User Account

All Pages

Define what are the values of ka and pka of barbituic acid

Assignment Help Chemistry
Reference no: EM13719652

Question- A solution of equal concentrations of barbituric acid and sodium barbiturate was found to have a pH of 4.01.

a) What are the values of Ka and pKa of barbituic acid?

b) What would the pH be if the concentration of acid was twice the that of the salt?

Give your respond in scientific notation please provide detail solution for good grades

Reference no: EM13719652

Questions Cloud

Explain how many gallons of gasoline will be used : A certain hybrid has a mileage rating of 49 miles per gallon. if the car makes a trip of 263 miles, how many gallons of gasoline will be used? Show work please, it would be appreciated
Describe the optic foramen and canal : What is the difference between an optic foramen and canal?
Explain what is the percentage purity of the original sample : Suppose that 1.652 g of impure barium hydroxide is dissolved in enough water to produce 200. mL of solution and that 25.0 mL of this solution is titrated to the stoichiometric point with14.7 mL of 0.0825 M HCl(aq). What is the percentage purity of..
Write out the electron configuration : Write out the electron configuration, orbital diagram and note number of valence shell electrons for nitrogen.
Define what are the values of ka and pka of barbituic acid : A solution of equal concentrations of barbituric acid and sodium barbiturate was found to have a pH of 4.01. a) What are the values of Ka and pKa of barbituic acid
Light emitted when an electron in a hydrogen atom undergoes : What is the wavelength of light emitted when an electron in a hydrogen atom undergoes a transition from energy level n=4 to n=2?
What is kc at the temperature : Given the following equation, predict what will happen in the following scenarios: 2H2S(g) + O2(g) à 2S(s) + 2H2O(g) 1. If O2 is added, what happens to the concentration of [H2O]
Calculate the volume of air that a person exhales : Calculate the volume of air that a person exhales in an 16-hour period. Assume that each breath has a volume of about 1 L and the person exhales 15 times a minute
Determine the percentage of nitrogen in the mixture : A mixture of gases is prepared for laboratory experiments by combining 5.0 L of oxygen, 0.68 L of nitrogen, and 0.34 L of carbon dioxide. Determine the percentage of nitrogen in the mixture

Reviews

Write a Review

Chemistry Questions & Answers

  Explain the reaction flask instead of 1-hexene

Explain the effect of the following experimental errors on your results: a) You add hexane to the reaction flask instead of 1-hexene b) You use 3% hydrogen peroxide instead of 30% c) You forget to add potassium carbonate in the seperation step.

  What is the number of grams of c02 produced

what is the number of grams of C02 produced if you combust 0.50 ole of Ch4 according to the following balanced equation.

  Evaluate the value of n for the data in the equation

The H+ released in the eluate required 16.98 mL of 0.1024 M NaOH to reach a phenolphthalein end point. Calculate the percent zinc in the sample. Calculate the value of n for the data in the equation (the n on the H20).

  Explain substances is mixed with nai/acetone

Predict what you would expect to observe when each of the following substances is mixed with NaI/acetone. Would you expect a difference in their relative rates of reaction? Explain.

  Define what is the temperature inside the tank

A 21.40L gas cylinder has been filled with 3.186 moles of gas. You measure the pressure to be 3.260 atm . What is the temperature inside the tank

  Explain the z axis is collinear with the molecular axis

The linear molecule FeH2 has been observed in the gas phase. Assume that the iron atom can potentially use s, p, and d orbitals to interact with the hydrogens. If the z axis is collinear with the molecular axis

  Explain the chemical composition of the sterol

State the chemical composition of the sterol that is present in high levels in most people who belong to the high-risk group. Distinguish between the 'good' and 'bad' forms of this sterol.

  Explain what is the atomic weight of an element

What is the atomic weight of an element if 4.00 grams of it contain 2.98 x 10^22 atoms. A) 2.02 u B) 80.8 u C) 8.08 u D) 20.2 u E) 19.7 u

  Write the lewis structure for sef6 what is the general abx

write the lewis structure for sef6. what is the general abx structure shape name and molecular

  Compute the equilibrium constant reaction under standard

Based on the G°' reported above, compute the equilibrium constant (at 25°C) and then comment on the spontaneity forward, backwards or at equilibrium of this reaction under standard conditions.

  What volume of 050 m sodium hydroxide is needed to titrate

what volume of 0.50 m sodium hydroxide is needed to titrate 150 ml of 0.33 m hydrocyanic acid hcn to the equivalence

  How to calculate the redox potential

Chemically equivalent amounts of ferric and stannic ions, iron(III) and tin(IV) respectively, are mixed in solution. Calculate the redox potential.

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!

Submit Assignment

Academics

Major Subjects

Majors

Get In Touch

whatsapp: +1-415-670-9521

Phone: +1-415-670-9521

Email: [email protected]

TERMS & POLICIES

HELP & SUPPORT

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