(b) A solution of sodium hydroxide is prepared.
The mass of a container with solid sodium hydroxide is determined.
The sodium hydroxide is transferred to a flask.
The mass of the empty container is determined.
The sodium hydroxide is dissolved in water and the volume made up to 2 dm².
The results are
mass of container + solid sodium hydroxide = 17.12g
= 7.02g
mass of empty container
The results are used to calculate the concentration of the sodium hydroxide solution.
(i) Calculate the mass of solid sodium hydroxide transferred to the flask
mass of solid sodium hydroxide: