Homework Answers
If you think 700 M is correct then you can easily substitute
0.700 by 700 then you wont get the answer in given options but will
get a value more than 7 which is not possible in case of acidic
buffer. It should be less than 7 for acidic buffer at 25 degree
Celsius
Add Answer to:
Question 10 0.59 pts What is the pH of a buffer made using 45.0 mL of...
If a buffer solution is 0.130 M in a weak acid (K) = 7.2 x 10-5)...
If a buffer solution is 0.130 M in a weak acid (K) = 7.2 x 10-5) and 0.580 M in its conjugate base, what is the pH? pH = A 1.50 L buffer solution consists of 0.328 M propanoic acid and 0.165 M sodium propanoate. Calculate the pH of the solution following the addition of 0.070 mol HCl. Assume that any contribution of the HCl to the volume of the solution is negligible. The K, of propanoic acid is 1.34...
You are instrucbed to create 900. mL of a 0.59 M phosphate buffer with a pH...
You are instrucbed to create 900. mL of a 0.59 M phosphate buffer with a pH of 6.4. You have phosphoric acid and the sodium salts NaH2PO4, Na2HPO4, and Na3PO4 available. numerical answers to three significant H3PO4(s)H20)H3 aH2PO4(aq) H2PO4-(aq) + H2O(りーH3O + (aq) + HP042-(aq) Ka2-6.2×10-8 HPO()H20()H3)PO43 (aq) Ka 4.8x10-13 Ka 6.9x10-2 Which of the available chemicals will you use for the acid component of your buffer? O H3PO4 O Na2HPO Na3PO4 Which of the available chemicals will you use...
A buffer is made using 48.0 mL of 0.770 M HC3H5O2 (Ka = 1.3 ✕ 10−5)...
A buffer is made using 48.0 mL of 0.770 M HC3H5O2 (Ka = 1.3 ✕ 10−5) and 48.0 mL of 0.690 M NaC3H5O2. What volume of 0.17 M NaOH must be added to change the pH of the original buffer solution by 1.6%? (Do not round intermediate steps.)
Question 10 (of 15) alue: 00 points 3 attempts left Check work my Enter your answer...
Question 10 (of 15) alue: 00 points 3 attempts left Check work my Enter your answer in the provided box. A buffer solution is prepared in such a way that the concentration of propanoic acid is 1.92 x 10 Mand the concentration of sodium propanoate is 1.51 x 10 M. If the buffer equilibrium is described by C2HCOOH(aq) + H,O) H0 (aq) + C2H2COO (aq) propanoic acid propanoate ion with K, 1.34 x 10, calculate the pH of the solution....
i need help on C This question has multiple parts. Work all the parts to get the most points. buffer consists of 0.9...
i need help on C
This question has multiple parts. Work all the parts to get the most points. buffer consists of 0.96-M propanoic acid (K, -1.4 x 10 ) and 0.88-M sodium propanoate a Calculate the pH of this buffer. pH = 4.81 0 Correct b Calculate the pH after the addition of 2.1 mL of 0.10 M HCl to 0.010 L of the buffer. pH = 4.79 vô Correct C Calculate the pH after the addition of 8.8...
Question a) You have made 100.00 mL of a buffer solution using 82.34 mL of 0.1000...
Question a) You have made 100.00 mL of a buffer solution using 82.34 mL of 0.1000 M acetic acid and 17.66 mL of 0.1000 M sodium acetate. What would be the expected pH of this buffer solution? b) If 0.50 mL of 6.0 M HCl were added to the buffer from the previous question would the pH go up, go down, or stay the same?
What is the pH of a buffer made by combining 181 mL of 0.34 M NaC2H2O2...
What is the pH of a buffer made by combining 181 mL of 0.34 M NaC2H2O2 with 170 mL of 0.28 M HC2H2O2? The K, of acetic acid is 1.75 x 10-5. 4.88 4.64 O 5.93 4.83 O 5.38
A 1.42 L buffer solution consists of 0.322 M propanoic acid and 0.162 M sodium propanoate....
A 1.42 L buffer solution consists of 0.322 M propanoic acid and 0.162 M sodium propanoate. Calculate the pH of the solution following the addition of 0.061 mol HCl. Assume that any contribution of the HCl to the volume of the solution is negligible. The K, of propanoic acid is 1.34 x 10-5. pH=
A 1.32 L buffer solution consists of 0.267 M propanoic acid and 0.129 M sodium propanoate....
A 1.32 L buffer solution consists of 0.267 M propanoic acid and 0.129 M sodium propanoate. Calculate the pH of the solution following the addition of 0.073 mol HCI. Assume that any contribution of the HC) to the volume of the solution is negligible. The K. of propanoic acid is 1.34 x 10-5. pH =
A 1.46 L buffer solution consists of 0.264 M propanoic acid and 0.112 M sodium propanoate....
