Question

if 0.5M h2so4 contains 50mL then 1M h2so4 contains how much mL?

Answer 1

Task:

if 0.5M h2so4 contains 50mL then 1M h2so4 contains how much mL?

Solution:

The number of moles of $\mathrm{H}_2\mathrm{SO}_4$ doesn't change in both cases.

$$n(\mathrm{mol}) = C(M) \cdot V(L)$$

According to the equation $n_1 = n_2$, we can write the following:

$$C_1(M) \cdot V_1(L) = C_2(M) \cdot V_2(L)$$

The volume of 1M solution is

$$V_1(L) = C_2(M) \cdot V_2(L) / C_1(M)$$ $$V_1(mL) = 0.5 \cdot 50 / 1 = 25 \text{ mL}$$

Answer: $V_1(mL) = 25 \text{ mL}$