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explain the rate constant of a first-order reaction is 66s -1 explain what is the rate constant in units of
explain how do the bond angles of ph3 and h2s compare if different make clear why how do the electronic and molecular
the aromatic region 7-8 ppm of the proton nmr spectrum of compounds with para disubstituted benzene rings such as
bleach is utilized to remove colored stains from clothing explain what type of reaction would you suspect that bleach
in the lab you mix two solutions each formerly at the same temperature and the temperature of the resulting solution
compute the work associated with the expansion of a gas from 152 l to 189 l at a constant pressure of 14atm520 latm-
explain what is the wavelength of light in centimeters having a frequency of 15x1018 s-1 the speed of light is 300 x
compute the de broglie wavelength of an electron accelerated from rest through a potential difference of a 100 v b 10
012g of mg was mixed with 20ml of hcl were mixed in a simple calorimeter two trials were conducted in trial one the
the boiling point of hcl is -84c and that of hbr is -70c why is this reasonable on one account however opposite from
explain what is the specific heat capacity of gold if it requires 488 j to raise the temperature of 15 grams of gold 25
a bomb calorimeter has a heat capacity of 247 kjk while a 0105 g sample of ethylene c2h4 was burned in this calorimeter
a 40 g sample of colorado oil shale is burned in a bomb calorimeter which causes the temperature of the calorimeter to
if a student performs an end other mic reaction in a calorimeter explain how does the calculated value of delta h
present your strategy and detailed mechanism how you prepare2-chloro-3-nitrotolune starting with benzene demonstrate
present strategy for synthesizing o-bromonitrobenzene and p-niitrobenzene indicate appropriate reagents usedas well
explain what is the qty of heat evolved when 200 g h2o liq is formed from the combustion of h2 g and o2 ggiven h2 g 12
explain what is the molar heat of combustion of benzene c6h6 if combustion of 300 g of benzene causes a temperature
explain what mass of sodium thiosulfate pentahydrate crystals na2s2o35h2ois needed to prepare 500 ml of 1 m na2s2o3
compute the freezing point of a 02 m cacl2 aqueous solution assuming it dissociates completely to form ions in
while 50 g of an unknown substance is dissolved in 1000 g of water the freezing point of the solution reduces by 15
c-14 and tl-204 are beta emitters one of these substances though produces radiation that is much more penetrating
explain why alcohol dissolving in water gives a solution that boils at a lower temperature than
a benzene - toulene solution with xben 300 has a normal boiling point of 98c the vapor pressure of pure tolene at 986c
plot the 2p-orbital for h and find out the r-value when the probability of finding the electron is at a