ATAR Notes: Forum
VCE Stuff => VCE Science => VCE Mathematics/Science/Technology => VCE Subjects + Help => VCE Chemistry => Topic started by: thatdumbstudent on September 02, 2019, 06:55:02 pm
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So we were doing a titration using sodium carbonate and adding hcl to it and I am stuck on question 4...
3. Using the mole relationship from your equation and the values obtained from question 2, calculate the amount, in mole, of hydrochloric acid used in each titration. Calculate the average amount, in mol, of hydrochloric acid used (4 marks).
4. Using the average answer obtained above and the mean titre, calculate the concentration of the hydrochloric acid in mol/L (1 mark).
so i got the answer to question 3 already but for question 4, my mean titre is 15.16ml and the average mol I got was 0.286 so I thought I could just substitute this into the formula c=n/v in which I got about 19 mol... but that just doesn't look right so I'm wondering where I went wrong? thanks!
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So we were doing a titration using sodium carbonate and adding hcl to it and I am stuck on question 4...
3. Using the mole relationship from your equation and the values obtained from question 2, calculate the amount, in mole, of hydrochloric acid used in each titration. Calculate the average amount, in mol, of hydrochloric acid used (4 marks).
4. Using the average answer obtained above and the mean titre, calculate the concentration of the hydrochloric acid in mol/L (1 mark).
so i got the answer to question 3 already but for question 4, my mean titre is 15.16ml and the average mol I got was 0.286 so I thought I could just substitute this into the formula c=n/v in which I got about 19 mol... but that just doesn't look right so I'm wondering where I went wrong? thanks!
help :( :( :(