Sulfuric acid is used in the synthesis and processing of many chemicals and meta

Question

Sulfuric acid is used in the synthesis and processing of many chemicals and metals, and it is the electrolyte in common lead-acid batteries. It is used in various strengths, ranging from concentrated (100%) to dilute; so being able to estimate its concentration from a simple measurement of specific gravity is quite useful. Suppose you prepare a solution that is 25.0 wt% H2SO4 in water and intend to confirm the concentration by comparing the specific gravity of the solution to that available from the literature. To 75.0 g of water you carefully add 25.0 g of H2SO4 and allow the resulting mixture to equilibrate at 20°C. (You know that rapidly adding the acid to water or water to concentrated acid can both lead to dangerous splatters of liquid.) Estimate the volume of 40.0 wt% sulfuric acid (SG = 1.2991 at 25°C) that must be added to the 100.0 g of the 25.0-wt% solution to produce a solution that is 35.0 wt% sulfuric acid?

Explanation / Answer

in order to make 35% wt% of sufuric acid we have to use following method

100g 25% wt contin 25g h2so4we requre 200g of 40% sulfuric acid

so total 300 g contains 105g H2so4 so %of H2SO4 will be 35%

since we know SG so divide wt by SG

so we require 154mL of 40% Wt sulfuric acid to make 35%wt h2SO4

Related Questions

Navigate

• Browse (All)
• Browse S
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.