GCSE / O Levels Chemistry

Two aqueous solutions, Q and R, have the same concentration in mol   /   dm 3 . Solution Q contains 4.0   g of NaOH in 500   cm 3   of solution. Which solution could be solution R? [ A r   : Na, 23; O, 16; H, 1]  A   0.2   mol of Ca(OH)   2   in 250   cm 3   of solution  B   0.2   mol of HC l   in 100   cm 3   of solution  C   0.05   mol of H   2 SO   4   in 250   cm 3   of solution  D   0.1   mol of KOH in 1000   cm 3   of solution

Formulae, Stochiometry And Mole Concept | 2023 - M/J - 5070/11 | Q8