Question

Calculate the volume of concentrated H2SO4 (S.G 1.84, 98% pure) required to prepare 1.0 dm³ of approximately 0.05 mol/dm³.

A) Not enough information provided
B) 2.45 dm³
C) 1.25 dm³
D) 1.28 dm³

Answer 1

To calculate the volume of concentrated H2SO4 required to prepare 1.0 dm³ of approximately 0.05 mol/dm³ solution, we can use the equation C1V1 = C2V2. Given the concentration of the concentrated H2SO4 is 98% pure, the volume required is approximately 0.02766 dm³.

Step-by-step explanation:

To calculate the volume of concentrated H2SO4 required to prepare 1.0 dm³ of approximately 0.05 mol/dm³ solution, we can use the equation:

C1V1 = C2V2

Where C1 is the initial concentration, V1 is the initial volume, C2 is the final concentration, and V2 is the final volume.

Given that the concentration of the concentrated H2SO4 is 98% pure, we can calculate the initial volume of the concentrated H2SO4 as follows:

• C1 = 1.84 * 0.98 = 1.8052
• V1 * C1 = 1.0 * 0.05
• V1 = 1.0 * 0.05 / 1.8052
• V1 = 0.02766 dm³

Therefore, the volume of concentrated H2SO4 required to prepare 1.0 dm³ of approximately 0.05 mol/dm³ solution is approximately 0.02766 dm³.