Consider a 1.0 L buffer containing 0.092 mol L-1 HCOOH and 0.100 mol L-1 HCOO-. What...
Consider a 1.0 L buffer containing 0.092 mol L-1 HCOOH and 0.100 mol L-1 HCOO-. What is the pH of the solution after adding 1.9 x 10-3 mol of HCl? Express your answer to 2 decimal places.
Homework Answers
Molarity of hcl = moles / volume
= 1.9*10^-3 / 1
= 1.9*10^-3 M
Now it will reduce the amount of conjugate base and increases the amount of acid
Base = 0.1 - (1.9*10^-3 )
= 0.0981
Acid = 0.092 + (1.9*10^-3 )
= 0.0939
pKa of HCOOH = 3.8
pH = pKa + log ( conjugate base / acid )
= 3.8 + log ( 0.0981 / 0.0939)
= 3.82
If you have any query please comment
If you satisfied with the solution please like it thankxx
Add Answer to:
Consider a 1.0 L buffer containing 0.092 mol L-1 HCOOH and 0.100
mol L-1 HCOO-. What...
1. Consider a 1.0 L buffer containing 0.102 mol L-1 HOCl and 0.103 mol L-1 OCl-....
1. Consider a 1.0 L buffer containing 0.102 mol L-1 HOCl and 0.103 mol L-1 OCl-. What is the pH of the solution after adding 2.8 x 10-3 mol of HCl? Express your answer to 2 decimal places. 2. What is the pH of a solution containing 0.179 mol L-1 HF and 0.329 mol L-1 F- ? Round your answer to 2 decimal places. 3. 15.4 mL solution of 0.100 mol L-1 NaOH is titrated using 0.150 mol L-1 HCl....
Consider a 1.0 L buffer containing 0.109 mol L-1 HOCl and 0.095 mol L-1 OCl-. What...
Consider a 1.0 L buffer containing 0.109 mol L-1 HOCl and 0.095 mol L-1 OCl-. What is the pH of the solution after adding 7.2 x 10-3 mol of NaOH? Express your answer to 2 decimal places.
Consider a 1.0 L buffer containing 0.086 mol L-1 HOCI and 0.089 mol L-1 ocr. What...
Consider a 1.0 L buffer containing 0.086 mol L-1 HOCI and 0.089 mol L-1 ocr. What is the pH of the solution after adding 3.1 x 103 mol of HCI? Express your answer to 2 decimal places.
can someone please help me with these 3 questions? Consider a 1.0 L buffer containing 0.098...
can someone please help me with these 3 questions?
Consider a 1.0 L buffer containing 0.098 mol L. HCOOH and 0.107 mol L'HCOO : What is the pH of the solution after adding 7.8 x 10-3 mol of NaOH? Express your answer to 2 decimal places. You have 5 attempts at this question. Remember you can find KA and/or Kg values in your textbook in chapter 15. Answer: Check What is the pH of a solution containing 0.489 mol L...
A chemist prepared an aqueous buffer containing both formic acid (HCOOH) and the formate anion. The...
A chemist prepared an aqueous buffer containing both formic acid (HCOOH) and the formate anion. The volume of the buffer is 100 mL ; with [HCOOH] = 0.110 mol L-1 and [HCOO- ] = 0.101 mol L-1 . The pKa of HCOOH = 3.74. What is the pH of this buffer? Write down the balanced chemical equation that describes the reaction of this buffer when an HCl solution is added. c) What is the resultant pH of this solution after...
A 1.0-L buffer solution contains 0.100 mol HC2H3O2 and 0.100 mol NaC2H3O2. The value of Ka for HC2H3O2 is 1.8×10−5. Ca...
A 1.0-L buffer solution contains 0.100 mol HC2H3O2 and 0.100 mol NaC2H3O2. The value of Ka for HC2H3O2 is 1.8×10−5. Calculate the pH of the solution, upon addition of 0.070 mol of NaOH to the original buffer. Express your answer using two decimal places.
1.What is the pH at which a buffer composed of NH3 and NH4+ would be most...
