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!
We will titrate 50.0mL of 0.200M NH3(aq) ( pKb = 4.76) with 0.200M HCl(aq).
a. What is the initial pH of 50.0mL of 0.200M NH3(aq) before HCl is addedb. 25.0mL 0.200M HCl(aq) is added. Calculate moles of eachc. At what point in titration this is called?d. What is its pH at this point?e. How many mL of HCl do you have to add to 50.0mL of 0.200M NH3(aq) to reach equivalent point?f. What is the pH at this pont?g. What is the pH when 70.0mL of HCl is added?
Your stock solutions are 20% glucose, 1M tris and 0.5M EDTA. The diluent is distilled water. Determine how much of each you will add to make the desired buffer.
Using standard enthalpies of formation, calculate the standard enthalpies of the following reaction: 4HCl(g)+O2(g) -------> 2Cl2(g) + 2H2O(g)
Calculate the pH of the solution after the addition of 0.100 mL NaOH. The Ka for HC2H3O2 is 1.8x10^-5.
electrode composed of nickel in a 1.0 M nickel(II) ion solution and another electrode composed of silver in a 1.0 M silver ion solution, connected by a salt bridge. Calculate the standard potential for this cell at 25 °C.
A 2.00L buffer solution is 0.250M in HC2H3O2 and 0.250M in NaC2H3O2. Calculate the pH of the solution after the addition of 0.100 moles of solid NaOH. Assume no volume change upon the addition of base.
What difference in titrant volume would you except between the end- point and the equivalence point if the only indicator available was diphenylamine sulfuric acid
A container holds equal masses of methane gas (molar mass 16.05 g/mol) and oxygen gas (O2, 32.00 grams/mol) The partial pressure of CH4 is how many times the partial pressure of O2?
How many grams of sodium nitrite must be added to a 75.0 mL of 0.050M nitrous acid (Ka=4.5 x 10^-4) to create a solution that has a final pH of 4.20 (assume no volume change)
A reaction has a first order rate constant of 4.31x10-5 s-1 at 25oC and 0.00111 s-1 at 65oC. What is the value of the rate constant at 43oC
concentrated sulfuric acid has a concentration of 18 m. how much concentrated sulfuric acid would be needed to make 255
a 21 l tank contains a gas under a pressure of 367 atm. what volume would the gas occupy at the same temperature at 630
Calculate the Molar mass of a gas if 2.20g occupies 0.885L at 690 torr and 36 degrees C
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