Sunday
April 20, 2014

Homework Help: Chemistry

Posted by Sarah on Sunday, February 26, 2012 at 4:06pm.

These are what i used.
0.0375M sodium thiosulphate , 2.5% KI .47.2 ml copper sulphate solution.
the average volume of Na2S2O3 is 19.25 cm, i have already calculated the number of moles of thiosulphate which is 7.218 * 10-4 moles of Na2S2O3 and also the number of moles of I2 that reacted with S2O32 which was calculated to be 7.218*10^-4/2 = 3.609 * 10^-4

I have to do the calculations for :

The number of Cu2+ that reacted with I- to produce the number of moles of I2 above
The number of moles of Cu2+ in the volumetric flask
The concentration of Cu2+ in the stock solution

Any kind of help would be really appreciated!

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

Chemistry-iodometric titration - In an iodometric titration, excess potassium ...
Chemistry - 1. Hydrogen bromide(HBr) is a strong, highly corrosive acid and what...
Science - What is the scentific formula for Sodium Thiosulphate? What is the ...
Chemistry - Are the following chemicals light sensitive? 1) Potassium Iodide (KI...
Chemistry 12 - Hello fellow comrades, I was assigned the sulphur clock reaction ...
Repost-Chemistry -please help - Hi, sorry I missed out something. The titrant ...
Chemistry - please help - Please help to determine the (%w/w) benzoyl peroxide (...
Chemistry! - 1) does an increase in temperature increase the rate of bothe ...
Science : Chemistry - The concentration of dissolved chlorine in tap water can ...
organic chemistry - How would using sodium fluoroacetate instead of sodium ...

Search
Members