Chemistry - Concentration Terms Question with Solution | TestHub

Let$\text{a}\text{mL}$of$\text{6N}$and$\left(\text{100}-\text{a}\right)\text{mL}$of$\text{2N}$are mixed
So$6\mathrm{a}+2(100-\mathrm{a})=100\times 5$
$\text{a}\text{=}\text{75}\text{mL,}\left(\text{100}-\text{1}\right)\text{=}\text{25}\text{mL}$