A 100 L Buffer Solution Is 0

question 156

Multiple Choice

A 1.00 L buffer solution is 0.250 M in HF and 0.250 M in LiF.Calculate the pH of the solution after the addition of 0.150 moles of solid LiOH.Assume no volume change upon the addition of base.The K_a for HF is 3.5 × 10^-4.

• A) 3.46
• B) 4.06
• C) 2.85
• D) 3.63
• E) 4.24

---

Definitions:

Mutually Beneficial Trades

Exchanges that occur when all parties involved gain benefits or profits from the transaction.

Total Surplus

The sum of consumer surplus and producer surplus in a market, representing the total net benefit to society from trade.

Consumer Surplus

The separation between what consumers envisage paying for a good or service and the amount they actually disburse.

Producer Surplus

The gap between the price that sellers are ready to take for a product or service and the actual price they get from the market.