Chemistry

Chemistry, 02.07.2019 02:00, Usman458

If a sample of magnesium has a mass of 60.0 g, how many moles of magnesium does the sample contain

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Chemistry, 28.06.2019 17:40, lindamillscotton90

(ii) a sample of magnesium contains 78.60% magnesium-24, 10.11% magnesium-25 and 11.29% magnesium-26. use this information to calculate the relative atomic mass of magnesium in this sample. give your answer to 3 significant figures.

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Chemistry, 18.08.2019 10:30, Sawyer4648

if a sample of magnesium has a mass of 60 g, how many moles of magnesium does the sample contain

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Chemistry, 23.08.2019 02:30, felicianorman97

Asample of magnesium oxide was found to be contaminated with magnesium nitrate. to determine the purity of the magnesium oxide, 3.50 g of sample was dissolved in 100.0 ml of 1.50 m hci. 25.0 ml of the resulting solution, which has excess hcl in it, was titrated against 0.200 m naoh solution. the average titration volume was found to be 8.50 ml. (a) write a balanced equation, with state symbols, for the reaction between magnesium oxide and hydrochloric acid. ( 1 mark) (b) calculate the percentage of magnesium oxide in the sample. ( 8 marks ) (c) name the type of titration used in the analysis above.

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Chemistry, 06.10.2019 22:10, xman839

In an experiment to find the percentage conversion of magnesium to magnesium oxide, 0.15g magnesium ribbon was heated in air for 5 minutes. the mass of product found to be 0.22g. calculate: a) the number of moles of magnesium at the start of the experiment b) the mass of oxygen which reacted with magnesium c) the number of moles of oxygen which reacted.

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If a sample of magnesium has a mass of 60.0 g, how many moles of magnesium does the sample contain...

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