Conjugate base will form a buffer

Assignment Help Chemistry
Reference no: EM13694377

Question- Which of the following acids, (listed with Ka values), and their conjugate base will form a buffer with a pH of 2.34?

HF, Ka = 3.5 x 10 -4

HClO, Ka = 2.9 x 10 -8

C6H5COOH, Ka = 6.5 x 10 -5

HCN, Ka = 4.9 x 10 -10

HClO2, Ka = 1.1 x 10 -2

If possible just a brief explanation how you got the answer?

Reference no: EM13694377

Questions Cloud

What is the net ionic equation including phases : Question- Another metal phosphate is nickel phosphate. It will behave similar to calcium phosphate in an acid solution. What is the net ionic equation including phases for NiPO4(s) dissolving in H3O+(aq)
Why is 3-methylcyclohexene the major product : Question- Why is 3-methylcyclohexene the major product of this reaction instead of 1-methylcyclohexene? Explain based on the reaction mechanism.
What is the change in enthalpy under standard conditions : Question- What is the change in enthalpy (in kJ) under standard conditions when 26.91 g of potassium hydroxide dissolves in water
Calculate the molarity of the cocl2 solution : Weight 8.916 g CoCl2. 6H2O and dissolve it in 250 mL volumetric flask. Calculate the molarity of the CoCl2 solution prepared. Molecular weight of 6H2O= 237.9908g/mol
Conjugate base will form a buffer : Question- Which of the following acids, (listed with Ka values), and their conjugate base will form a buffer with a pH of 2.34?
Explain reaction is spontaneous under standard conditions : Question- Calculate G for the following reactions and state whether each reaction is spontaneous under standard conditions at 298 K.
Calculate the ph after koh addition : Question- A buffer is prepared from 0.25 mol benzoic acid and 0.15 mol sodium benzoate in 500 mL solution. a. What is the pH of the buffer? b. If 6.2 g of KOH are added to the buffer will the capacity be exceeded? c. Calculate the pH after KOH add..
Draw the lewis structures with the formal charges minimized : The N atoms in the pyridine are opposite each other in the ring with 2 carbons between them in either direction. Indicate resonance with a double headed arrow between the structures. Draw the Lewis structures with the formal charges minimized.
What would the final temperature of the water be : Question- A piece of iron (mass = 25.0 g) at 398 K is placed in a Styrofoam coffee cup containing 25.0mL of water at 298 K. Assuming that no heat is lost to the cup or surroundings, what would the final temperature of the water be

Reviews

Write a Review

Chemistry Questions & Answers

  Define pyruvate dehydrogenase and the citric acid cycle

If you have three pyruvate molecules each labeled with 14C at different positions (one is labeled at the carboxyl, one at the carbonyl, and one at the methyl), feed them sequentially to pyruvate dehydrogenase and the citric acid cycle,

  Explain what is the total volume of the mixture

A 75.0 g sample of a pure liquid, liquid A with a density of 3.00 g/mL is mixed with a 50.0mL sample of a pure liquid, liquid B with a density of 2.00 g/mL. Explain what is the total volume of the mixture. Presume there is no reaction upon the mi..

  Define reactivity of 4-trifluoromehylbenzaldehyde

What wold you prodict for the relative reactivity of 4-trifluoromehylbenzaldehyde in this aldol condensation reaction.

  Clculate the free energy difference g at 37oc due to an

calculate the free energy difference ?g at 37oc due to an glucose gradient across the membrane of a phospholipid

  State balanced net ion for each reaction

Balance the following equations and write balanced net ion for each reaction. a) HBR(aq) + Ca(OH)2 (aq) b) net ionic equation C) Fe(OH)3 (aq) + H2SO4 (aq) d) net ionic quation

  Explain what is the heat capacity of the calorimeter

After adding the two portions into the calorimeter setup and following the procedure outlined in the experiment, you determine the temperature of the mixed portions of water to be 45*C. what is the heat capacity of the calorimeter?

  Explain the concentration of the sulfuric acid

You have a 4 L bottle of sulfuric acid solution. You take 50.0 mL of this H2SO4(aq) solution and titrate it to the endpoint with a 0.10 M NaOH solution. If the volume of NaOH solution needed is 60.0 mL, the concentration of the sulfuric acid (H2SO..

  Explain the original concentration of the v3+ solution

A 25.0 ml solution of .0600 M EDTA was added to a 57.0 ml sample containing an unknown concentration of V3+. All V3+ present formed a complex, leaving excess EDTA in solution.

  Explain what is the molar concentration of the acid of naoh

A standard solution of 0.243 M NaOH was used to determine the concentration of a hydrochloric acid solution. If 46.33 mL of NaOH is needed to neutralize 10.00 mL of the acid, what is the molar concentration of the acid

  Calculate the molar mass of the biomolecule

A 1.80-g sample of a large biomolecule was dissolved in 21.0 g of carbon tetrachloride. The boiling point of this solution was determined to be 77.85°C

  Calculate the volume of propylene glycol in gallons needed

to obtain the same antifreeze protection requires 76 of propylene glycol to replace each 62 of ethylene glycol.

  Which substance attains the highest temperature

Consider the following specific heats: copper, 0.384 J/g·?C; lead, 0.159 J/g·?C; water, 4.18J/g·?C; glass, 0.502J/g·?C. If the same amount of heat is added to identical masses of each of these substance

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd