Subject:
Answer: