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The Orsat analysis of the (dry) products of combustion of an unknown hydrocarbon is 9.10% CO2, 8.90% CO, and 82.0% N2 (no O2 is present). Determine
a. The fuel model (CnHm).
b. The mass percentages of C and H present in the fuel.
c. The molar air/fuel ratio and percent theoretical air used in the combustion.
d. The dew point temperature at 0.106 MPa.
Determine the symmetry-adapted linear combinations for the molecular orbitals of NH3 using atomic orbitals from the nitrogen and hydrogen atoms.
A 0.852 g sample of a liquid is vaporized. The vapor is found to occupy 153 mL at 110oC and 760 torr pressure. Calculate the molar mass of this chemical.
question the standard reaction gibbs energy of the decomposition of caco3 to cao and co2 at 1173 k is 0.178 kj mol-1.
Question- What is the solubility in mol/L of SO2 at a partial pressure of 615.1 torr, if the solubility at a partial pressure of 448.0 torr is 0.8701mol/L
When 0.0600 mol of HCl(aq) is reacted with 0.0600 mol of NaOH(aq) in 50.0 mL of water, the temperature of the solution increases by 15.1°C. What is the enthalpy of reaction for the following thermochemical equation?
A dancehall contains 173 men and 238 women. A certain "promenade" calls for the formation of groups, with each group consisting of one man with two women.
Calculate the wavelength in nm: a) a muon (a subatomic particle with a mass of 1.884 x 10^-25 g) traveling at 345 m/s b) an electron (me = 9.10939 x 10^-28 g) moving at 3.80 x 10^6 m/s in an electron microscope
Lakes that have been acidified by acid rain (HNO3 and H2SO4) can be neutralized by a process called liming, in which limestone (CaCO3) is added to the acidified water. What mass of limestone (in Kg) would completely neutralize a 15.5 billion-liter..
Problem- Calculate the pH at the equivalence point for the titration of 0.170 M methylamine (CH3NH2) with 0.170 M HCl. The k_b of methylamine is 5.0*10^-4.
The vapor pressure of dichloromethane, rm CH_2Cl_2, at 0 rm ^{circ}C is 134 rm mmHg. The normal boiling point of dichloromethane is 40. rm ^C. Calculate its molar heat of vaporization.
Suggest why dichromate or permanganate reverses the benzoin condensation when benzoin is treated with the reagents
Precipitation reactions. "WE put 50 mg of PbCl2 in 100 ml of water at 25 degrees Celcius. What is the chloride ion concentration of the solution. (Ksp of PbCl2 =1.7 x 10^(-5)
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