You Need to Use KH 2 PO 4 and K 2 HPO 4 to Prepare a Buffer

The Answer of You Need to Use KH 2 PO 4 and K 2 HPO 4 to Prepare a Buffer

You Need to Use KH 2 PO 4 and K 2 HPO 4 to Prepare a Buffer

The Answer of You Need to Use KH 2 PO 4 and K 2 HPO 4 to Prepare a Buffer

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You Need to Use KH₂PO₄ and K₂HPO₄ to Prepare a Buffer

Question 32

Multiple Choice

You need to use KH₂PO₄ and K₂HPO₄ to prepare a buffer with a pH of 7.45. Which of the following ratios of [base]/[acid] is required? For phosphoric acid, (H₃PO₄) , K_a2 = 6.2 × 10⁻⁸.

A) [base]/[acid] = 1.75
B) [base]/[acid] = 1.27
C) [base]/[acid] = 1.24
D) [base]/[acid] = 0.79
E) [base]/[acid] = 0.57

You Need to Use KH2PO4 and K2HPO4 to Prepare a Buffer

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You Need to Use KH₂PO₄ and K₂HPO₄ to Prepare a Buffer

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