Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
a) What is the ph of a buffer prepared by mixing 5.0 g of ammonia (NH3) and 20.0 f of ammonium chloride (NH4Cl) in enough water to form 2.50 L of solution. The Kb of ammonia is 1.76*10^-5.
b) How many moles of sodium hypobromite, NaBrO, should be added to 1.00 L of 0.050M hypobromous acid, HBrO, to form a buffer solution of ph 8.80? assume no volume change when NaBrO is added . Ka of HBrO is 2.50*10^-9.
c) How many grams of sodium lactate, NaC3H5O3, should be added to 1.00 L of 0.150M lactic acid, HC3H5O3 to form a buffer solution with a ph of 3.90? Assume no volume change when the sodium lactate is added. ka of lactic acid is 1.40*10^-4.
What type of orgainc compound is responsible for the fruity flavorings found in many natural substances
Based on the Ksp values of CuS, PbS, MnS and HgS, which the the following ion pair will be the easiest to separete by fractional precipitation
What is the hydronium ion concentration of a 0.150 M hypochlorous acid solution with Ka=3.5x10^-8? The equation for the dissociation of hypochlorous acid is
Communicate the results in a lab report. Including: Question, Hypothesis, Materials, Observations, Results, Discussion, Conclusion, References. Be sure to include your calculations for determining the molar concentration of both the strong and weak a..
Calculate the concentration of Cu2+ in a solution prepared by adding 5.2 x 10 -3 mol of CuSO4 to 0.450L of 0.38 M NH3.
State A chunk of dry ice CO2(s), weighing 4.5g is sealed inside a 2 L soda bottle initially containing 1 bar of air. Explain what is the total pressure in the bottle after the dry ice sublimes as well as comes to 298.15 K
Draw out the other two staggered Newman Projections for this molecule - What are the three most acidic ptcrtons in molecule.
the molar heat of vaporization at 298 k for diethyl ether is 26.0 kjmol. how much heat would be requiered to vaporize
The bases below are ranked lowest to highest. Explain the ranking order based on molecular characteristics.HCO2-Li+, HO-Li+, CH3CH2O-Li+.
The combustion of methyl alcohol in an abundant excess of oxygen follows the equation 2CH3OH+3O2 = 2CO2+4H2O. When 7.65g of CH3OH was mixed with 12.5g of O2 and ignited 6.96g of CO2 was obtained.
In the tin oxide laboratory activity, what was the color of the vapor emitted when the nitric acid was added to the tin.
Determine the reaction when aqueous solutions of potassium carbonate as well as zinc sulfate are combined. Explain the net ionic equation for this reaction
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!
whatsapp: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd