[lily_m]

Hello everyone. Im new to this forum and im in my first year of college and i have not studied chemistry before. I have a problem with my chemistry lab report. The experiment (Analysis of an acid lavatory cleaner) was to titrate 25ml of NaHSO4 against 0.1M of NaOH. After i did three titrations, the average volume of NaOH used was 29.167mls. One of the questions was to work out the % of active ingredient, NaHSO4, in the sample. I have calculated the number of moles of NaHSO4 which is 0.0029167, im just not sure how to work out the percentage. Please help 

[Borek]

What is percentage definition?

http://www.chembuddy.com/?left=concentration&right=mass-percentage

It doesn't matter whether we are talking about solution or mixture, definition is almost the same.

Can you tell what you need? What you have? How to convert known to needed?

[lily_m]

Thanks a million. I really appreciate the help