12. (6 pts) What combination of substances will give a solution buffered at a pH of 3.50 (at 25°C)? a) 1.26 M HNO₂ and 1

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12 6 Pts What Combination Of Substances Will Give A Solution Buffered At A Ph Of 3 50 At 25 C A 1 26 M Hno And 1 1 (33.4 KiB) Viewed 47 times

12. (6 pts) What combination of substances will give a solution buffered at a pH of 3.50 (at 25°C)? a) 1.26 M HNO₂ and 1.00 M NaNO₂ b) 1.00 M HNO₂ and 1.26 M NaNO₂ c) 1.00 M NaHCO3 and 0.661 M Na₂CO3 d) 0.661 M NaHCO3 and 1.00 M Na₂CO3 e) 3.16×10 M HCl and 3.16×10¯ M NaCl