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The following dry exhaust volumetric analysis results from the combustion of an unknown amount of octane (x moles of C8H18) in a spark ignition internal combustion engine: 8.80% CO2, 8.20% CO, 4.1% H2, 1.00% NO, 0.200% CH4, and 77.7% N2. Determine
a. The actual molar and mass air/fuel ratios.
b. The percent of theoretical air used.
c. The molar percentage of water vapor in the exhaust gas before it was dried for this analysis.
RNAse is an enzyme that cleaves the P-O5\' bond in RNA. It has two His residues in the active site. Suggest a plausible explanation
a 25.0 ml sample of river water was titrated with 0.0010 m na2cr2o7 and required 8.3 ml to reach the end-point. what is
What mass of limestone (in kg) would be required to completely neutralize a 15.3 billion-liter lake that is 1.9×10^-5 M in H2SO4 and 8.9×10^-6 M in HNO3
The ultimate source of all chemical products is the earth (including its water and atmosphere). Sulfuric acid is a good example. It is made from burning sulfur in air to make sulfur trioxide then reacting the sulfur trioxide with water.
What statement below best describes the graph representing the integrated 1st order rate law. plot of ln[a] vs t having a straight line negative slope equal to -k
Write a seven to eight pages research about geothermal energy, the priffesor didn't told me what he wants exactly, but I talked to him I understand that he is looking for like how I could build big geothermal station.
Synthetic chemists often take IR and NMR spectra of crude reaction products, before further purification, looking for evidence that the reaction had afforded the expected product.
a 75.0 kg patient is running a fever of 105degf and is given an alcohol rub to lower the body temperature. if the
when liquid water is introduced into an evacuated vessel at 25deg c some of the water vaporizes. predict how the
question an aqueous solution of sodium hydroxide is labeled .010 m naoh. what are the molar concentrations of naoh na
What mass of heptane, C7H16, is required to produce 90.2 kJ of heat at constant pressure from its combustion in excess oxygen?C7H16(l) + 11O2(g) → 7CO2(g) + 8H2O(l)
calculate the distance (m) that a molecule of He would diffuse under the same conditions for the same period of time.
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