i need help with this question please asap for chemistry thank you
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i need help with this question please asap for
chemistry thank you
tarminae 3. Buffers: A...
PART C. Properties of Buffers Buffer system selected_HCO -(0,2- Weak acid name _ NaC,H,O, pH of...
PART C. Properties of Buffers Buffer system selected_HCO -(0,2- Weak acid name _ NaC,H,O, pH of buffer 4.68 (H') = 2.09 XIOK 2.09x10 pH of diluted buffer 4.13 [H") = 1.8x10K - 1.8x10-5 pH after addition of five drops of NaOH 4.76 pH after addition of five drops of HCI - 4.69 pH of buffer in which (HA) = 0.10 5.66 K.- 2.188x106 pH after addition of excess NaOH 11.53 (2.188x10-6) (0.00) pH of distilled water 8.22 10.09) pH after...
Buffers Lab (I ONLY NEED HELP WITH #5) The 2 buffers are (acetic acid + sodium...
Buffers Lab (I ONLY NEED HELP WITH #5) The 2 buffers are (acetic acid + sodium acetate) and (acetic acid + sodium hydroxide) 3:The two buffers that you will make in class are identical. If 5.00mL of a 1.0 M NaOH solution is added to one of these buffers, what would be the resulting pH after addition? ---Had to make a IACE table and what I got was pH=5.20 4: What is the total volume of NaOH (1.0 M) you...
I need help with number 14, 15 , and 16 please! I also provided information in order to solve the problem, but I dont k...
I need help with number 14, 15 , and 16 please! I also
provided information in order to solve the problem, but I dont know
how to do that. thank you!
We were unable to transcribe this imageJ. Uly the experimental data for pH and the concentration of the solutions, calculate the k WORK.) Solution Value of K, or kb 0.1 ZnCl2 Ko= 9.0x10-17 0.1 KAI(SO4)2 Kb = 1.44x10-20 0.1 NH4Cl Ka = 3.80 x 10-9 0.1 NaC H302 Ko=...
I need help finding calculated pH for part IV and part V please! pKa of acetic...
I need help finding calculated pH for part IV and part V
please!
pKa
of acetic acid= 4.744
su 13.21 Part IV: Dilution of Buffered and Unbuffered Solutions Calculated pH | Calculated ApH Observed pH Observed ApH Number Preparation 15 ml. HC H3O2(aq) 15 ml NaC,HO2(aq) 5 ml Solution 1 25 mL H20 5 ml Solution 2 25 ml H20 4 30 mL HC H2O2(aq) 5 ml Solution 4 25 ml H2O 5 ml Solution 5 25 ml. H2O 4.10...
I need help with #4. "show by calculation why acetic acid (Ka = 1.8 X 10^-5), when combined with NaC2H3O3 as a buffe...
I need help with #4. "show by calculation why acetic
acid (Ka = 1.8 X 10^-5), when combined with NaC2H3O3 as a buffer,
will not produce a pH o 9.00"
1. What is the pH of a 1.0L buffer that is 0.10 M in Naz HPO4 and 0.15 M in NaH2PO4? Write the equilibrium reaction equation and corresponding Ka expression for the buffer. K for H2PO4 is 6.2 X 108 2. A 10.00 mL sample of 0.300 M NH3 is...
9 Which buffer had the highest absolute concentrations of HC,H,O, and NaC2H5O2? 10. Which buffers had...
9 Which buffer had the highest absolute concentrations of HC,H,O, and NaC2H5O2? 10. Which buffers had the most effective ratio of NaC,H,O, to HCHIO, 11. Write the net ionic equation for the reaction of H3O(from HCI) with your buffer. 12. Does adding HCl raise or lower the concentration of HC,H,O,? 13. Does adding HCl raise or lower the concentration of NaC2H5O2? 14. Does adding a small amount of HCl significantly change the pH? 15. Write the net ionic equation that...
i need help explaining this, explain the results. discuss the change in pH for water and...
i need help explaining this,
explain the results. discuss the change in pH for water and
contrast it to the change in pH of the buffer system
thanks
General Chemistry II Laboratory Manual After addition: H,O 82PH 4 656 pH 7 8.1 pH 10 o Explain the results. Discuss the change in pH for water and contrast it to the change in pH of the buffer systems Acid Addition Base Addition 3. Buffer Preparation Assigned buffer pH S.5 L a....
I need some help with the question below. Thank you in advance! The addition of hydrofluoric...
I need some help with the question below. Thank you in
advance!
The addition of hydrofluoric acid and to water produces a buffer solution. O A HCI O B NaNO3 O C NaCl O D NaOH O E NaBr
CHEM107 ACID_BASE BUFFERS AND PH UNIT-25 CTO-13: You have 500.0 mL of a buffer solution containing...