A 1.46 L buffer solution consists of 0.264 M propanoic acid and 0.112 M sodium propanoate. Calculate the pH of the solution following the addition of 0.067 mol HCl . Assume that any contribution of the HCl to the volume of the solution is negligible. The K a of propanoic acid is 1.34 × 10 − 5 .
If a buffer solution is 0.130 M in a weak acid (K) = 7.2 x 10-5) and 0.580 M in its conjugate base, what is the pH? pH = A 1.50 L buffer solution consists of 0.328 M propanoic acid and 0.165 M sodium propanoate. Calculate the pH of the solution following the addition of 0.070 mol HCl. Assume that any contribution of the HCl to the volume of the solution is negligible. The K, of propanoic acid is 1.34...
You are instrucbed to create 900. mL of a 0.59 M phosphate buffer with a pH of 6.4. You have phosphoric acid and the sodium salts NaH2PO4, Na2HPO4, and Na3PO4 available. numerical answers to three significant H3PO4(s)H20)H3 aH2PO4(aq) H2PO4-(aq) + H2O(りーH3O + (aq) + HP042-(aq) Ka2-6.2×10-8 HPO()H20()H3)PO43 (aq) Ka 4.8x10-13 Ka 6.9x10-2 Which of the available chemicals will you use for the acid component of your buffer? O H3PO4 O Na2HPO Na3PO4 Which of the available chemicals will you use...
Question 10 (of 15) alue: 00 points 3 attempts left Check work my Enter your answer in the provided box. A buffer solution is prepared in such a way that the concentration of propanoic acid is 1.92 x 10 Mand the concentration of sodium propanoate is 1.51 x 10 M. If the buffer equilibrium is described by C2HCOOH(aq) + H,O) H0 (aq) + C2H2COO (aq) propanoic acid propanoate ion with K, 1.34 x 10, calculate the pH of the solution....
i need help on C
This question has multiple parts. Work all the parts to get the most points. buffer consists of 0.96-M propanoic acid (K, -1.4 x 10 ) and 0.88-M sodium propanoate a Calculate the pH of this buffer. pH = 4.81 0 Correct b Calculate the pH after the addition of 2.1 mL of 0.10 M HCl to 0.010 L of the buffer. pH = 4.79 vô Correct C Calculate the pH after the addition of 8.8...
What is the pH of a buffer made by combining 181 mL of 0.34 M NaC2H2O2 with 170 mL of 0.28 M HC2H2O2? The K, of acetic acid is 1.75 x 10-5. 4.88 4.64 O 5.93 4.83 O 5.38
A 1.42 L buffer solution consists of 0.322 M propanoic acid and 0.162 M sodium propanoate. Calculate the pH of the solution following the addition of 0.061 mol HCl. Assume that any contribution of the HCl to the volume of the solution is negligible. The K, of propanoic acid is 1.34 x 10-5. pH=
A 1.32 L buffer solution consists of 0.267 M propanoic acid and 0.129 M sodium propanoate. Calculate the pH of the solution following the addition of 0.073 mol HCI. Assume that any contribution of the HC) to the volume of the solution is negligible. The K. of propanoic acid is 1.34 x 10-5. pH =
Most questions answered within 3 hours.
-
Where is the error in this code sequence?
String s1 = "Hello";
String s2 = "ello";...
asked 10 months ago -
Financial data for Joel de Paris, Inc., for last year
follow:
Joel de Paris, Inc.
Balance...
asked 10 months ago -
Consider this reaction:
Al2(SO4)3 (aq)+ BaCl3
(aq) Al2Cl6 (aq)- +
3BaSO4(s) . What is the...
asked 10 months ago -
Suppose that Savneet is considering increasing her
recent random sample from 20 car rentals to 40...
asked 10 months ago -
Trucks arrive at an unloading terminal at an average rate of 120
per hour.
Trucks arrive...
asked 10 months ago -
Why are methanol and ethanol completely soluble in water while
octanol is not very little soluble....
asked 10 months ago -
A facilities manager at a university reads in a research report
that the mean amount of...
asked 10 months ago -
When the CuSO4 is rehydrated by adding water to the anhydrous
compound, is this an endothermic...
asked 10 months ago -
A ray of sunlight is passing from diamond into crown glass; the
angle of incidence is...
asked 10 months ago -
A block of mass 0.249 kg is placed on top of a light, vertical
spring of...
asked 10 months ago -
how do the kidneys compensate in the presences of acidosis
a) trigger hyperventilate
b) reserve acid...
asked 10 months ago -
Question 501 pts
The rental rate of capital to the firm increases. Which of the
following...
asked 10 months ago