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!
Problem- You are asked to prepare 500. mL of a 0.150 M acetate buffer at pH 4.90 using only pure acetic acid (MW=60.05 g/mol, pKa=4.76), 3.00 M NaOH, and water. Answer the following questions regarding the preparation of the buffer.
1. How many grams of acetic acid will you need to prepare the 500 mL buffer? Note that the given concentration of acetate refers to the concentration of all acetate species in solution.
2. What volume of 3.00 M NaOH must you add to the acetic acid to achieve a buffer with a pH of 4.90 at a final volume of 500 mL? (Ignore activity coefficients.)
Illustrate structures to prove your interpretation.
the precipitate is dissolved on heating the solution and is generated back on cooling . Identify the metal ion which may contain, also, write a balanced equation corresponding to the formation of precipitate
The solubility of p-dibromobenzene in benzene is 80 microliters/100 microliters at 25 degrees C. p-Dibromobenzene also dissolves in acetone. Based on their structures would you predict the solubility of p-dibromobenzene to be greater or less in ac..
Arrange the molecules in order of decreasing boiling point Molecules are methane, dimethyl ether
A 0.140-mole quantity of M(NO3)2 is added to a liter of 1.030 M NaCN solution. What is the concentration of M2 ions at equilibrium?
A 32.65-g sample of a solid is placed in a flask. Liquid toluene, in which the solid is insoluble, is added to the flask so that the total volume of solid and liquid together is 50.00 ml.
Why did we acquire all spectra without rotationg the sample? 3) Why are Na-23 peaks shifted to lower ppm values when sodium is encapsulated by 18-crown-6 ether
A quantity of gas has a volume of 200.0 liters at 17 degrees Celsius and 3.0 atm of pressure. To what temperature must the gas be cooled for its volume to be reduced to 150.0 liters at a pressure of 2.0 atm?
Use a spreadsheet to calculate the composition of dry air at 5400K and 1 bar. Take the initial composition as .78 mol N2, .21 mol O2 and .01 mol Ar. Neglect the ionization of NO.
A balloon is floating around outside your window. The temperature outside is 21 degrees celsius, and the air pressure is 0.800atm . Your neighbor, who released the balloon, tells you that he filled it with 3.30 moles of gas. What is the volume of ..
Calculate delta H rxn for the reaction MnO2(s) + 2C(graphite) ---> Mn(s) +2CO(g) from the following information: Mn(s) +O2(g) ---> MnO2 delta H = -520.03 kJ 2C(graphic) + O2(g) ---> 3CO (g) delta H = -221.04 kJ
What quantity of energy, in joules, is required to raise the temperature of 454g of tin from room temperature, 25.0 degree C, to its melting point, 231.9 degrees C
What is the energy in joules released by the fission of a single uranium-235 atom?
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