Homework Answers
![Hin po) & itt tln- (aq) 60) 2 pH= pka + Log C based Cacid] In general, [base = I for Cacid lo og Leasta Least. [ base Cacid]](http://img.homeworklib.com/questions/224aeb30-6fe4-11ea-ba7a-438ef5c3bc04.png?x-oss-process=image/resize,w_560)
Add Answer to:
A weak acid indicator HIn is blue while its conjugate base In is green. Kaln for...
A weak acid indicator Hin is blue while its conjugate base in is green. Kain for...
A weak acid indicator Hin is blue while its conjugate base in is green. Kain for the indicator is 4.7 x 10-5 Over what pH range does the indicator change color? lower pH upper pH
15. The acid-base indicator bromocresol green has a Ka of 6.3 x 10-5. Its protonated form...
15. The acid-base indicator bromocresol green has a Ka of 6.3 x 10-5. Its protonated form is yellow while its deprtonated form is blue. If bromocresol green is added to a colorless solution with a pH of 8, then what will the color be?
Methyl orange is an indicator with a Ka of 1 x 10-4. Its acid form, HIn,...
Methyl orange is an indicator with a Ka of 1 x 10-4. Its acid form, HIn, is red, while its base form, In-, is yellow. At pH 7.0, the indicator will be___________. a. red. b. orange. c. yellow. d. blue. e. not enough information
yellow blue or HIn is a weak acid with a pK, value of 5.0. It reacts...
yellow blue or HIn is a weak acid with a pK, value of 5.0. It reacts with water as represented in the sider the two beakers below. Each beaker has a layer of colorless oil (a nonpolon aqueous buffer layer of buffer solution is 7. A small and water layers are allowed to separate ucous buffer solution. In beaker X the pH of the buffer solution is 3, and in beaker Yth wate A small amount of HIn is placed...
Design a buffer that has a pH of 9.89 using one of the weak acid/conjugate base...
Design a buffer that has a pH of 9.89 using one of the weak acid/conjugate base systems shown below pК, к, Weak Acid Conjugate Base C202 НС-04 4.19 6.4x 10-5 НРО 2- Н.РОД 7.21 6.2 x 10-8 со,2- НСОЗ 4.8 x 10-11 10.32 How many grams of the potassium salt of the weak acid must be combined with how many grams of the potassium salt of its conjugate base, to produce 1.00 L of a buffer that is 1.00 M...
A weak base has Kb = . Calculate the hydrolysis constant, Ka, for the weak conjugate...
A weak base has Kb =
. Calculate the hydrolysis constant, Ka, for the weak conjugate
acid.
7.7.c10-10 A weak base has Kp = 7.7 x 10–10. Calculate the hydrolysis constant, Ka, for the weak conjugate acid. Ka=
Pre-Laboratory Questions: 1. Bromocresol green is chosen as the acid-base indicator. Within what pH range does...
Pre-Laboratory Questions: 1. Bromocresol green is chosen as the acid-base indicator. Within what pH range does it change color? What color should the indicator be at the endpoint of the titration? 2. Calculate the maximum number of moles of ammonia that can be generated when 1.073 grams of NH SCN reacts with excess Ca(OH)2, using all three possible reactions. 3. Calculate the number of moles of ammonia that must have reacted with boric acid if 21.55 ml of a 0.3143...
QUESTION 1 6 points Save Answer The purpose of an indicator in an acid-base titration is...
QUESTION 1 6 points Save Answer The purpose of an indicator in an acid-base titration is to indicate the of the titration. Use Table 10.2 for the following question. If an acidic solution is titrated with a basic solution and methyl violet is used as an indicator, the solution color will change from to QUESTION 2 3 points Save Answer The molarity of a solution prepared by dissolving 17.0 g of hydrochloric acid (HCI (aq) in 133 mL of water...
Design a buffer that has a pH of 4.77 using one of the weak acid/conjugate base...
Design a buffer that has a pH of 4.77 using one
of the weak acid/conjugate base systems shown below.
Weak Acid
Conjugate Base
Ka
pKa
HC2O4-
C2O42-
6.4×10-5
4.19
H2PO4-
HPO42-
6.2×10-8
7.21
HCO3-
CO32-
4.8×10-11
10.32
How many grams of the potassium salt of the
weak acid must be combined with how many grams of the
potassium salt of its conjugate base, to produce
1.00 L of a buffer that is 1.00 M
in the weak base?
grams potassium...
An acid-base indicator, Hin, dissociates according to the reaction shown in an aqueous solution. K. HIn...
An acid-base indicator, Hin, dissociates according to the reaction shown in an aqueous solution. K. HIn HIn(aq) In (aq) + H+ (aq) The protonated form of the indicator, HIn, has a molar absorptivity of 2089 M-.cm-1 and the deprotonated form, In, has a molar absorptivity of 14310 M-1.cm-1 at 440 nm. The pH of a solution containing a mixture of HIn and In is adjusted to 6.20. The total concentration of HIn and In is 0.000200 M. The absorbance of...
