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!
How would you make a buffer with a volume of 2.0 L, pH of 5.0 and a strength of 0.25 M using 5.0 M acetic acid stock solution (Ka = 1.8x10-5) and sodium acetate ( NaO2C2H3 available as a solid salt FW = 82 g/mole). a) what are the concentrations of acetic acid and sodium acetate in the buffer? b) what mass of sodium acetate is needed? c) what volume of acetic acid stock solution is needed? d) What is the buffer capacity for added acid? e) What is the buffer capacity for added base? f) Why are the two capacities different?
The free energy change Delta Gt at 500 K is equal to 9.8x10^4 J/mol. Calculate the equilibrium constant at 500 K.
Lysine is an amino acid that is an essential part of nutrition but which is not synthesized by the human body.
Calculate the kg of fuel used for 100 kg mol of outlet ?ue gas and the kg mol of air used. (Hint: First calculate the mol O2 added in the air, using the fact that the N2 in the ?ue gas equals the N2 added in the air. Then make a carbon balance to ..
What is the change in internal energy (in J) of a system that releases 675 J of thermal energy to its surroundings and has 5.60 * 10^2 cal of work done on it?
How many grams of Na3PO4 will be needed to produce 350ml of a solution that has a concentration of Na+ ions of 0.900.
determine the number of stereoisomers for the following. Sketch these isomers and identify pairs of enantiomers ABA,
What is the internal energy of an ensemble of 1 mole of particles having two non-degenerate electronic energy levels separated by 1000cm^-1 at 1310K.
Determine the balanced net ionic equation when aqueous solutions of AgNO3 and NaI are mixed. The balanced net ionic equation is:
A 12-oz (355-mL) Pepsi contains 38.9 mg caffeine (molar mass ?? 194.2 g/mol). Assume that the Pepsi, mainly water, has a density of 1.01 g/mL.
the IUPAC name for the aniline C6H5NH2 with both CH3 and CH2CH2CH3 attached to the nitrogen molecule?
An empty Erlenmeyer flask weighs 215.7 g. When filled with water (d = 1.00 g/cm3), the flask and its contents weigh 515.4 g.
High levels of ozone (O3) make rubber deteriorate, green plants turn brown, and cause people to have difficulty breathing. Calculate delta G at 298 K for the formation of 1 mole of O3 from O2 in urban smog, where [O2]=0.210 atm and [O3]=5.00x10^-7..
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