The student did another experiment using 20 cm3 of sodium hydroxide solution with a concentration of 0.18 mol/dm3 . Relative formula mass (Mr) of NaOH = 40 Calculate the mass of sodium hydroxide in 20 cm3 of this solution.
20/1000 *0.18
final answer 0.144 Answer must be explained in person. It is very difficult to explain in writing.
SG
