Friday
April 25, 2014

Homework Help: Chemistry

Posted by Jenny on Friday, March 26, 2010 at 6:37pm.

Hi
I just need help with question (ii) and (iii), i know how to work out (i)

A solution is prepared by dissolving 0.2222 (0.0002) g of KIO3 in 50.00 (0.05) mL
(i) Calculate the molar mass of KIO3 with its associated uncertainty to the correct number of significant figures.
(ii) Find the molarity and its uncertainty with an appropriate number of significant figures.
(iii) Would the answer be affected significantly if the reagent were only 99.9% pure? Why or why not?
can anybody help out here

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

chemistry - A solution is prepared by dissolving 0.2222 (0.0002) g of KIO3 in ...
Chemistry - Calculate the molarity of Na2C204 solution prepared by dissolving 1....
Chemistry - Calculate the molarity of Na2C204 solution prepared by dissolving 1....
help me its urgent - Consider the following student errors. After each error, ...
physics- response to bobpursley - which is false? Consider the following ...
Chem II - A solution is prepared by dissolving 12.7 g Ca(NO3)2 in enough water ...
Chemistry - A lab assistant prepared a potassium chloride solution for her class...
chemistry - the Ka for acetic acid, HC2H3O2, is 1.8x10-5 at 25 deg. Celsius. In ...
Chemistry - Hi, I'm really having trouble this this chemistry problem. I have ...
Chemistry - Calculate the molarity of a solution prepared by dissolving 16 g of ...

Search
Members