1) Which of the following solutions is a good buffer system? Which of the following solutions is...
Question:
1)
Which of the following solutions is a good buffer system?
Which of the following solutions is a good buffer system?
A solution that is 0.10 M HCN and 0.10 M LiCN | |||||||||||||||||||||
A solution that is 0.10 M NaCl and 0.10 M HCl | |||||||||||||||||||||
A solution that is 0.10 M KOH and 0.10 M HNO3 | |||||||||||||||||||||
A solution that is 0.10 M HNO3 and 0.10 M KNO3 | |||||||||||||||||||||
A solution that is 0.10 M HCN and 0.10 M Na Cl 2) Calculate the pH of the solution that results fromeach of the following mixtures. Part A 55.0 mL of 0.17 M HCHO2 with70.0 mL of 0.13 M NaCHO2 Express your answer using two decimal places. Part B 115.0 mL of 0.11 M NH3 with250.0 mL of 0.11 M NH4Cl Express your answer using two decimal places. 3) A 1.0-L buffer solution is0.125 M in HNO2 and0.180 M in NaNO2.
Part A Determine the concentrationsof HNO2 and NaNO2 after addition of1.5 g HCl. Express your answers using three significant figures separatedby a comma. Part B Determine the concentrationsof HNO2 and NaNO2 after addition of1.5 g NaOH. Express your answers using three significant figures separatedby a comma. Part C Determine the concentrationsof HNO2 and NaNO2 after addition of1.5 g HI. Express your answers using three significant figures separatedby a comma. 4) A ligand is a molecule or ion that acts as a A ligand is a molecule or ion that acts as a
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Chemistry The Central Science
ISBN: 978-0321696724
12th edition
Authors: Theodore Brown, Eugene LeMay, Bruce Bursten, Catherine Murphy, Patrick Woodward