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1. Describe how you would prepare 1.50 L of a 0.500 M phosphate buffer with a...

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Chemistry

1. Describe how you would prepare 1.50 L of a 0.500 M phosphatebuffer with a pH of 7.5. (show work)

2. If 5.00 mL of 0.150 M HCl is added to 0.750 L of your bufferfrom (1), what will the new ph be? (show work)

3. If 10.00 mL of 1.50 M NaOH is added to 0.750 L of your bufferfrom (1), what will the new ph be? (show work)

Answer & Explanation Solved by verified expert
4.2 Ratings (883 Votes)
Q1 for a buffer with pH 75 the best solution is pKa2 since pH 721 anwe must be near 75 so NaH2PO4 Na H2PO4 Na2HPO4 2Na HPO4 there is present of H2PO4 acid and HPO4 conjugate base therefore    See Answer
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