Explain solution of the weak base amonia

Assignment Help Chemistry
Reference no: EM13228165

25mL of a .10M solution of the weak acid hydrofluoric acid, HF, is titrsted with .10M solution of the weak base amonia, NH3. Will the pH at the equivilance point be less than 7 equal to 7 or greater than 7? Explain. Ka for HF is 7.2e-4 and Kb for NH3 is 1.8e-5

Reference no: EM13228165

Questions Cloud

Explain a solution contains a mixture of cl-and br-ions : A solution contains a mixture of cl- and br- ions . can both be positively identified? write appropriate equations to support your
What are the values of the rise time and response time : A thermometer, initially at a temperature of 75 degrees Fahrenheit is suddenly immersed into a tank of water with a temperature of 180 degrees Fahrenheit. The time constant of the thermometer is 4 s.
Depict the structure of the alkyne : An alkyne of six carbon atoms gives the same single product in its reaction either with BH3 in THF followed by H2O2 /OH-, or with H2O/Hg2 /H3O . Draw the structure of the alkyne (containing only carbon and hydrogen atoms).
What are the determinants of health in humans : Discuss the ways that health can be conceptualized by a society - what are the determinants of health in humans?
Explain solution of the weak base amonia : 25mL of a .10M solution of the weak acid hydrofluoric acid, HF, is titrsted with .10M solution of the weak base amonia, NH3. Will the pH at the equivilance point be less than 7 equal to 7 or greater than 7? Explain. Ka for HF is 7.2e-4 and Kb for ..
Determine the range of the gain for which system is unstable : The loop transfer function of a single-loop negative feedback system is: L(s) = Gc(s)G(s) = K(s + 2.5)(s + 3.2) / (s2(s + 1)(s + 10)(s + 30)) This system is called conditionally stable because it is stable only for a range of the gain K
Discuss initial approach to designing and defining the site : A critical aspect of web design is the approach that you take to define and develop the parameters of your site. This includes your review and assessment of your own work to validate your site to make sure that it meets the needs of your client.
Determine the after-tax equivalent present worth : A certain engine lathe can be purchased for $330,000 and depreciated over three years to a zero salvage value with the SL method. This machine will produce metal parts that will generate revenues of $220,000 (time zero dollars) per year.
What is the conventional b-c ratio with present worth : A flood control project with a life of 12 years will require an investment of $300,000 and annual maintenance costs of $25,000. The project will provide no benefits for the first two years but will save $40,000 per year in flood damage

Reviews

Write a Review

Chemistry Questions & Answers

  Calculate the heat of solution of nacl

When 5.19g of NaCl is dissolved in 85.0 mL of water at 22.2 degrees Celsius, the temperature of water drops by 6.6 degrees Celsius. Calculate the heat of solution of NaCl.

  Calculate the final pressure of a gas

Calculate the final pressure of a gas if a 953-mL sample of the gas at 1.25 atm and 50.0 degrees Celsius is changed to 1.55 L at 75.0 degrees Celsius.Be sure to include units and correct significant figures

  Explain alpha chloro-2,6-dimethylacetanilide

Thomas used equimolar amounts of diethylamine and alpha chloro-2,6-dimethylacetanilide in the preparation of Lidocaine. All the starting material reacted but failed to isolate any Lidocaine.

  State what is the expected ph of buffer plus added hcl

along with the weight of sodium acetate (4.01g) and the volume of acetic acid used (10mL) to prepare the buffer, the expected pH of it was 5.43. What is the expected pH of buffer plus added HCl?

  State the atmospheric pressure in the room

The atmospheric pressure in the room when the measurement was made was 628 mmHg and the temperature was 36.0 degrees C. What is the density of the gas?

  Reaction of magnesium metal with hcl yields hydrogen gas

The reaction of magnesium metal with HCl yields hydrogen gas and magnesium chloride. What is the volume, in liters, of the gas formed at 736 torr and 18 oC from 4.49 g of Mg in excess HCl?

  What will the concentration of the final solution be

If you take a 67.5 mL portion of 1.98 M. NH3 stock solution and dilute it to a total volume of 0.600 L, what will the concentration of the final solution be?

  How many grams of fe(no3)3 · 9 h2o are required

How many grams of Fe(NO3)3 · 9 H2O are required to prepare 300.0 mL of a 0.249 M solution of Fe(NO3)3 · 9 H2O?

  Explain calcium nitrate are mixed with potassium hydroxide

Calcium nitrate are mixed with 15.0 mL of 0.300 M potassium hydroxide, how many moles of calcium hydroxide will be expected to be made?

  Explain what will be the concentration of hydrogen peroxide

The decomposition of hydrogen peroxid is second order in H2O2. If 50 grams of 30% hydrogen peroxide is placed in a beaker within a sealed environment, what will be the concentration of hydrogen peroxide

  How many grams of co will dissolve

The Henry's Law constant (k) for carbon monoxide in water at 25ºC is 9.71 x 10-4 mol/(L•atm). How many grams of CO will dissolve in 1.00 L of water if the partial pressure of CO is 2.75 atm?

  What is the distance between the layers of atoms

When X rays of wavelength 0.093 nm are diffracted by a metallic crystal, the angle of first-order diffraction (n = 1) is measured to be 15.2 degrees;. What is the distance between the layers of atoms responsible for the diffraction?

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