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!
Calculate the pH after 0.010 mol gaseous HCl is added to 287.8 mL of each of the following buffered solutions.
(a) 0.050 M NH3 / 0.15 M NH4Cl
(b) 0.50 M NH3 / 1.50 M NH4Cl
A radioactive sample contains 2.50g of an isotope with a half-life of 3.8 days. How much of the isotope in grams will remain after 14.2 days
A 10.00 ml solution of zn^2+ of unknown concentration was mixed with 25.00 mL test reagent (a known excess) and diluted to a final total volume of 200 ml to produce a colored solution having an Absorbance of 0.104 at a certain wavelength.
The total molarity of acid and conjugate base in this buffer is 0.100 M . A student adds 9.00 mL of a 0.290 M Hcl solution to the beaker. How much will the pH change. The pKa of acetic acid is 4.760.
In a hydrogen atom, from what energy level must an electron fall to the n = 3 level to give a line at 1.28 micrometers in the infrared region? a. 7 b. 5 c. 6 d. 4 e
A current of 1.26A is passed through an electrolytic cell, forcing the following reaction. What is the total volume at STP after 7.44h
A 4.5 g nugget of gold absorbed 276 j of heat. What was the final temperature of the gold if the initial temperature was 25 OC ? The specific heat of gold is 0.129 j/g OC.
translate the following word equations into balanced chemical equations and explain how the equations represent what
Write a brief procedure that would have been used to carry out the titration. Just include the key steps (terms and measurements). c. What was the average volume of Ca(OH)2 used? d. Calculate the concentration of the HCI sample.
The equilibrium constant at 427°C for the reaction N2(g) + 3H2(g) 2NH3(g) is Kp = 9.4 × 10-5. Calculate the value of ΔG° for the reaction under these conditions.
Calculate the molality of the solution and the 95% CL, and write the final result with correct format.
a stream of gas containing 3 mol hydrogen sulphide enters an absorption column. the composition of hydrogen sulphide
the rate of bimolecular reaction is affected by concentrations of reactants presence of a catalyst and temperature, Concentration of a pure solid and a liquid can be ommitted from the equilibrium equation as the concentration ratio of these equal to..
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