Coursework.Info - Inspiration in an Instant

On the left is an image preview of every page of this document, and below are the first 150 words with formatting removed:

GCSE Chemistry Coursework Aim My aim is to see how the strength of an acid varies how this affects the time is taken to produce 10ml oh hydrogen gas, using magnesium ribbon and 4 different strengths of HCL, 0.2m, 0.4m, 0.7m, 1m. Hypothesis I predict that the higher the strength of the acid, the quicker the time taken to produce the 10ml of gas required. I think this will happen as the stronger the strength of an acid the more h+ Ions to donate, so if the acid has more h(+) Ions then the higher the chance of it not only forming hydrogen gas but producing more of it, in a shorter period of time. Hydrogen gas is produced by, H2= 2H(+) + 2e(-). This then leaves the chloride ions, CL(-) to join with the magnesium and form a salt, magnesium chloride, CL(-) + Mg(+) =MgCL Fair Testing To make sure that the experiments are accurate and...

To see the full version of this document, and 145,345 others