What is the ph of the buffer

Assignment Help Chemistry
Reference no: EM13162297

A buffer solution was prepared by adding 4.95 g of sodium acetate, NaCH3CO2, to 2.50 x 10^2 mL of 0.150 M acetic acid, CH3CO2H.

What is the pH of the buffer?

Reference no: EM13162297

Questions Cloud

Draw the lewis structure of the molecule : Draw the Lewis structure of the molecule, assuming that the Cl atoms bond to a single C atom and that there is a C -C bond and two C - O bonds in the compound.
What are the active ingredients : What are the active ingredients & determine what possible tests to perform to identify each active ingredient. (what is the expected result?) - can't use melting points, boiling points, burning of solids, benedict's solution and tasting.
Explain what is the net ionic equation for the reaction : Calculate the heat evolved when 75.0 mL of a 2.00M HCl solution reacts with 37.5 mL of a 4.00M NaOH solution if the temperature rises from 20.0 degree C to 37.9 degree
What factors will determine the best number of firms : Why should this employee probably choose to tell only some of the other firms rather than all of them and what factors will determine the best number of firms to sell the secret to?
What is the ph of the buffer : A buffer solution was prepared by adding 4.95 g of sodium acetate, NaCH3CO2, to 2.50 x 10^2 mL of 0.150 M acetic acid, CH3CO2H. What is the pH of the buffer?
Calculate the enthalpy change : Assume that the specific heat and density of the resulting solution are equal to those of water [4.18 rm J/(g cdot {^circ C}) and 1.00 rm g/mL] and that no heat is lost to the calorimeter itself, nor to the surroundings.
Find the velocity of an electron emitted by a metal : Find the velocity of an electron emitted by a metal whose threshold frequency is 2.15×1014 {rm s^{-1}} when it is exposed to visible light of wavelength 4.76×10-7 {rm m}.
Explain sample of aspirin prepared in the laboratory : Explain 3-A 0.421 g sample of aspirin prepared in the laboratory is dissolved in 95% ethanol, diluted with water, and titrated to a phenolphthalein endpoint with 17.3 mL of 0.114 M NaOH. What is the percent purity of aspirin in the sample?
Use the chemical formula to determine the number of moles : First determine the number of moles of rm Na^+ using the given molarity and volume. Next, use the chemical formula to determine the number of moles of rm Na_3PO_4 needed. Finally, convert moles to grams using the molecular weight of the compound.

Reviews

Write a Review

Chemistry Questions & Answers

  How many molecules of carbon dioxide are produced

How many molecules of carbon dioxide are produced when 149 molecules of acetylene (HCCH) to react in excess oxygen produce carbon dioxide and water?

  What is the chemical formula for this compound

Fumaric acid, which occurs in many plants, contains 41.4% C, 3.47% H, and 55.1% O by mass. A 0.5 mol sample of this compound has a mass of 58.0 g.

  Explain data for the decomposition of hydrogen peroxide

Data for the decomposition of hydrogen peroxide at some set temperature T is provided below. The rate law depends only on the concentration of H2O2

  Determine the mass composition of vitamin c

In combustion analysis, 2.00mg of vitamin C yielded 3.00mg CO2 and 0.816mg H2o. From mass spectrometry, it was found that the molecular weight of vitamin C is 176amu. Determine the mass composition of vitamin C, its empirical formula, and its molecul..

  Giving examples give the mechanisms of aldol condensation

Giving examples give the mechanisms of Aldol condensation between two molecules of aldehydes and two molecules of ketones

  Determine the number of bromine molecules in flask

A flask contains 0.250 mol of liquid bromine, Br2. Determine the number of bromine molecules present in the flask.

  How many grams of silver chloride will be produced

How many grams of silver chloride will be produced if 216 grams of silver is allowed to react with an unlimited amount of chlorine?

  Which one is oxidized by using oxidation number concept

N2O4(g) + KCl(s) → NOCl(g) + KNO3(s) Find out oxidation number of each and find which one is reduced and which one is oxidized by Using oxidation number concept? Also write net ionic equation and ionic equation.

  What is the chemical name for cuso4

What is the chemical name for CuSO4? a. Copper sulphate b. Copper sulphur oxide c. Copper (II) sulphate d. Copper (I) sulphate

  What is the percent by mass of sugar

A sugar-water mixture contains 45.8 g of sugar and 108.5 g of water. What is the percent by mass of sugar and the percent by mass of water in the solution?

  How many moles of oxygen are needed

How many moles of O2 are needed to consume 0.52 mol of Mg in the following unbalanced reaction? Mg + O2-> MgO

  Explain an energy maximum in a reaction-energy diagram

An energy maximum in a reaction-energy diagram would be labeled as which of the following?

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