Question

Does anyone know the answer to thissss ? (If you don’t, pls don’t respond ) HAVE A LOVELY DAY <3 pls help!!

Answer 1

Mixed molarity

$\tt Mc=\dfrac{M_1V_1+M_2V_2}{V_1+V_2}$

V₁+V₂=166.03 ml

V₁ = 166.03 - V₂ (eq 1)

Input the value:

$\tt 0.49=\dfrac{0.65V_1+0.2V_2}{166.03}\\\\81.355=0.65V_1+0.2V_2(eq~2)$

Input eq 1 to eq 2:

$\tt 81.355=0.65(166.03-V_2)+0.2V_2\\\\81.355=107.92-0.65V_2+0.2V_2\\\\0.45V_2=26.565\rightarrow V_2=59.03~ml\\\\V_1=166.03-59.03=107~ml$