A Buffer Solution Is Prepared by Dissolving 27

question 32

Multiple Choice

A buffer solution is prepared by dissolving 27.22 g of KH₂PO₄ and 3.37 g of KOH in enough water to make 0.100 L of solution.What is the pH of the H₂PO₄^-/HPO₄^2- buffer if the K_a2 = 6.2 × 10^-8?

• A)6.84
• B)7.00
• C)7.21
• D)7.84

Identify the environmental issues highlighted by major international events like the Olympic Games.

Understand how climate change affects agriculture and food production in Canada.

Know the importance of biodiversity and the factors contributing to its loss.

Understand the role of human contribution to environmental degradation and climate change.

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