Explain how many moles of hcl must be added

Assignment Help Chemistry
Reference no: EM13300563

A buffer is prepared by adding 150 mL of 1.0 M NaOH to 250 mL of 1.0 M NaH2PO4. How many moles of HCl must be added to this buffer solution to change the pH by 0.18 units

Reference no: EM13300563

Questions Cloud

Determine what is the final river temperature downstream : A toothpaste factory situated on a large river disposes of a waste water containing villiamite (NaF) to the river on a continuous basis. The minimum flow in the river is 210 m3/s, and the discharge rate from the treatment plant is 12.5 m3/s.
What will be the effects of an increase in real output : What will be the effects of an increase in the money supply on the interest rate? What will be the effects of an increase in real output on the interest rate?
Determine how much sand did driver place in the drum : A truck driver used sand to soak up a 1 g spill of lindane (C6H6Cl6). He placed the contaminated soil in an open drum which then filled with 150 L of water during a rainstorm. You test the water and find a concentration of 17 M/L.
Compute more than one annuity value : Compute more than one annuity value then figure out how to combine them. Chose the interval that contains your calculated answer.
Explain how many moles of hcl must be added : A buffer is prepared by adding 150 mL of 1.0 M NaOH to 250 mL of 1.0 M NaH2PO4. How many moles of HCl must be added to this buffer solution to change the pH by 0.18 units
Find fraction of the light intensity is transmitted : Sunlight falls on two polarizers with their polarization axes oriented 57° to one another. What fraction of the light intensity is transmitted
Managerial report : Prepare a report (see below) with your ranking of the judges based on the probabilities and conditional probabilities as well as the analysis of each court. Include the following seven (7) items in table format to support your ranking. Be sure to use..
Calculate the present values of the cash flows : For each of the itineraries, calculate the present values of the cash flows using required rates of return of both 10% and 15% Assume a 15 -year time horizon. Should the company purchase the ship with either or both required rates of return..
Explain what is the ph of nahcoo buffer : A buffer is prepared by adding 1.00 L of 1.0 M HCl to 750 mL of 1.5 M NaHCOO. What is the pH of this buffer? Ka = 1.7 × 10-4

Reviews

Write a Review

Chemistry Questions & Answers

  What is the length of the box

an electron is confined to a one dimensional box of length l it falls from the second energy level to the ground state and releases a photon with a wavelength of 322 nm. what is the length of the box

  Explain what must be the velocity in meters per second

What must be the velocity, in meters per second, of a beam of electrons if they are to display a de Broglie wavelength of 83.7 ?m?

  Compute the wavelength of light necessary to provide

If a minimum energy of 2.00x10^5 J/mol is needed for this process, what is the minimum energy needed from each photon? B. Calculate the wavelength of light necessary to provide photons of this energy

  State balance the redox reaction in acidic solution

Balance the following redox reaction in acidic solution. State what is being ocidized, what is being reduced and how many electrons are transferred during the reaction.

  Determine the molarity of the solution

if potassium bromide of 25.5 grams is dissolved in enough H 2 O to make 1750 mL of solution, determine the molarity of the solution?

  Calculate the number of grams of sodium used

A piece of sodium metal reacts completely with water as follows. 2 Na(s) + 2 H2O(l) 2 NaOH(aq) + H2(g) The hydrogen gas generated is collected over water

  State rmochemical equation for the reaction with an energy

Write a balanced the rmochemical equation for the reaction with an energy term in kJ as part of the equation.

  What is the specific heat capacity of the metal

A piece of metal of mass 20 g at 99?C is placed in a calorimeter containing 55.8 g of water at 23?C. The final temperature of the mixture is 30.4?C.

  Explain what is the substituting group

In the reaction 2-phenylacetic acid + ethanol in a H2SO4 solution yields Ethyl-2-phenylacetate, (a) which group in the acyl compound is being substituted and (b) what is the substituting group?

  What is the molar mass of the unknown acid

A 1.996 gram sample of unknown monoprotic acid is dissolved in some water. This acid solution is then titrated to the end point with 27.38 mL of a solution of 0.4165 M KOH.

  Explain the sign for delta g is negative

how could one be endothermic (positive delta H- NaNO3 dissolves in water) and one be exothermic (negative delta H- NaCH3COO dissolves in water)? Is there more to consider than just the dissolving process?

  Based on the half-reactions and their respective standard

Based on the half-reactions and their respective standard reduction potentials below, which addition to an aqueous solution containing Fe(NO3)2 will result in a reaction under standard-state conditions?

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