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can i get help finding the pH?
What is the pH after you add 0.10 mole...
What is the pH of a solution prepared by mixing 50.00 mL of 0.10 M NH3...
What is the pH of a solution prepared by mixing 50.00 mL of 0.10 M NH3 with 5.00 mL of 0.10 M NH4Cl? Assume that the volume of the solutions are additive and that Kb = 1.8 × 10-5 for NH3. (Select One) 10.26 or 11.13
i need help with finding the ph of an aq solution. im confused 9,10,12,13,14, &15. on...
i need help with finding the ph of an aq solution. im confused
9,10,12,13,14, &15. on 10 I caluclated 14 and 12 the closest
answer i got was 2.67, but i was exact. If its not a big
inconvience can you show me how? thank you
9. Calculate the pH of a 0.65 M NH3 solution if Kb for NH3 is 1.8x10-5. a) 2.47. b) 4.93. c) 11.53. d) 12.68. 10. The pH of a 0.2 M aqueous solution of...
Can I get help with 2,3, and 4. (pH = 2.72 2. Calculate the pH of...
Can I get help with 2,3, and 4.
(pH = 2.72 2. Calculate the pH of a 0.10 M aqueous solution of sodium acetate, NaC2H302. (2 pts) 3. A buffer solution contains 0.50 M acetic acid and 0.50 sodium acetate. Calculate the pH of this solution. (2 pts) 4. What is the pH of 2.00mL of 1.0 M HCl solution diluted to 50.0 mL? ( 2pts)
how would you calculate the expected pH for solution 7, 8, 9, 10, and 11? (I...
how
would you calculate the expected pH for solution 7, 8, 9, 10, and
11? (I am confused on how you calculate the dilutions for finding
the expected pH too)
Ka= 1.4x10^-5
pKa= 4.85
Part B - The Effect of Adding Acid or Base to a Buffered Solution Solution 6 16. Prepare a buffer solution by mixing 30.0 mL of 0.10 M HOAc and 40.0 mL of 0.10 M NaOAc. Measure the pH of the resulting solution with the pH...
can I get some help? A solution is prepared at 25 degree C that is initially...
can I get some help?
A solution is prepared at 25 degree C that is initially 0.39 M in acetic acid (HCH_3 CO_2) a weak acid with K_a = 1.8 times 10^-5, and 0.18 M in sodium acetate (NaCH_3CO_2). Calculate the pH of the solution.
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...
Does the pH of the solution increase, decrease, or stay the same when you add solid...
Does the pH of the solution increase, decrease, or stay the same when you add solid sodium hydrogen oxalate, NaHC2O4 to a dilute aqueous solution of oxalic acid, H2C2O4? Explain your answer using the equation below. H2C2O4 (aq) + H2O (l)⇌ HC2O41– (aq) + H3O+ (aq) 2)Why a solution of sodium chloride and hydrochloric acid cannot act as a buffer? (b) Propose a conjugate acid/base pair which can function as a buffer. 3) (a) Calculate the pH of a buffer...
can i get help with this question please 3. Consider the weak base-strong acid titration of...
can i get help with this question please
3. Consider the weak base-strong acid titration of 25.00 mL of 0.100 M NH, with 0.100 M HCl (weak base, strong acid). The Ks for this weak base is 1.8 x 10 a. Calculate the pH of the solution after the addition of 10.0 mL HCL. b. What is the pH half-way to the equivalence point? c. Calculate the pH at the equivalence point. d. Calculate the pH after the addition of...
I need help finding the Dilute and Dissolve. - (References) How would you prepare 1.10 L...
I need help finding the Dilute and Dissolve.
- (References) How would you prepare 1.10 L of a 0.50-M solution of each of the following? a. H, SO, from "concentrated" (18 M) sulfuric acid Dilute mL of concentrated H2SO4 to a total volume of 1.10 L with water a b. HCl from "concentrated" (12 M) reagent Dilute mL of concentrated HCI to a total volume of 110L with water c. NiCl, from the salt NiCl, 61,0 Dissolve g NiCl ....
I need help with #3, 4. Also, I am confused with #5 because both pH are...
I need help with #3, 4. Also, I am confused with #5
because both pH are the same.
Ka 1-7X10 4 3. In a titration between HCHO, and KOH, would the pH at the equivalence point be acidic, basic, or neutral? Briefly explain your answer. HCHO+KOH b) Which of the following acid-base indicators would be the best one to use in the titration? i) methyl orange, Ka = 104 ii) bromthymol blue, Ka = 10-7 iii) thymolphthalein, Ka= 10-10 4....
i need help with finding the ph of an aq solution. im confused
9,10,12,13,14, &15. on 10 I caluclated 14 and 12 the closest
answer i got was 2.67, but i was exact. If its not a big
inconvience can you show me how? thank you
9. Calculate the pH of a 0.65 M NH3 solution if Kb for NH3 is 1.8x10-5. a) 2.47. b) 4.93. c) 11.53. d) 12.68. 10. The pH of a 0.2 M aqueous solution of...
Can I get help with 2,3, and 4.
(pH = 2.72 2. Calculate the pH of a 0.10 M aqueous solution of sodium acetate, NaC2H302. (2 pts) 3. A buffer solution contains 0.50 M acetic acid and 0.50 sodium acetate. Calculate the pH of this solution. (2 pts) 4. What is the pH of 2.00mL of 1.0 M HCl solution diluted to 50.0 mL? ( 2pts)
how
would you calculate the expected pH for solution 7, 8, 9, 10, and
11? (I am confused on how you calculate the dilutions for finding
the expected pH too)
Ka= 1.4x10^-5
pKa= 4.85
Part B - The Effect of Adding Acid or Base to a Buffered Solution Solution 6 16. Prepare a buffer solution by mixing 30.0 mL of 0.10 M HOAc and 40.0 mL of 0.10 M NaOAc. Measure the pH of the resulting solution with the pH...
can I get some help?
A solution is prepared at 25 degree C that is initially 0.39 M in acetic acid (HCH_3 CO_2) a weak acid with K_a = 1.8 times 10^-5, and 0.18 M in sodium acetate (NaCH_3CO_2). Calculate the pH of the solution.
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...
can i get help with this question please
3. Consider the weak base-strong acid titration of 25.00 mL of 0.100 M NH, with 0.100 M HCl (weak base, strong acid). The Ks for this weak base is 1.8 x 10 a. Calculate the pH of the solution after the addition of 10.0 mL HCL. b. What is the pH half-way to the equivalence point? c. Calculate the pH at the equivalence point. d. Calculate the pH after the addition of...
I need help finding the Dilute and Dissolve.
- (References) How would you prepare 1.10 L of a 0.50-M solution of each of the following? a. H, SO, from "concentrated" (18 M) sulfuric acid Dilute mL of concentrated H2SO4 to a total volume of 1.10 L with water a b. HCl from "concentrated" (12 M) reagent Dilute mL of concentrated HCI to a total volume of 110L with water c. NiCl, from the salt NiCl, 61,0 Dissolve g NiCl ....
I need help with #3, 4. Also, I am confused with #5
because both pH are the same.
Ka 1-7X10 4 3. In a titration between HCHO, and KOH, would the pH at the equivalence point be acidic, basic, or neutral? Briefly explain your answer. HCHO+KOH b) Which of the following acid-base indicators would be the best one to use in the titration? i) methyl orange, Ka = 104 ii) bromthymol blue, Ka = 10-7 iii) thymolphthalein, Ka= 10-10 4....
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