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!
Problem- Pure benzophenone freezes at 48.1degee c. A solution of 1.25g of biphenyl c12h10 molar mass=154.2g/mol) plus 25.38g of benzophenone froze at 16.8degree c. Calculate de Kf of benzophenone.
Knowing that Kf= delta Temp/mass
Please show how you obtained the answer
Consider the oxidation of gold metal in a mixture of nitric and hydrochloric acids (aqua regia) to produce AuCl4^-(aq) while nitrate ion is reduced to NO(g).
Considering that Xenon has eight valence electrons, how can something like XeF4 exist? Explain your answer by illustrating what occurs.
Consider the chemical species IF5 and IF4+
Consider a piece of gold jewelry that weighs 9.78 g and has a volume of 0.680 cm3. The jewelry contains only gold and silver, which have densities of 19.3 g/cm3 and 10.5 g/cm3, respectively.
1.013-g sample of ZnSO4•xH2O is dissolved in an aqueous solution of BaCl2. The pure BaSO4 precipitate is filtered out of solution, dried, and its mass is determined to be 0.8223 g. What is the value of x in ZnSO4•xH2O?
Students in the lab place some sodium chloride in the beaker and remassed it to obtain a mass of 73.25 grams using a digital balance. Find the mass of salt in the beaker.
Determine the heats of formation or the steric energies of the exo-and endo-anhydride adducts using a molecular mechanics program. What do these energies tell you about the mechanism of the reaction
Design an experiment using sequential qualitative analysis to determine whether a solution contains acetate or carbonate ions. For each stage of the test write net ionic equations that could occur.
electronic transition in a hydrogen atom has a wavelength of 486.2 nm. From what initial energy level (ni) did the electron transition?
How many liters of oxygen collected over H2O and measured at 27 degrees Celsius and 745.0 mm Hg can be prepared by decomposing 4.421 grams of gold (III) oxide? The vapor pressure of H2O at 27 degrees Celsius is 26.7 mm Hg.
Cobalt oxide, CoO, is a largely ionic compound. What coordination number and crystal structure would you expect for this oxide
Explain why trans-p-anisalacetophenone would be expected to be more stable than the correspinding cis isomer
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