natalie01
09-24-2009, 05:21 PM
Hello,
I need some help with figuring out this question. I sort of forget chemistry formulae and concepts, so at the moment i don't exactly know how to go about solving this question...
here it is:
A 20.0 mL solution of 0.200 M Na2SO4 is added to 10 mL water sample containing and unknown concentration of BaCl2 that was concentrated by 100 fold. After filtration of the solution, 0.78 g of the insoluble BaSO4 is obtained.
1) Provide a balanced chemical equation
2) Determine the concentration of Ba^2+ from the sample taken.
Help is much appreciated :) Thank-you!
I need some help with figuring out this question. I sort of forget chemistry formulae and concepts, so at the moment i don't exactly know how to go about solving this question...
here it is:
A 20.0 mL solution of 0.200 M Na2SO4 is added to 10 mL water sample containing and unknown concentration of BaCl2 that was concentrated by 100 fold. After filtration of the solution, 0.78 g of the insoluble BaSO4 is obtained.
1) Provide a balanced chemical equation
2) Determine the concentration of Ba^2+ from the sample taken.
Help is much appreciated :) Thank-you!