Chemistry, 26.10.2021 17:00, pmgpmgutube

A river passing an industrial plant is suspected of being polluted with lead nitrate (Pb(NO3)2). A method to determine the presence of the substance is to perform a precipitation reaction in which ions displace each other forming an insoluble precipitate. Design an investigation to determine how the distance from the industrial plant influences the colour and amount of precipitate formed when magnesium sulphide (MgS) is added to a river sample.

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A river passing an industrial plant is suspected of being polluted with lead nitrate (Pb(NO3)2). A m...