A weak acid indicator Hin is blue while its conjugate base in is green. Kain for the indicator is 4.7 x 10-5 Over what pH range does the indicator change color? lower pH upper pH
15. The acid-base indicator bromocresol green has a Ka of 6.3 x 10-5. Its protonated form is yellow while its deprtonated form is blue. If bromocresol green is added to a colorless solution with a pH of 8, then what will the color be?
yellow blue or HIn is a weak acid with a pK, value of 5.0. It reacts with water as represented in the sider the two beakers below. Each beaker has a layer of colorless oil (a nonpolon aqueous buffer layer of buffer solution is 7. A small and water layers are allowed to separate ucous buffer solution. In beaker X the pH of the buffer solution is 3, and in beaker Yth wate A small amount of HIn is placed...
Design a buffer that has a pH of 9.89 using one of the weak acid/conjugate base systems shown below pК, к, Weak Acid Conjugate Base C202 НС-04 4.19 6.4x 10-5 НРО 2- Н.РОД 7.21 6.2 x 10-8 со,2- НСОЗ 4.8 x 10-11 10.32 How many grams of the potassium salt of the weak acid must be combined with how many grams of the potassium salt of its conjugate base, to produce 1.00 L of a buffer that is 1.00 M...
A weak base has Kb =
. Calculate the hydrolysis constant, Ka, for the weak conjugate
acid.
7.7.c10-10 A weak base has Kp = 7.7 x 10–10. Calculate the hydrolysis constant, Ka, for the weak conjugate acid. Ka=
Pre-Laboratory Questions: 1. Bromocresol green is chosen as the acid-base indicator. Within what pH range does it change color? What color should the indicator be at the endpoint of the titration? 2. Calculate the maximum number of moles of ammonia that can be generated when 1.073 grams of NH SCN reacts with excess Ca(OH)2, using all three possible reactions. 3. Calculate the number of moles of ammonia that must have reacted with boric acid if 21.55 ml of a 0.3143...
QUESTION 1 6 points Save Answer The purpose of an indicator in an acid-base titration is to indicate the of the titration. Use Table 10.2 for the following question. If an acidic solution is titrated with a basic solution and methyl violet is used as an indicator, the solution color will change from to QUESTION 2 3 points Save Answer The molarity of a solution prepared by dissolving 17.0 g of hydrochloric acid (HCI (aq) in 133 mL of water...
Design a buffer that has a pH of 4.77 using one
of the weak acid/conjugate base systems shown below.
Weak Acid
Conjugate Base
Ka
pKa
HC2O4-
C2O42-
6.4×10-5
4.19
H2PO4-
HPO42-
6.2×10-8
7.21
HCO3-
CO32-
4.8×10-11
10.32
How many grams of the potassium salt of the
weak acid must be combined with how many grams of the
potassium salt of its conjugate base, to produce
1.00 L of a buffer that is 1.00 M
in the weak base?
grams potassium...
An acid-base indicator, Hin, dissociates according to the reaction shown in an aqueous solution. K. HIn HIn(aq) In (aq) + H+ (aq) The protonated form of the indicator, HIn, has a molar absorptivity of 2089 M-.cm-1 and the deprotonated form, In, has a molar absorptivity of 14310 M-1.cm-1 at 440 nm. The pH of a solution containing a mixture of HIn and In is adjusted to 6.20. The total concentration of HIn and In is 0.000200 M. The absorbance of...
Most questions answered within 3 hours.
-
a
62 kg sprinter, started from resr, runs 47 m in 7 s at a constant...
asked 38 seconds from now -
For python 3.7. This should only be a few lines if any, but for
some reason...
asked 10 minutes ago -
what is IoT? How is it being used today? How will it be used in
the...
asked 23 minutes ago -
Please answer the four questions below.
1. If you were going to test a method that...
asked 38 minutes ago -
Provide two or three examples of support he uses to reinforce
his arguments?
The Alienation of...
asked 45 minutes ago -
QUESTION 1
Why do we see terms with multiple names in the database
community?
Consistency is...
asked 40 minutes ago -
In a titration experiment, 11.5 mL of 0.400 M H2SO4 neutralized
48.0 mL of NaOH. What...
asked 45 minutes ago -
A shot-putter throws the shot with a horizontal velocity of 10
m/s and a
vertical velocity...
asked 1 hour ago -
Mildred sells industrial-sized refrigeration units. Her
prospective buyer's face looks tense, and his forehead is wrinkled....
asked 1 hour ago -
Clark Heter is an industrial engineer at Lyons Products. He
would like to determine whether there...
asked 1 hour ago -
3. Use a text editor to create a comma-delimited file of user
IDs and passwords. Revise...
asked 1 hour ago -
Jensen and Associates has a projected balance
sheet that includes the following accounts. What is the...
asked 1 hour ago