How to produce a buffer at ph

Assignment Help Chemistry
Reference no: EM13195287

How many mL of 12.0 M HCl should be added to 500 mL of 0.100 M Na2SO3 (Kb2 = 8.13 x 10-13 and Kb1 =1.5 x 10-7) to produce a buffer at pH of 7.00? Assume no volume change.

Reference no: EM13195287

Questions Cloud

How fast is the radius of the semicircle increasing : An Isosceles triangle is inscribed in a semicircle, as shown in the diagram, and it continues to be inscribed as the semicircle changes size. The area of the semicircle is increasing at the rate of 1 cm^2/sec when the radius of the semicircle is 3..
Determine the dimensions of the box : If the material for the base costs $0.30 per square foot, the material for the sides costs $0.05 per square foot, and the material for the top costs $0.20 per square foot, determine the dimensions of the box that can be constructed at minimum cost..
Define a hot-air dryer is used to reduce the moisture : A hot-air dryer is used to reduce the moisture content of 1500 kg/min of wet wood pulp from 0.75 kg H20/hg dry pulp to 0.15 wt% H20. Air is drawn from the atmosphere at 28 deg. C, 760 mmHg, and 50% relative humidity, sent through a blower-heater, ..
Has the liquidity of the company improved : What effect would the actions have on a firm's current ratio and explain what it means for a fi rm to have a current ratio equal to .50. Would the fi rm be better off if the current ratio were 1.50? What if it were 15.0?
How to produce a buffer at ph : How many mL of 12.0 M HCl should be added to 500 mL of 0.100 M Na2SO3 (Kb2 = 8.13 x 10-13 and Kb1 =1.5 x 10-7) to produce a buffer at pH of 7.00?
State change in internal energy down the isotherm : What is the change in the internal energy of the system as the system travels down the isotherm from state A to state C? Change in internal energy down the isotherm = 0.000
What was the firms 2011 operating cash flow or ocf : Suppose you also know that the firm's net capital spending for 2011 was $1,340,000, and that the firm reduced its net working capital investment by $63,000.
Explain examining a bacterium under the microscope : A student is examining a bacterium under the microscope. The E. coli bacterial cell has a mass of m = 0.700fg (where a femtogram, fg, is 10?15g) and is swimming at a velocity of v = 2.00?m/s , with an uncertainty in the velocity of 8.00 %
Default risk premium on the corporate debt security : What would be your real rate earned on either of the two investments and what would be the default risk premium on the corporate debt security?

Reviews

Write a Review

Chemistry Questions & Answers

  What is the ph of the benzoic acid solution prior to adding

What is the pH of the benzoic acid solution prior to adding sodium benzoate? Express answer using 3 significant figures. 2. How many grams of sodium benzoate should be added to prepare the buffer?

  State concentration for isotonic solutions of other salts

An isotonic solution is described as 0.92% NaCl (g/mL). Would this also be the required concentration for isotonic solutions of other salts, such as KCl, MgCl2,

  State what is the concentration of ammonium ion in a ph

What is the concentration of ammonium ion in a pH 9 solution that forms when concentrated NaOH is added

  What mass of glucose would be required

What mass of glucose C6H12O6, would be required to prepare 5.000 X 10^3 L of a 0.215 M solution.

  Compute keq for the reaction at temperature

When 0.0200 mol gaseous NH3 and 0.0180 mol gaseous O2 are placed in a 1.00 L container at a certain temperature, the N2 concentration at equilibrium is 2.20Ã-10-3 M. Calculate Keq for the reaction at this temperature.

  What is the molarity of a solution

what is the molarity of a solution containing 7.0 moles of solute in 4300 mL of solution?

  How many liters gaseous water are produced

which is limiting reagent when 42.0g of propane , C3H8, is burned with 115g of oxygen ? how many liters gaseous water are produced at STP

  Depict a quantitative predominance

Draw a quantitative predominance (pH-pC) diagram for the system of 10^-4 M benzoic acid.

  Computation of empirical formulas

Meaning, use and calculation of empirical formulas, In this introduction are given the explanation of how to find out an empirical formula if one has found out the chemical elements of an unknown substance and measured their ratio of masses

  Amount of solid deposited at the bottom of the flask

The surface area of 100 g of glucose > than that of 1 g. give explanation why the solubility does not increase with the amount of solid deposited at the bottom of the flask?

  Compute concentrations of oh and the ph

Calculate concentrations of OH- and the pH of each basic solution. Since NaOH donates on OH- ion for each NaOH molecule, the OH- concentration is equivalent to the NaOH molarity. The pOH is calculated as -log[OH-] and the pH is calculated as 14-pO..

  What type of current is produced

when a substance is being reduced, what type of current is produced?

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