what volumes of 0.500 M HNO (Ka = 4:0x104) and 0.500 M NANO must be mixed...

Question

Question

what volumes of 0.500 M HNO (Ka = 4:0x104) and 0.500 M NANO must be mixed to Prepare lool of a solution buffered pH 3.55?

science chemistry

Answer 1

Answer #1

equation we from Henderson - Hasselbalch know , pH = pka + log [salt [acid] [NaNO2] O, 355 = -log(4.0x1074) + 20g HNOL} = 3.4

Answer 2

Similar Homework Help Questions

What volumes of 0.500 M HNO2 and 0.500 M NaNO2 must be mixed to prepare 1.00...

What volumes of 0.500 M HNO2 and 0.500 M NaNO2 must be mixed to prepare 1.00 L of a solution buffered at pH = 3.20?
What volumes of 0.500 M HNO2 and 0.500 M NaNO2 must be mixed to prepare 1.00...

What volumes of 0.500 M HNO2 and 0.500 M NaNO2 must be mixed to prepare 1.00 L of a solution buffered at pH = 3.20? What is the acid/base ratio (HNO2/NO2 - ) in this solution? Volumes: Ratio b/a=
Ka of HNO2 is 4.0*10^-4 Can you work out 42 and 44 for me. Along with...

Ka of HNO2 is 4.0*10^-4 Can you work out 42 and 44 for me. Along with explanation. 42. What volumes of 0.50 M HNO, and 0.50 M NaNO, must be mixed to prepare 1.00 L of a solution buffered at pH = 3.55?! 43. Consider a solution that contains both CsHSN and CsH5NHNO3. Calculate the ratio [CSH N]/[CsH NH+] if the solution has the following pH values: a. pH = 4.50 2101 c. pH = 5.23 olo lo dorato b....

What volumes of 0.45 M HF and 0.45 M KF must be mixed to prepare 1.00...

What volumes of 0.45 M HF and 0.45 M KF must be mixed to prepare 1.00 L of a solution buffered at pH = 3.35? HF _____L KF _____L
What volumes of 0.49 M HF and 0.49 M LiF must be mixed to prepare 1.00...

What volumes of 0.49 M HF and 0.49 M LiF must be mixed to prepare 1.00 L of a solution buffered at pH = 3.29? HF ?L LiF ?L
name 1. Equal volumes of 0.10 M HCl and 0.16 M HNO, were mixed. What is the pH of the resulting word 2. Equal volum...

name 1. Equal volumes of 0.10 M HCl and 0.16 M HNO, were mixed. What is the pH of the resulting word 2. Equal volumes of 0.10 M HCl and 0.22 M CH,COOH (K.-1.8 X 10') were mixed. What is the pH of the resulting solution? 3. Equal volumes of 0.10 M HCl and 0.1.6 X 10-MHCIO. were mixed. What is the pH of the resulting solution?

please answer the following questions, thank you Pre-lab Calculations 1. What volumes of 1.0 M HNO,...

please answer the following questions, thank you Pre-lab Calculations 1. What volumes of 1.0 M HNO, and 1.0 M triethanolamine are required to prepare 1.0 L of buffer that has a pH of 7.76 and is 0.020 M in both triethanolamine and triethanolammonium ion? [A] + [HA] = 0.040 mol/L (40 mM) 2. What weight of NaCl must be weighed out to prepare 250 mL of 0.10 M NACI?!
please answer the questions 4. (5 pts) A solution resulting from combination of the following is obtained: HNO NaNO,...

please answer the questions 4. (5 pts) A solution resulting from combination of the following is obtained: HNO NaNO, and HCIThe concentrations after mixing are found to be: 0.23M HNO 0.45M NaNO, and 0.18M HCI. What is the pH of this solution? (For HNO2. pka= 3.45) 5. (8 pts) A curious CHE 1131 student purchased a can of soda water from the cafeteria. Upon opening the can and taking a sip, student noticed a tart taste indicating an acidic solution....
of Jestion Consider a buffer of HNO/NO, 1. To create the buffer, solid NaNO (MM =...

of Jestion Consider a buffer of HNO/NO, 1. To create the buffer, solid NaNO (MM = 68.995 g/mol) was added to a 500.0-ml 1.25 M HNO2 solution. The pka of HNO2 is 3.37. i. What mass needs to be added in order to have a buffer with pH 3.20. ii. If 10.0-mL of 2.50 M NaOH is added to the buffer prepared in i., what is the pH of the solution.

4. A solution of 0.200 M NaOH (14.0 mL) is mixed with 42.4 mL of o.170...

4. A solution of 0.200 M NaOH (14.0 mL) is mixed with 42.4 mL of o.170 M HNO,. Assuming that the final volume is the sum of the initial volumes, calculate: (a) the molarity of the Na* cation (b) the molarity of the NO, anion (c) the pH of the final solution (d) the pOH of the final solution