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a certain substance has a heat of vaporization of 2975 kjmol at what kelvin temperature will the vapor pressure be 500
when gaseous f2 and solid i2 are heated high temperatuer the i2 sublimes and gaseous iodine heptofloride forms350 torr
the curie ci is a commonly used unit for measuring nuclear radioactivity 1 curie of radiation is equal to 37 1010 decay
given that the partial pressure of o2 in the atmosphere is 020 atm and the concentration of h3o is 20 x 10-6 m
calculate the frequency of the photon emitted by a hydrogen atom when its electron droops from the n3 state to the
identify the missing particle in the following equation 23892 u --gt 42 he a 24294 pu b 23490 th c 24290 th d 23492 u
modify the 3 molecules so that they show the form that is dominant at physiological ph formic acid acetylsalicylic acid
the rate constant for decay of 45ca20 is 4233x10-3day what is the half-life of 45ca20 a 8186 days b 1637 days c 3274
complete molecular equations net ionic equations of baoh2nicl2 naclagn03 nh42co3cacl2
what will happen if a small amount of sodium hydroxide is added to a 01 m solution of ammonia a kb for ammonia will
kc is 167x1020 at 25c for the formation of ironiii oxalate complex ion fe3aq3c2o42-aq gtgtgtfec2o433-aq if 00200 m fe3
during world war ii tritium 3h was a component of fluorescent watch dials and hands assume you have such a watch that
phosphorus-32 is a commonly used radioactive nuclide in biochemical research particularly in studies of nucleic acids
the first atomic explosion was detonated in the desert north of alamogordo new mexico on july 16 1945 what fraction of
americium-241 is widely used in smoke detectors the radiation released by this element ionizes particles that are then
calculate the binding energy per nucleon for 21h and 31h the atomic masses are 21h 201410 amu and 31h 301605
which of the following processes are spontaneous you may select more than one answer a melting of ice at -10degc and 1
what is the final volume of a 5000 ml gas container that increased in temperature from 299 k to 333 k while the
ammonia gas decomposes according to the equation if 150 l of nitrogen is formed at stp how many liters of hydrogen will
a sample of hydrogen gas is mixed with oxygen gas the mixture has a total pressure of 820 torr and the oxygen gas has a
which of the following statements is true for the covalent molecule hcl answer chlorine is more electronegative and the
calculate the cell potential for the following reaction as written at 75 degc given that zn2 0870 m and ni2 00130 m
when heated to 350c at 0950 atm ammonium nitrate decomposes to produce nitrogen water and oxygen gases 2nh4no3s --gt
if the volume of a gas container at 320degc changes from 155 l to 755 ml what will the final temperature