A 1.0 L buffer mixture contains 0.15 moles of HClO and 0.20 moles of NaClO. Which...
A 1.0 L buffer mixture contains 0.15 moles of HClO and 0.20 moles of NaClO. Which of the following additions would destroy the buffer (exceeds the buffer capacity)?
A. Adding 0.20 moles of NaOH
B. Adding 0.15 moles of HCl
C. Adding 0.20 moles of NaClO
D. None of the above
Homework Answers
Adding Hcl, no proble, adding NaClO, no problem, but adding NAOH will:
NaOH + HClO = H2O
0.2 mol of OH- + 0.15 mol H+ = 0.05 mol of OH- in excess, therefore no acid left for buffer
the buffer is destroyed!
choose A
Add Answer to:
A 1.0 L buffer mixture contains 0.15 moles of HClO and 0.20
moles of NaClO. Which...
Question 10 Unanswered A 1.0 L buffer solution is 0.060 M HC2H302and 0.250 M LIC2H302. Which...
Question 10 Unanswered A 1.0 L buffer solution is 0.060 M HC2H302and 0.250 M LIC2H302. Which of the following actions will destroy the buffer? A adding 0.060 moles of HC2H3O2 adding 0.060 moles of LiC2H3O2 C adding 0.060 moles of LIOH D adding 0.060 moles of HCl None of the above will destroy the buffer B
A 1.0 L buffer solution contains .30 moles acetic acid and .10 moles lithium acetate. which...
A 1.0 L buffer solution contains .30 moles acetic acid and .10
moles lithium acetate. which of the following actions will destroy
the buffer?
A 1.0 L buffer solution contains 0.30 moles acetic acid (CH3CO2H) and 0.10 moles lithium acetate (CH,COLI). Which of the following actions will destroy the buffer? A. Addition of 0.10 moles of NaOH B. Addition of 0.10 moles of HCI
Which of the following solutions has the least buffer capacity? A 1.0 L mixture of 0.200...
Which of the following solutions has the least buffer capacity? A 1.0 L mixture of 0.200 M H2PO4− and 0.100 M HNO3 All of the above have the same buffer capacity. A 1.0 L mixture of 0.200 M H2PO4− and 0.100 M HCl A 1.0 L mixture of 0.100 M H3PO4 and 0.100 M H2PO4− A 1.0 L mixture of 0.200 M H3PO4 and 0.100 M NaOH
A formic acid buffer system contains 0.250 moles of formic acid and 0.250 moles of sodium...
A formic acid buffer system contains 0.250 moles of formic acid and 0.250 moles of sodium formate. Which of the following additions to the system would exhaust the buffer and cause it to go over the buffer capacity? 0.325 moles of NaOH; 0.175 moles of HCl; 0.160 moles of KOH; 0.250 moles of NaOH and 0.250 moles of HCl
A 1.0 L buffer solution has 0.15 mol L-'HCN and 0.60 mol L-1 KCN. The K,...
A 1.0 L buffer solution has 0.15 mol L-'HCN and 0.60 mol L-1 KCN. The K, of HCN is 4.9 X 10-10. Which action will destroy the buffer? A. Add 0.50 mol HCN to the buffer. B. Add 0.50 mol KCN to the buffer. C. Add 0.50 mol HCl to the buffer. D. Add 0.50 mol KOH to the buffer. E. More than one of the above will destroy the buffer. (Hint: write some chemical equations & use stoichiometry!)
Consider the following two buffers: (i) 10.0 mL of a buffer that contains 0.10 M HClO...
Consider the following two buffers: (i) 10.0 mL of a buffer that contains 0.10 M HClO and 0.10 M NaClO (ii) 10.0mL of a buffer that contains 0.050 M HClO and 0.10 M NaClO b.) 8 drops of 1.0 M NaOH (aq) is added to each of these buffers. 1.)Give the balanced net-ionic equation for the reaction that occurs when the NaOH (aq) is added. 2.)For which buffer (i or ii) does the pH change the greatest amount when the...
A 1.0 L buffer solution contains 0.74 moles of ammonia 0.74 moles of ammonium chloride. Kb...
A 1.0 L buffer solution contains 0.74 moles of ammonia 0.74 moles of ammonium chloride. Kb = 1.8 x 10—5 . Calculate the pH of this buffer after the addition of 0.10 moles of NaOH.
Which of the following cannot be a buffer? Group of answer choices A mixture of nitric...
