This question is about identifying ions and performing calculations with solutions.
Which two methods can be used to identify the presence of sodium ions in a solution?
Sodium hydroxide solution is used to test for some metal ions. Sodium hydroxide solution is added to a solution of copper(II) sulfate until a precipitate forms.
Complete the sentence by choosing from: blue, brown, green, or white.
The colour of the precipitate formed is _______________.
Complete the sentence by choosing from: barium chloride solution, limewater, red litmus paper, or silver nitrate solution.
Chloride ions can be identified using dilute nitric acid and _______________.
A solution of copper(II) sulfate has a concentration of 237 g/dm3.
Calculate the mass of copper(II) sulfate needed to make 600 cm3 of a solution with a concentration of 237 g/dm3.
Give your answer to 3 significant figures.