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a total of 200 mol of a compound is allowed to react with water in a foam coffee cup and the reaction produces 189 g of
calculate the mass in grams of hydrogen chloride produced when 505l of molecular hydrogen measured at stp reacts with
what hkl direction connects the adjacent face-centered positions 12 12 0 and 12 0 12 illustrate answer with a
in 1995 the ipcc considered a global average temperature rise of 10-34 degree celcius likely by the year 2100 with 20
when 25 ml of a 90 ml stock solution containing 215 m pbclo32 is diluted to 33 ml what is the concentration of clo3- in
the reaction 2a3bc is first order with respect to a and b when the initial concentrations are a15x10-2 m and b 24x10-3
consider the reaction h2si2gt2hi with equilibruim k 081 if an initial concentration 10 m of each component is placed
the average distance between mars and earth is 13 x 108 miles how long will it take a picture transmitted from the
initially a gas occupies 454l at stp what volume of gas in l will be occupied if the temperature increases to 49oc and
tritium is radioactive decaying by electron emission with a half-life of 125 years what is the value of the decay rate
calculate the difference in slope of the chemical potential against temperature on either side of a the normal freezing
consider a reaction in which two reactants make one product for example consider the unbalanced equation a b c you
ozone is depleted in the stratosphere by chlorine from cf3cl according to the following set of equations cf3cluv
you have a stock concentration of 3m acid and need a working concentration of 250mm in 100ml solution what volume of
what is the ph of the resulting solution when 1725 ml of 1800 m hcl is added to a 19 liter solution that has 074 m
what is the ph of the resulting solution when 2488 ml of 800 m koh is added to a 136 liter solution that has 063 m
draw the skeletal structure of the organic product that results from the reaction of 1-hexanol with thionyl chloride in
2-methyl-2-butanol reacts with hbr to form 2-bromo-2-methyl butane and water while butanol reacts with hbr to form
the following are some typical solvents used for recrystallization and dissolution of various organic compounds give
a ground state h-atom absorbs a photon of wavelength 9438 nm and its electron attains a higher energy level the atom
given 780 of butanoic acid and excess ethanol how many grams of ethyl butyrate would be synthesized assuming a complete
what is the heat of sublimation kcalmol of diatomic iodine at 29815 k the heat of formation of iodine gas is 6225
calculate the enthalpy of reaction delta h for this reaction in kjmol is this reaction exothermic or
consider the diffusion of dopant element a into crystalline water the dopant rich coating is considered as a large
three identical flasks contain three different gases at standard temperature and pressure flask a contains ch4 flask b