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VCE Stuff => VCE Science => VCE Mathematics/Science/Technology => VCE Subjects + Help => VCE Chemistry => Topic started by: lanvins on March 15, 2008, 02:22:41 pm

Title: i think i may have found a misprint in Heinemann
Post by: lanvins on March 15, 2008, 02:22:41 pm

for those of u using heinemann on page 46 question 28 for f;  is the table suppose to say anhydrous calcium carbonate or is it anhydrous sodium carbonate as they have it, right?

i need it because i need to find the percentage of calcium carbonate in the sample

Title: Re: i think i may have found a misprint in Heinemann
Post by: iamdan08 on March 15, 2008, 03:03:24 pm

Didnt you find the mol of calcium carbonate  in e(0.009330) then you can calculate mass of calcium carbonate (0.9339g) and so on?

Title: Re: i think i may have found a misprint in Heinemann
Post by: lanvins on March 15, 2008, 03:25:31 pm

yea but on the second line of the table it says anhydrous sodium carbonate rather than anhydrous calcium carbonate.

Title: Re: i think i may have found a misprint in Heinemann
Post by: iamdan08 on March 15, 2008, 03:53:10 pm

Oh i see what you mean. I think you are right. That second line should say "mass of limestone  and watch glass.".