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Determine the empirical formula using the following mass data. asample contains 15.136g of carbon, 1.762g of hydrogen, and 3.102 gof oxygen. please indicate which is the number of carbon atoms in the empirical formula.
Naturally occurring chlorine is composed of 35Cl and 37Cl. The atomic weight of chlorine is 35.453. What are the percentages of 35Cl and 37Cl in naturally occurring chlorine. Assume that the mass of 35Cl and 37Cl are 35 and 37 amu respectively.
Calculate an approximate heat of reaction for the combustion of one mole of methane gas (CH4) to form gaseous H2O and CO2. What Volume (in L) of methane is needed to produce 2471 kJ of heat for methane gas at 35 Degrees C and 7.17 atm pressure
A 25-g sample of an alloy at 98 C is placed in 50. g water at 17 C: If the final temperature reached by the alloy sample and water is 27 C, what is the specific heat (cal/gC) of the alloy?
A compound with the molecular weight of 391.98 was determined to be 3.1 % Hydrogen, 31.5 % Phosphorous, and 65.4% Oxygen. Determine the empirical formula and molecular formula for the compound.
Draw the general reaction scheme for an amino acid reacting with ninhydrin and then draw the structures for each component in the solvent system of the following:
The order of skunks is caused by chemical compounds called thiols. These compounds, of which butanethiol(C4H10S) is a representative example, can be deodorized by reaction with household bleech (NaOCl) according to the following equition:
What is the Ka of HCOOH? What is the base on the left side of the equilibrium? What is the conjugate base on the right side of the equilibrium?
When heated, ammonium carbonate decomposes as follows. NH4CO2NH2(s) ->2 NH3(g) + CO2(g) At a certain temperature the equilibrium pressure of the system is 0.318 atm. Calculate KP for the reaction.
What molarity of aqueous aluminum sulfate solution can be expected to show the same conductivity as 0.030 M Na2SO4 at 36,000 units?
a mass of .1 kg of helium fills a .2m3 rigid vessel at 350 kpa. the vessel is heated until the pressure is 700 kpa.
The three isomers 0-,m-, and p-xylenes are are very difficult to distinguish via proton NMR. However they are instantaneously distinguishable via carbon NMR how
what is the vapor pressure(in mm Hg)of a solution made by dissolving 18.3g of NaCl in 500.0g of H2O at 70 degree celcius. The vapor pressure of pure water at 70 degree celcius is 233.7 mm Hg.
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