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- Megan Andrews - Mrs. Ball - Chemistry Coursework - 09/04 - 11 Alpha - -Investigation: Find the concentration of the unknown acid using Mg strips- Aim: My aim is to find out the concentration of the unknown acid marked X, using magnesium strips and various concentrations of hydrochloric acid to compare results. Outline: This section will outline the main idea for how to solve the problem. This will be based on scientific knowledge and understanding. We have been supplied with hydrochloric acid, which has a concentration of 2 moles per decimetre cubed (2 mol/dm3). We also have been provided with a length of magnesium ribbon. Another bottle of hydrochloric acid, but this time with an unknown concentration, is named X. The concentration of X is known to be between 0.5 mol/dm3 and 2 mol/dm3. Using only these chemicals, our task is to find out the concentration of the unknown acid. We are allowed...

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