Calculate the ph of a buffer formed

Assignment Help Chemistry
Reference no: EM13146289

Calculate the pH of a buffer formed by mixing 95 mL of 0.13 M lactic acid with 85 mL of 0.15 M sodium lactate.

Reference no: EM13146289

Questions Cloud

Spend on security analysis : You are an investment manager who is currently managing assets worth $6 billion. You believe that active management of your fund could generate between an additional one tenth of one percent return on the portfolio. If you want to make sure your a..
Calculate the number of grams of acetic acid : calculate the number of grams of acetic acid per 10ml of the vinegar. Since vinegar has a density of about 1.00 gram/ml, 100 ml eighs about 100 g.
Draw the shape of the molecules and the orbital geometry : draw the shape of the molecules and give the orbital geometry around the central atom; the molecular geometry; and give the hybridization state
Perform five-step hypothesis test on data pertaining : Formulate both a numerical and verbal hypothesis statement regarding your research issue. Perform the five-step hypothesis test on data pertaining to your selection.
Calculate the ph of a buffer formed : Calculate the pH of a buffer formed by mixing 95 mL of 0.13 M lactic acid with 85 mL of 0.15 M sodium lactate.
“money market” debt instruments and “capital market” debt : Describe the difference between “money market” debt instruments and “capital market” debt instruments, and provide at least 2 examples of each type. Hint: See chapter 2 of the text.
One-half of retirement savings : You can tax shelter only one-half of your retirement savings. You want to invest one-half of your savings in bonds and one-half in stocks. How much of the bonds and how much of the stocks should you allocate to the tax sheltered investment?
Write the rate law for the reaction : the decomposition of N2O5 in carbon tetrachloride proceeds as follows: 2 N2O5 -> 4 NO2 + O2. The rate law is first order in N2O5. At 64 degree celcius the rate constant is 4.82 x 10^ 3 s ^ -1.
Why a score on the act test is better : Scores on the ACT test have a mean of 21.1 and a standard deviation of 4.8. which is relatively better: a score of 1840 on he SAT or a score of 26.0 on the ACT test? why?

Reviews

Write a Review

Chemistry Questions & Answers

  What mass of solid sodium formate must be added

What mass of solid sodium formate (of MW 68.01) must be added to 140 mL of 0.3 mol/L formic acid (HCOOH) to make a buffer solution having a pH of 3.77? Ka = 0.00018 for HCOOH.

  How high (in meters) can the person climb

A 43 kg person drinks 450. g of milk, which has a "caloric" value of approximately 3.0 kJ/g. If only 17% of the energy in milk is converted to mechanical work, how high (in meters) can the person climb based on this energy intake.

  Calculate the ph

Calculate the pH of the following aqueus solution: 0.61 M NH4Cl (pKb for NH3=4.74)

  What mass of hclo4 should be present

What mass of HClO4 should be present in 0.600 L of solution to obtain a solution with a pH of 2.50?

  Find the temperature at which ethanol boils

Find the temperature at which ethanol boils on a day in the mountains when the barometric pressure is 547 mmHg.  (Given: The heat of vaporization of ethanol is 39.3 kJ/mol; the normal boiling point of ethanol is 78.3°C.)

  Calculating mass of the product

For each reaction, calculate the mass (in grams) of the product formed when 10.1g of the underlined reactant completely reacts. Assume that there is more than enough of the other reactant.

  What is the volume of a gas

What is the volume of a gas at T=35.0C and P=675 torr if the same sample occupied 42.6L at T=-27.3C and P=1.000 atm.

  What is the change in the volume

When scuba diving, it is important to come back to the surface of the water from deep dives slowly. If this does not happen, then the diver can get the ?bends?.

  Calculate the partial pressure of each gas in the container

Three gases (8.00 of methane, CH4, 18.0 g of ethane, C2H6, and an unknown amount of propane, C3H8) were added to the same 10.0-L container. At 23.0 degrees C, the total pressure in the container is 3.70 atm.

  Converting between units of pressure

Calculating Pressures using different laws, Converting between Units of Pressure, Part A, Convert 0.700atm of pressure to its equivalent in millimeters of mercury.

  Define a solid mixture contains mgcl2 and nacl

A solid mixture contains MgCl2 and NaCl. When 0.5000 g of this solid is dissolved in enough water to form 1.000 L of solution, the osmotic pressure at 25°C

  What mass of hcn and of h2o will be produced

If 5.28 x 10^3 kg each of NH3, O2, and CH4 are reacted, what mass of HCN and of H2O will be produced, assuming 100% yield?

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