pH of Weak Acids
17. Acid and Base Equilibrium / pH of Weak Acids / Problem 7
The Ka value for formic acid is 1.8×10−4. It has a density of 1.22 g/mL.
HCOOH (aq) + H2O(l) ⇌ HCOO-(aq) + H3O+ (aq)
Calculate the concentration of formate ions in the solution made by 25.0 mL of formic acid diluted to a final volume of 300.0 mL in water. Express the answer with two significant figures.
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