Start Discovering Solved Questions and Your Course Assignments
TextBooks Included
Active Tutors
Asked Questions
Answered Questions
prepare a qualitative born-haber cycle to explain why only the most electropositive elements form saline
predict the products when 1-propanol is heated in the presence of an acid there are two products i have one of them
the enthalpy of combustion for propane is -2044 kjmol how many liters of propane at stp must be burned in order to
predict the products when cyclohexanol is heated in the presence of h there are two products i have one of them it is
nitrogen gas n2 reacts with hydrogen gas h2 to form ammonia nh3 at 200degc in a closed container 104 atm of nitrogen
an airplane is pressurized to 650 which is the atmospheric pressure at a ski resort at 130times104 altitude if the
545 grams of ice initially at -5degc is added to 475 grams of liquid water initially at 495degc in a thermally
calculate the amount of heat transfer when 355 g of mg s react in a constant pressure delta h
when 1535 g of methanol ch3oh was burned in a constant-volume bomb calorimeter the water temperature rose from 2027 oc
lambdasymbol for one line of the hydrogen spectrum is 4118 x 10-4 cm use this value in the rydberg equation to
write a structural formula for the principal organic product formed in the reaction of methyl bromide with
size exclusion chromatography sec is a different technique explain how this technique is different from hplc liquid
calculate the enthalpy change per mole of boron consumed in the reaction4bs 3o2g----gt2b2o3sif more than one value is
match each molecule with the formal charge of the element in bold and underlined if several resonance structures are
why is gc a poor choice for analyzing large molecular weight materials specifically identify these limitations for all
what advantages does a temperature gradient have in gc analysis what disadvantages might be observed using this
what factors can effect retention time what factors might i change and how to increase the retention time of a polar
what purpose does a gc oven serve is there some benefit to increasing this temperature is there some temperature above
calculate from your titration results the moles of acidic protons in the tablet neutralized by the naoh00500m of
a certain reaction requires 80 minutes to reach completion in refluxing diethyl ether bp 35 deg c estimate the reflux
iron 3 oxide and aluminum powder form an extremely violent reaction called thermite when burned together this is an
assuming the volumes are additive what is the cl- in a solution obtained by mixing 225 ml of 625 m kcl and 615 ml of
gold like iron and copper can have more than one monatomic cation knowing this a mining company wanted to find the
a 150 ml solution was obtained from a pond and analyzed for calcium content to do this an excess of potassium sulfate