Which of the following cannot be a buffer? Group of answer choices A mixture of nitric acid (HNO3) and sodium hydroxide (NaOH) A mixture of acetic acid (CH3COOH) and sodium acetate (CH3COONa) A mixture of ammonia (NH3) and ammonium chloride (NH4Cl) A mixture of hypochlorous acid (HClO) and sodium hypochlorite (NaClO) A mixture of Tris (C4H11NO3) and Tris hydrochloride (C4H12NO3+Cl-)
A 1.0-L buffer solution initially contains 0.25 mol of NH3 (Kb=1.76×10−5) and 0.25 mol of NH4Cl. In order to adjust the...
A 1.0-L buffer solution initially contains 0.25 mol of NH3 (Kb=1.76×10−5) and 0.25 mol of NH4Cl. In order to adjust the buffer pH to 8.85, should you add NaOH or HCl to the buffer mixture? What mass of the correct reagent should you add?
please solve and show work! Consider a 1.0 L solution of 0.20 M acetic acid, CH3COOH....
please solve and show work!
Consider a 1.0 L solution of 0.20 M acetic acid, CH3COOH. Addition of which reagent(s) will generate a buffer solution. X. 1.0 L of 0.20 M NaOH Y. 1.0 Lof 0.10 M NaOH Z. 1.0 L of 0.20 M CH3COONa A. X and Z B. Z only C. Y and Z D. X and Y E.Y only
Question 10 Unanswered A 1.0 L buffer solution is 0.060 M HC2H302and 0.250 M LIC2H302. Which of the following actions will destroy the buffer? A adding 0.060 moles of HC2H3O2 adding 0.060 moles of LiC2H3O2 C adding 0.060 moles of LIOH D adding 0.060 moles of HCl None of the above will destroy the buffer B
A 1.0 L buffer solution contains .30 moles acetic acid and .10
moles lithium acetate. which of the following actions will destroy
the buffer?
A 1.0 L buffer solution contains 0.30 moles acetic acid (CH3CO2H) and 0.10 moles lithium acetate (CH,COLI). Which of the following actions will destroy the buffer? A. Addition of 0.10 moles of NaOH B. Addition of 0.10 moles of HCI
A 1.0 L buffer solution has 0.15 mol L-'HCN and 0.60 mol L-1 KCN. The K, of HCN is 4.9 X 10-10. Which action will destroy the buffer? A. Add 0.50 mol HCN to the buffer. B. Add 0.50 mol KCN to the buffer. C. Add 0.50 mol HCl to the buffer. D. Add 0.50 mol KOH to the buffer. E. More than one of the above will destroy the buffer. (Hint: write some chemical equations & use stoichiometry!)
please solve and show work!
Consider a 1.0 L solution of 0.20 M acetic acid, CH3COOH. Addition of which reagent(s) will generate a buffer solution. X. 1.0 L of 0.20 M NaOH Y. 1.0 Lof 0.10 M NaOH Z. 1.0 L of 0.20 M CH3COONa A. X and Z B. Z only C. Y and Z D. X and Y E.Y only
Most questions answered within 3 hours.
-
Where is the error in this code sequence?
String s1 = "Hello";
String s2 = "ello";...
asked 11 months ago -
Financial data for Joel de Paris, Inc., for last year
follow:
Joel de Paris, Inc.
Balance...
asked 11 months ago -
Consider this reaction:
Al2(SO4)3 (aq)+ BaCl3
(aq) Al2Cl6 (aq)- +
3BaSO4(s) . What is the...
asked 11 months ago -
Suppose that Savneet is considering increasing her
recent random sample from 20 car rentals to 40...
asked 11 months ago -
Trucks arrive at an unloading terminal at an average rate of 120
per hour.
Trucks arrive...
asked 11 months ago -
Why are methanol and ethanol completely soluble in water while
octanol is not very little soluble....
asked 11 months ago -
A facilities manager at a university reads in a research report
that the mean amount of...
asked 11 months ago -
When the CuSO4 is rehydrated by adding water to the anhydrous
compound, is this an endothermic...
asked 11 months ago -
A ray of sunlight is passing from diamond into crown glass; the
angle of incidence is...
asked 11 months ago -
A block of mass 0.249 kg is placed on top of a light, vertical
spring of...
asked 11 months ago -
how do the kidneys compensate in the presences of acidosis
a) trigger hyperventilate
b) reserve acid...
asked 11 months ago -
Question 501 pts
The rental rate of capital to the firm increases. Which of the
following...
asked 11 months ago