How to calculate the number of moles of HCl, when given density & molarity
Favorites|Homepage
Subscriptions | sitemap
HOME > > How to calculate the number of moles of HCl, when given density & molarity

How to calculate the number of moles of HCl, when given density & molarity

[From: ] [author: ] [Date: 12-07-11] [Hit: ]
I came back to edit this: Are you sure that the question is not based on a 3.0m solution of HCl?Or was the word molality used - not molarity ? Do you know the difference between these solutions?......
If you have 75.0 mL of 3.0 M HCl, how do you calculate the number of mols? *The density of a dilute aqueous solution is 1.01 g/mL.

Can someone please help me calculate the correct number of mols? I have now done all the calculations on my lab report TWICE using the wrong number of mols. What am I doing wrong?

-
For this calculation you do not require the density of the solution:

A 3.0M solution of HCl contains 3.0mol HCl in 1000 mL of solution
Mol HCl in 75mL of solution = 75/1000* 3.0 = 0.225 mol HCl

I came back to edit this:
Are you sure that the question is not based on a 3.0m solution of HCl?
Or was the word molality used - not molarity ?
Do you know the difference between these solutions?
1
keywords: of,HCl,molarity,density,given,How,when,to,number,moles,calculate,amp,the,How to calculate the number of moles of HCl, when given density & molarity
New
Hot
© 2008-2010 http://www.science-mathematics.com . Program by zplan cms. Theme by wukong .