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.
Question- A 10.0 mL sample of 0.200 M hydrocyanic acid (HCN) is titrated with 0.0998 M NaOH. What is the pH at the equiva- lence point. For hydrocyanic acid, pKa = 9.31.
the first-order isomerization reaction cyclopropane ? propene has a rate constant of 1.10 times 10-4s-1 at 470degc and
Assume you dissolve 0.235 g of the weak acid benzoic acid, C6H5CO2H, in enough water to make 3.00 multiplied by 102 mL of solution and then titrate the solution
pouring liquid nitrogen onto a balloon decreases the volume of the balloon dramatically. once the liquid nitrogen is
The solubility of BaSO_4 is 2.4*10^-3 g/L at room temperature. What is the value of K_sp for BaSO_4 at this temperature?
Calculate the pH at the equivalence point for the titration of 0.210M methylamine(CH3NH2) with 0.210M HCl. The Kb of methylamine is 5.0*10^-4
What is the effect of a pressure change from 760 torr to 202 kPa, and the temperature changes from 37 degrees Celsius to 155K on the volume of 1 mol of an ideal gas
If an Al strip is placed in CuSo4 solution. Would you expect a spontaneous reaction to take place based on the net potential
How many moles of aluminum atoms, Al, are needed to combine with 0.133 mol of O atoms to make aluminum oxide, Al2O3?
Problem- Acetic acid has a Ka of 1.8x10^-5. Find [H3O+], [OH-], pH, and pOH for a 0.780 M acetic acid solution. The Uses of sodium phosphate include clarifying crude sugar, manufacturing paper, removing boiler scale, and washing concrete.
A buffer solution contains 0.71 mol of boric acid (H3BO3) and 0.53 mol of sodium dihydrogen borate (NaH2BO3) in 4.00 L. The Ka of boric acid (H3BO3) is Ka = 5.8e-10. What is the pH of the buffer after the addition of 0.50 mol of NaOH
A solution is prepared from 25.0g of benzene, c6h6 and 25.0g of an unknown compound. The freezing point of this solution is 4.3C. The normal freezing point of benzene is -5.12C/m. Determine the molar mass of the compound.
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