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!
For the next three problems, consider 1.0 L of a solution which is 0.3 M HC2H3O2 and 0.2 M NaC2H3O2 (Ka for HC2H3O2 = 1.8 x 10-5). Assume 2 significant figures in all of the given concentrations so that you should calculate all of the following pH values to two decimal places.
1. Calculate the pH of this solution.
2. Calculate the pH after 0.10 mol of HCl has been added to the original solution. Assume no volume change on addition of HCl.
3. Calculate the pH after 0.20 mol of NaOH has been added to the original buffer solution. Assume no volume change on addition of NaOH.
What is the initial pH of this buffer? 2. What is the pH of the buffer in question
Determine the molecular formula of a compound which has a empirical formula of CH3 and a molar mass of 60.0 g/mol.
The standard free energy of activation of a reaction A is 76.9 kJ mol-1 (18.4 kcal mol-1) at 298 K. Reaction B is one hundred million times faster than reaction A at the same temperature
How many moles of Allyl Sulfide (C3H5)2S in 23.2g? How many H atoms are in 0.85 mole of allyl sulfide?How many atoms of Carbon are in 4.20 X 10^23 molecules of allyl sulfide.
Application of Boyle's Law - Determine the molecular formula of the compound
strontium metal crystalizes in a cubic unit cell which has a edge length of 612 pm. If the mass of an atom of Sr is 87.62 amu, and the density of Sr is 2.54 g/cm3.
Although the aluminum cylinder is a solid (and, therefore, is quite in-compressible), it actually contains quite a bit of empty space.
For caffeine, the partition coefficient between methylene chloride and water is approximately 8. If you add the following to a separatory funnel - 10 g caffeine,
if 5.00g helium gas is added to a 1.00-L ballon cantaining 1.00g of helium gas, what is the new volume of the ballon?
Does a chemical change occur when you cook an egg? Why or why not? When you fry an egg, it becomes a solid, the heat makes it smoke, and the color changes from clear and yellow to all yellow.
KEtones also undergo the aldo condensation, although a succesful reaction often requires "enhanced" conditions, since the addition involves an unfavorable equilibrium constant.
Determine the number of grams of sodium acetate and the amounts in mLs of 6.00M acetic acid that you would need to make 50.00mL of a sodium acetate/acetic acid buffer solution at the pH equal to 5.00 in order to make a final concentration of 0.05M..
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