My aim is to make Epsom salts at 4 different speeds, by choosing one factor/variable which will change the speed, and to predict and measure the yield of Epsom salts using the mole.

... Chemistry Coursework Aim: * To make Epsom salts at 4 different speeds, by choosing one factor/variable which will change the speed. * To predict and measure the yield of Epsom salts using the mole. * To plan a safe affective method, to measure the speed and record useful data. What is Epsom Salts? Epsom salts with the common name magnesium sulphate heptahydrate, MgSO 4 ·7H 2 O, a water-soluble bitter-tasting compound that occurs as white or colourless needle-shaped crystals. It was first prepared from the waters of mineral springs at Epsom, England; it also occurs as the mineral epsomite. Epsom salts is used medicinally as a purgative; it is also used in leather tanning, mordant dyeing, and as filler in cotton goods and paper. Rate of reactions The effect of concentration A reaction can be made to go faster or slower by changing the concentration of a reactant. Using the reaction between magnesium and excess hydrochloric acid is

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