Question
Strength of 10 volume hydrogen peroxide solution means
A.
$$30.35\,g\,{L^{ - 1}}$$
B.
$$17\,g\,{L^{ - 1}}$$
C.
$$34\,g\,{L^{ - 1}}$$
D.
$$68\,g\,{L^{ - 1}}$$
Answer :
$$30.35\,g\,{L^{ - 1}}$$
Solution :
$$\mathop {2{H_2}{O_2}}\limits_{68\,g} \to 2{H_2}O + \mathop {{O_2}}\limits_{22.4\,L\,\,{\text{at}}\,\,STP} $$
$$22.4\,L\,{O_2}\,{\text{is given by}}\,68\,g\,\,{\text{of}}\,\,{H_2}{O_2}$$
$$10\,L\,{O_2}\,{\text{is given by}}\,\frac{{68}}{{22.4}} \times 10$$ $$ = 30.35\,g\,{L^{ - 1}}$$