1.What is the pH at which a buffer composed of NH3 and NH4+ would be most effective at resisting pH change? Round your answer to 2 decimal places. Remember you can find KA and/or KB values in your textbook in chapter 15. 2. Consider a 1.0 L buffer containing 0.119 mol L-1 HF and 0.081 mol L-1 F-. What is the pH of the solution after adding 5.7 x 10-3 mol of NaOH? Express your answer to 2 decimal places....
A 15.0 mL solution of 0.100 mol L-1 NaOH is titrated using 0.150 mol L-1 HCl....
A 15.0 mL solution of 0.100 mol L-1 NaOH is titrated using 0.150 mol L-1 HCl. What is the pH of the solution after 1.33 mL of the HCl solution is added? Express your answer to 2 decimal places
A 1.0-L buffer solution contains 0.100 mol HC2H3O2 and 0.100 mol NaC2H3O2. The value of Ka...
A 1.0-L buffer solution contains 0.100 mol HC2H3O2 and 0.100 mol NaC2H3O2. The value of Ka for HC2H3O2 is 1.8×10^−5. Calculate the pH of the solution upon addition of 25.8 mL of 1.00 MHCl to the original buffer.
A 18.3 mL solution of 0.100 mol L-1 HCl is titrated using 0.150 mol L-'NaOH. What...
A 18.3 mL solution of 0.100 mol L-1 HCl is titrated using 0.150 mol L-'NaOH. What is the pH of the solution after 14.4 mL of the NaOH solution is added? Express your answer to 2 decimal places. You have 5 attempts at this question. Remember you can find KA and/or Kg values in your textbook in chapter 15. Answer: Check A 12.1 ml solution of 0.100 mol L-' HF is titrated using 0.150 mol L- NaOH. What is the...
Consider a 1.0 L buffer containing 0.086 mol L-1 HOCI and 0.089 mol L-1 ocr. What is the pH of the solution after adding 3.1 x 103 mol of HCI? Express your answer to 2 decimal places.
can someone please help me with these 3 questions?
Consider a 1.0 L buffer containing 0.098 mol L. HCOOH and 0.107 mol L'HCOO : What is the pH of the solution after adding 7.8 x 10-3 mol of NaOH? Express your answer to 2 decimal places. You have 5 attempts at this question. Remember you can find KA and/or Kg values in your textbook in chapter 15. Answer: Check What is the pH of a solution containing 0.489 mol L...
A 18.3 mL solution of 0.100 mol L-1 HCl is titrated using 0.150 mol L-'NaOH. What is the pH of the solution after 14.4 mL of the NaOH solution is added? Express your answer to 2 decimal places. You have 5 attempts at this question. Remember you can find KA and/or Kg values in your textbook in chapter 15. Answer: Check A 12.1 ml solution of 0.100 mol L-' HF is titrated using 0.150 mol L- NaOH. What is the...
Most questions answered within 3 hours.
-
If the wage rate increases from $12 to $16 and, as a result, the
quantity demanded...
asked 2 minutes ago -
the slime layer external to the prokaryotic cell wall is called
the ?
asked 11 minutes ago -
Cheyenne Company must decide whether to make or buy some of its
components. The costs of...
asked 13 minutes ago -
What is the maximum number of edges that a graph on 7 vertices can
have if...
asked 12 minutes ago -
What is the entropy change for mixing 1 liter of a monoatomic
ideal gas (call it...
asked 11 minutes ago -
A company that has 150 employees chooses a committee of 11 to
represent employee retirement issues....
asked 33 minutes ago -
the
force between two 2.11 x 10^-4 C charges that are 2.11 meters apart
is ______N?
asked 48 minutes ago -
A truck of mass m slows from speed v0 to speed v in a
time t....
asked 34 minutes ago -
A 60kg box rests on a floor with a coefficient of kinetic
friction of 0.600 and...
asked 31 minutes ago -
if you cut off ANS innervation what would happen to the heart
rate?
asked 31 minutes ago -
What is the output of the below code?
var color = "yellow";
var colorObject = {...
asked 32 minutes ago -
Suppose you purchased 19 shares of Disney stock for $23.95 per
share on May 1, 2012....
asked 35 minutes ago