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Join 15, subscribers and receive weekly updates on dog food recalls, savings alerts and nutrition advancements. Register Pet Food Forums. August 28, at 2: Heya I did this exact coursework last year. To work out the concentration of the solution you should have been given a weight of sodium carbonate and the amount of water it was dissolved in.
The formula of sodium carbonate is Na2CO3 so from that work out the relative formula mass by adding up 2 times therelative atomic mass of sodium, the relative atomic mass of carbon and 3 times the relative atomic mass of oxygen. Then you use the relative formula mass to work out how many moles of sodium carbonate were in the amount the was dissolved in the solution using the formula: Once you have worked this out then you can work out the concentration using the formula: To calculate the concentration of acid solution you first need to work out the average titre from your results.
Then you need to know how many moles of sodium carbonate are used in each titration. In mine i think 25cm3 of sodium carbonate was used each time. You can use the concentration formula again because you have worked out the conc. To work out the concentration its the number of moles divided by the volume To work out the number of moles its the mass of the substance used divided by the molar mass of the substance.
Acid or distilled water gets rid of any undesirable chemical compounds. Salters AS chemistry titration coursework? Please help with my A2 salters chemistry coursework!!!!!!!!!!!!!!!!!!!!
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