(Answered) Calculate the ph at the first equivalence point. dhow many

Academics

Weak diprotic acid H2A is titrated with 0.2000 M NaOH. The initial concentration of H2A is 0.1000 M and the initial volume is 50.00 mL. Ka1 = 1.0 x 10?5 Ka2 = 1.0 x 10?9 a) Identify the predominate species at the first equivalence point, by chemical formula: b) Calculate the pH of the solution before any base is added. c) Calculate the pH at the first equivalence point. d) How many mL base, total, must be added to achieve the 2nd equivalence point? e) Calculate the pH at the second equivalence point. f) ) From the attached table of acid/base indicator transition ranges (bottom half of p.7), identify an appropriate indicator for: i) the 1st equivalence point ii) the 2nd equivalence point:

View complete question

Chemistry, Academics

Category:- Chemistry
Reference No.:- M9487239
Price:- $15

Verified Expert

Priced at $30 Now at $15, Verified Solution

Have any Question?Write your Review or question?

Related Questions in Chemistry

What are the symbol and name of the element whose average

What are the symbol and name of the element whose average atoms have a mass very nearly half the mass of an average silicon atom?

A photon of wavelength 200 nm strikes the surface of a

A photon of wavelength 200 nm strikes the surface of a metal causing an electron to be ejected with kinetic energy of 4.3 x 10-19 J. What was the threshold frequency of the metal?

How is vacuum filtration completing the purification of

How is vacuum filtration completing the purification of your sample? Where are the impurities at this point? For a recrystallization lab in organic chemistry

The combustion of naphthalene c10h8 which releases 51501

The combustion of naphthalene (C 10 H 8 ), which releases 5150.1 kJ/mol, is often used to calibrate calorimeters. A 1.05 - g sample of naphthalene is burned in a calorimeter, producting a temperature rise of 3.86 degrees ...

Explain why the faster red particles in the video slow down

Explain why the faster red particles in the video slow down and the slower blue particles speed up when they come into contact with each other.

A 200 ml sample of 0200 m hbr solution is titratedwith 0200

A 20.0 mL sample of 0.200 M HBr solution is titratedwith 0.200 M NaOH solution. Calculate the pH of the solution after the following volumes of base have been added. (19.8 mL)

A 0235g sample of a solid is 925 naoh and 75 caoh2 by mass

A 0.235g sample of a solid is 92.5% NaOH and 7.5% Ca(OH)2, by mass requires 45.6mL of a HCl solution for its titration. What is HCl molarity?

What was the initial energy level of an electron if it was

What was the initial energy level of an electron if it was excited by a photon of wavelength 38.9µm and jumped to an energy level of 10?

Ttrate the base trimethylamine tma with 0126 m hcl ch3naq

Titrate the base trimethylamine (TMA) with 0.126 M HCl. (CH) 3 N(aq) + H 2 O(l) (CH 3 ) 3 NH+(aq) + OH-(aq) Kb = 6.45 x 10 -5 There are 0.00615 moles of TMA in 42.5 mL H 2 O before titration begins. What percent of TMA i ...

Label each of the following phase changes as either

Label each of the following phase changes as either exothermic or endothermic. i. H 2 O( s ) + heat H 2 O( l ) (1 point) ii. H 2 O( g ) H 2 O( l ) + heat (1 point)

4,153,160 Questions Asked
13,132 Experts
2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

Recent Questions

Ask Chemistry Expert