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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.
A large scale polycondensation reaction of a diol and a diacid is performed at 200 C. At various intervals small samples are removed, introduced into tared conical flasks, quenched in a dri ice/acetone, weighed, dissolved and titrated with a stand..
The amount of isotope reduces in a first-order process. If 19.0% of the original amount of 14C is present in a wooden tool at the time of analysis, explain what is the age of the tool. The half-life of 14C is 5730 yr.
Consider the titration of 30.0 mL of 0.035 M NH3 with 0.025 M HCl. Calculate the pH after the following volumes of titrant have been added.
Use the appropriate values of Ksp and Kf to find the equilibrium constant for the following reaction: FeS(s)+6CN^-(aq)->
What experimental error would cause a mistaken increase of copper into the cycle? What is done in the Experimental Procedure to avoid this "positive" error? Explain a. Explain what factors may contribute to a greater than 100% recover of copper in t..
factor that affects the speed of heterogeneous reactions
Caculations of Glucose. How much glucose is needed to prepare 100.g of a 33% glucose solution 3.5g at glucose 96.3g of H2o
A mixure of gases collected over water at 14 degrees celciushas a total pressure of 0.981 atm and occupies 55mL. How many grams of water escaped into the vapor state
Calculate the mass of NaHCO3 that was used up in the reaction for each beaker. The molecular weight of NaHCO3 is 84.007 g/mole.
Depict all the stereoisomers of the subsequent and include the relationship between each stereoisomer (That is enantiomer, meso-compound, diasteromer)
A buffer contains 0.19 mol of propionic acid (C2H5COOH) and 0.22 mol of sodium propionate (C2H5COONA) in 1.20L. What is the pH of the buffer after the addition of 0.02 mol of HI
What idea does the repetition of the sentence convey?
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