CHEM107 ACID_BASE BUFFERS AND PH UNIT-25 CTO-13: You have 500.0 mL of a buffer solution containing 0.20 Macetic acid CH3COOH) and 0.30 M sodium acetate (CH3COONa). What will the pH of this solution be after the addition of 20.0 mL of 1.00 M NaOH solution? (Ka=1.8 x 10-51 1) 4.41 B) 4.74 C) 4.56 D) 4.92 E) 5.07
I need help filling out this chart. Sheet pH of Salt solutions and Properties of Buffers...
I need help filling out this chart.
Sheet pH of Salt solutions and Properties of Buffers OH of Salt Solutions pH Solution measured lonization of Salt Naci 6.99 lon Hydrolyzed Na co 14.0 NaC,H,O2 10.0 NH.CI 6.01 NaHSO 11. 70 Net lonic Equation
PART C. Properties of Buffers Buffer system selected_HCO -(0,2- Weak acid name _ NaC,H,O, pH of buffer 4.68 (H') = 2.09 XIOK 2.09x10 pH of diluted buffer 4.13 [H") = 1.8x10K - 1.8x10-5 pH after addition of five drops of NaOH 4.76 pH after addition of five drops of HCI - 4.69 pH of buffer in which (HA) = 0.10 5.66 K.- 2.188x106 pH after addition of excess NaOH 11.53 (2.188x10-6) (0.00) pH of distilled water 8.22 10.09) pH after...
I need help with number 14, 15 , and 16 please! I also
provided information in order to solve the problem, but I dont know
how to do that. thank you!
We were unable to transcribe this imageJ. Uly the experimental data for pH and the concentration of the solutions, calculate the k WORK.) Solution Value of K, or kb 0.1 ZnCl2 Ko= 9.0x10-17 0.1 KAI(SO4)2 Kb = 1.44x10-20 0.1 NH4Cl Ka = 3.80 x 10-9 0.1 NaC H302 Ko=...
I need help finding calculated pH for part IV and part V
please!
pKa
of acetic acid= 4.744
su 13.21 Part IV: Dilution of Buffered and Unbuffered Solutions Calculated pH | Calculated ApH Observed pH Observed ApH Number Preparation 15 ml. HC H3O2(aq) 15 ml NaC,HO2(aq) 5 ml Solution 1 25 mL H20 5 ml Solution 2 25 ml H20 4 30 mL HC H2O2(aq) 5 ml Solution 4 25 ml H2O 5 ml Solution 5 25 ml. H2O 4.10...
I need help with #4. "show by calculation why acetic
acid (Ka = 1.8 X 10^-5), when combined with NaC2H3O3 as a buffer,
will not produce a pH o 9.00"
1. What is the pH of a 1.0L buffer that is 0.10 M in Naz HPO4 and 0.15 M in NaH2PO4? Write the equilibrium reaction equation and corresponding Ka expression for the buffer. K for H2PO4 is 6.2 X 108 2. A 10.00 mL sample of 0.300 M NH3 is...
9 Which buffer had the highest absolute concentrations of HC,H,O, and NaC2H5O2? 10. Which buffers had the most effective ratio of NaC,H,O, to HCHIO, 11. Write the net ionic equation for the reaction of H3O(from HCI) with your buffer. 12. Does adding HCl raise or lower the concentration of HC,H,O,? 13. Does adding HCl raise or lower the concentration of NaC2H5O2? 14. Does adding a small amount of HCl significantly change the pH? 15. Write the net ionic equation that...
i need help explaining this,
explain the results. discuss the change in pH for water and
contrast it to the change in pH of the buffer system
thanks
General Chemistry II Laboratory Manual After addition: H,O 82PH 4 656 pH 7 8.1 pH 10 o Explain the results. Discuss the change in pH for water and contrast it to the change in pH of the buffer systems Acid Addition Base Addition 3. Buffer Preparation Assigned buffer pH S.5 L a....
I need some help with the question below. Thank you in
advance!
The addition of hydrofluoric acid and to water produces a buffer solution. O A HCI O B NaNO3 O C NaCl O D NaOH O E NaBr
CHEM107 ACID_BASE BUFFERS AND PH UNIT-25 CTO-13: You have 500.0 mL of a buffer solution containing 0.20 Macetic acid CH3COOH) and 0.30 M sodium acetate (CH3COONa). What will the pH of this solution be after the addition of 20.0 mL of 1.00 M NaOH solution? (Ka=1.8 x 10-51 1) 4.41 B) 4.74 C) 4.56 D) 4.92 E) 5.07
I need help filling out this chart.
Sheet pH of Salt solutions and Properties of Buffers OH of Salt Solutions pH Solution measured lonization of Salt Naci 6.99 lon Hydrolyzed Na co 14.0 NaC,H,O2 10.0 NH.CI 6.01 NaHSO 11. 70 Net lonic Equation
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