Need Homework Help!


Recommended Posts

Hi all :)

I need help with the following questions, some I have done but i wanna re-check my answers.....can u plz post FULL solutions (showing steps) to as many as possible :)

I dont have the answer key to these questions so I can re-check them :(

f1k1zq.png

and

f1k65u.png

Some info that is needed to do those questions :

Volume of 1mol/L KI = 10mL

Volume of 1mol/L HCl = 10 mL

Conc. of KIO3 = 0.1310 mol/L

Vol of KIO3 per titration = 5 mL

conc. of Na2S2O3 = 0.2 mol/L

Indicator : 2.00 mL

Avg Volume of Na2S2O3 = 14.50 mL

Edited by theavidgeek
Link to comment
Share on other sites

i honestly can't help you, but i can say that i wish my chem class was on that level of intelligence.

i'm just yearning to go on, but we've been stuck on scientific notation since school started 5 weeks ago....

Link to comment
Share on other sites

You should post your solutions to actually show you did some.

_--boocher

586733370[/snapback]

Sorry that will be cheating! Show some stuff that you attempted to do yourself!

586733381[/snapback]

sad u dont believe me :( Here is some :

for Q1 :

n = 0.2 mol/L x 0.0213 L = 4.26 x 10^-3 mol

i dont know how to do 2nd part of Q1

for Q2:

n = 0.131 mol/L x 0.0213 L = 2.79 x 10^-3 mol

I am working on Q3 - 5 atm but i am confused in them

Now do u believe me :( :cry:

Link to comment
Share on other sites

Isn't the point of questions like these that you are supposed to work them out on your own? I think science homework help is one thing, but directly answering homework, or exam type questions is cheating!

Not a very smart thing to do IMHO.

GJ

Link to comment
Share on other sites

This topic is now closed to further replies.
  • Recently Browsing   0 members

    • No registered users viewing this page.