molecules are there under the same conditions in
i) The same volume of argon
ii ) Double the volume of helium
iii ) Ten times the volume of nitrogen?
2a) Plan an experiment to measure the change in mass on burning
magnesium in air
b) Draw a blank result table
3) 2.67g of aluminum chloride was dissolved in water and an excess
of silver nitrate solution was added to give a precipitate of silver
chloride. What mass of silver chloride precipitate would be formed?
Please list out the steps too, thanks a lot.
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4) Coper (II) sulphate crystals, CuSO4-5H2O, can be made by heating copper (II) oxide with dilute sulphuric acid and then crystallising the solution formed. Calculate the maximum mass of crystals that could be made from 4.00 g of copper (II) oxide using an excess of sulphuric acid.
