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!
Explain what is the percent purity of a sample of impure H2C2O4•2H2O (oxalic acid dehydrate, 126.07 g/mol) if 0.6299 grams of this material require a titration with 28.35mL of a potassium permanganate solution? The titrant contains 5.980 mg of potassium permanganate (158.04 g/mol) per 1.000mL of solution. State the balanced chemical equation in net ionic form.
Explain what are the equilibrium concentrations of Pb2+ and F- in a saturated solution of lead fluoride if the Ksp value of PbF2 is 3.2x10^-8
Determine the mass of H 2 O in the flask and it's the true volume at 20° C?(at 20°C the Density g/mL=0.9982071,20°C the volume of 1g of water (mL) corrected for buoyancy is 1.0029 )
Malonic acid =HOOC-CH2-COOH abbreviated H2A 50 100 150 200 vol. of NaOH added (mL) Point B Given that Kal = 1.5 X 10-3and KaZ= 2.0 X 10-6for malonic acid, answer the following questions: A. Write out the reactions and the equilibrium expressions a..
When a He atom absorbs a photon to form the excited configuration 1s^1 2s^1 (here called He*) a weak bond forms with another He to form the diatomic molecule HeHe*. Construct a molecular orbital description of the bonding in this species.
the solubility of phthalic acid is water is 0.54g100 ml at14degc 18g100 ml at 100degc. how many ml of boiling water are
what would be the payload if helium were used instead of hydrogen?, d.) would you and a companion on board, the balloon ascends to 30,000 feet where pressure is 0.28 atm. Assume no volume change, what is the temp (in celsius) at 30,000 feet?
a benzoic acid solution was prepared by adding 0.488 g benzoicacid to a 100 ml volumetric flask and then adding enough
what conclusions can be reached about the relative strengths of Ni2+(aq) and/vs Cu2+(aq) as oxidizers? Also write the correct reaction.
We use standard addition methods when our sample has matrix effects which are hard to duplicate in a blank. Let's again find the amount of Pb+2 in a blood sample. A 5.00 mL blood sample containing lead yielded a signal of 0.712 units.
Calculate the molar concentration of commercial hydrochloric acid, if the solution contains 37% for mass in HCl, and if the solution has a density of 1.18 g/mL.
the experiment utilized only metal-metal ion redoxcouples. is it possible to determine the srp for non-metalsand their
A solution of acid was found to have a hydrogen ion concentration of 0.03 mol dm-3 what is the pH of the solution?
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