Explain what is the ph of the buffer

Assignment Help Chemistry
Reference no: EM13240491

A solution is prepared by dissolving 20.0 g of K2HPO4 and 25.0 g of KH2PO4 in enough water to produce 1.0 L of solution.

What is the pH of this buffer?

For phosphoric acid (H3PO4), Ka2 = 6.2 x 10-8.

Reference no: EM13240491

Questions Cloud

Value of the population mean given that their is a sample : Create a 95%confidence interval for the value of the population mean, given that their is a sample mean of 49 and a standard deviation of 3 but now found those valuesfrom a sample of only 20 observations.test the hypothesis allowing for type 1 error ..
Find the equivalent capacitance of all five : If you have five capacitors with capacitances 1.2×10-6 F, 3.2×10-6 F, 5.9×10-6 F, and two 6.4×10-6 F in series, What is the equivalent capacitance of all five
Does the agree with your hypothesis test?why or why not : Create a 95% confidence interval for the value of the population mean, given that their are 64 observations and a sample mean of 49, with a sample standard deviation of 3,test the hypothesis with an alpha equal to .05
Example of how each one has been applied in central america : Briefly explain the two doctrines, and give an example of how each one has been applied in Central America. Select an example of U.S. intervention in a Latin American country. Explain the reasons for the intervention and the outcome.
Explain what is the ph of the buffer : A solution is prepared by dissolving 20.0 g of K2HPO4 and 25.0 g of KH2PO4 in enough water to produce 1.0 L of solution. What is the pH of this buffer
Find the appropriate critical statistic for one tailed test : Find the appropriate critical statistic for : A one tailed test in the positive direction with 15 observations with alpha equal to 0.001.
Jewish population to move to middle eat and europe : The year the Romans exiled the Jews from Jerusalem causing Jewish population to move to Middle Eat and Europe.
Explain which one will have the higher molar entropy : For each pair of substances below, which one will have the higher molar entropy. Justify each choice with a brief explanation. Which substance has greater molar entropy. Why is its entropy greater
Critically analyse the case : Critically analyse the case and say whether or not you think that the plaintiff will succeed under the tort of negligence:

Reviews

Write a Review

Chemistry Questions & Answers

  Steps in the mechanism for the following reaction

Show all the steps in the mechanism for the following reaction, When benzene is mixed with deuterated sulfuric acid, deuterium is slowly incorporated onto the ring. Show the mechanism for this reaction and explain how this relates the sulfonation of ..

  Prior to placing piece of metal into the graduated cylinder

This assignment inhibits chemistry Laboratory Questions.

  Write the structures of the saytzeff elimination

Write the structures of the saytzeff elimination

  Calculate ph - chemistry questions

Chemistry Questions on Calculate P H

  How many mols of hydrogen can produce

how many mols of H 2 can produce

  Analysis of corrosion mechanisms

Analysis of corrosion mechanisms and preventative measures

  Chemical and pharmaceutical science

Write an equation for the formation of an acetal from reaction of excess methanol with benzaldehyde in the presence of an acid catalyst.

  Calculate the approximate sulphur

Calculate the approximate SO 2 mass emission in lb/day.

  What is the structure - stereochemistry

What is the structure (including functional groups)? Stereochemistry (racemic or single enantiomer)?

  Design a qualitative analysis scheme

Design a qualitative analysis scheme

  What will be the resultant pressure

What will be the resultant pressure when the stopcock is opened?

  The 1h nmr spectrum

Integrals for some of the resonances in the 1H NMR spectrum are higher than they should be due to the shear number of hydrogens in this compound

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