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What is the molecular formula of each compound? (Type your answer using the format C6H12O6 for C6H12O6 and use the same order of the elements as in the empirical formulas.)
(a) empirical formula NO2 ( = 92.02 g/mol)
(b) empirical formula C3H6O2 ( = 74.08 g/mol)
(c) empirical formula P2O3 ( = 219.88 g/mol)
(d) empirical formula CH2Cl ( = 98.95 g/mol)
a 1.728g sample of pbcd alloy was dissolved in acid and diluted to exactly 500ml. titration of a 25.00ml aliquot at a
Each of four compounds shown has one signal in the aromatic region and one signal in the alkyl region of its H NMR spectrum. Use the integral values to determine which compound's H NMR spectrum is shown below
3.60 g of liquid methanol ch3oh is placed in an empty 20.0 l container at 45.0degc. if the volume of the container is
A total of sixteen grams of steam at the temperature of 120 degree Celsius is admitted to the system. Determine the phase composition and temperature at the time when equilibrium is reestablished?
at a particular temperature k2.0x10-6 moll for the following reaction 2co2 g at equilibrium with 2cog o2 g if 2.1 mol
when 0.500 l of a 2.00 m solution of Pb(NO3)2 is mixed with an excess of 1.00m solution of Ki, how many grams lead (II) iodide are formed? ( molar mass: Pb(NO3)2= 331 g;KI 166g; PbI2 =467 g; KNO = 101 g
a 54.7-g sample of aluminum at 95.0 oc is dropped into 35.0 g of water at 40.0 oc. what is the final temperature of the
The final temp of the water is 27.1 degrees celcius. Calculate the mass of water in the calorimeter.
Determine the standard reaction enthalpy for the partial combustion of methane to carbon monoxide.
An imagnary element Xz conists of two isotopes having massess of 100.00 amu and 102.0 amu. A sample of Xz was found to contain 75.0% of the 100xz isotope and 25.0% of the 102xz. Calculate the atomic weight of Xz
Will a precipitate of Cu(OH)2 form when 18.00 mL of 0.010 M NaOH is added to 1.000 L of 0.010 M CuCl2
Sulfur Dioxide reacts with oxygen to produce Sulfur trioxide in the presence of a catalyst. In an experiment carried out at 727 degrees Celsius
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