Buffer 1 is created such that the weak acid, HA, is 0.80 M and base, A–...

Buffer 1 is created such that the weak acid, HA, is 0.80 M and base, A– , is 0.80 M. Buffer 2 is created such that the weak acid, HA, is 0.080 M, and base, A– , is 0.080M. Which buffer has the greater buffer capacity? Briefly explain

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queen_honey_blossom answered 2 years ago

A buffer solution contains both a weak acid (HA) and its conjugate base (A-) so buffers...

A buffer solution contains both a weak acid (HA) and its conjugate base (A-) so buffers do not have large changes in pH after addition of a small amount of strong acid or strong base. What is the pH of 500.0 mL of a buffer composed of acetic acid (0.300 moles) and sodium acetate (0.200 moles) before and after addition of solid sodium hydroxide (5.84 g)? Assume no change in volume with addition of NaOH. pKa = 4.756 for acetic...

What is the pH of a buffer solution that is composed of a weak acid, HA...

What is the pH of a buffer solution that is composed of a weak acid, HA (Ka=8.02×10–9), and the conjugate base, A–, after 3.24 mL of 0.089 M HCl solution is added. The initial concentrations of the 142 mL buffer solution are [HA]=0.58 M and [A–]=0.61 M. Enter your value to two (2) decimal places.

Weak base/ Strong acid titration curve question. 1) In the titration of .0400 M weak base...

Weak base/ Strong acid titration curve question. 1) In the titration of .0400 M weak base B of 50 ml with .100 M HCl. What is the solution pH before any HCl is added? 2) In the titration of .0400 M weak base B of 50 ml with .100 M HCl. What is the solution pH after 10 ml HCl is added? 3) In the titration of .0400 M weak base B of 50 ml with .100 M HCl. What...

Consider a monoprotic weak acid (HA) that is titrated with a strong base. What is the...

Consider a monoprotic weak acid (HA) that is titrated with a strong base. What is the relationship between the strength of the weak acid and the pH of the solution at the equivalence point? There is no relationship between the strength of the acid and the pH at the equivalence point. The pH at the equivalence point is always 7 in an acid base titration. The weaker the acid, the higher the pH at the equivalence point. The stronger the...

A 0.20 M solution of the weak acid HA is 5.5 % ionized HA + H2O...

A 0.20 M solution of the weak acid HA is 5.5 % ionized HA + H2O --> H3O+ + A- a.Calculate the [H3O+] b.Calculate the [A- ] c.Calculate the [HA] at equilibrium d.Calculate the Ka for the acid e.Calculate the pH of the solution

A buffer is prepared by combining a weak acid or base with its conjugate form. A...

A buffer is prepared by combining a weak acid or base with its conjugate form. A buffer is made using 0.1 M KH2PO4 and 0.1 M K2HPO4. Which component of the buffer is the acid and A)which is the conjugate base? B)write the equation for the reaction between the buffer and the strong acid,HCL? C)write the equation for the reaction between the buffer and the strong base,NaOH? d)if the pKa of the weak acid is 7.21, using the Henderson Hasselbach...

When a weak acid (HA) is titrated with NaOH (a strong base), (a) what species...

When a weak acid (HA) is titrated with NaOH (a strong base), (a) what species are present in the weak acid solution before the titration is started? (b) what species is/are decreasing during the titration? (c) what species is/are increasing during the titration? (d) what species is/are not involved in the reaction? (e) what is meant by the equivalence point? (f) what important species concentration increases after the equivalence point?

Find an appropriate buffer system (include the weak acid/base and conjugate base/acid salt) to make 1.0...

Find an appropriate buffer system (include the weak acid/base and conjugate base/acid salt) to make 1.0 M buffer at pH 7.3.

A buffer that contains 0.18 M of an acid, HA and 0.49 M of its conjugate...

A buffer that contains 0.18 M of an acid, HA and 0.49 M of its conjugate base A-, has a pH of 3.71. What is the pH after 0.041 mol of HCl are added to 0.79 L of the solution?

V. Buffer Solution from Strong Base and Weak Acid Measure out 30.0 mL of 1.0 M...

V. Buffer Solution from Strong Base and Weak Acid Measure out 30.0 mL of 1.0 M CH3COOH and 5.0 mL of 1.0 M NaOH into a beaker. 1. Calculate the total volume. (include units) Vol _________ 2. What is the concentration of acetic acid in this solution after mixing. (include units) [CH3COOH] _______ 3. What is the concentration of sodium hydroxide in this solution after mixing. (include units) [NaOH] __________ 4. Calculate the expected pH of this buffer solution. pH...

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