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Let's see if it makes sense for a major US city to utilizeits municipal solid waste (MSW) as a sustainable biomass feedstock.Using Chicago as a model Mid western US city where the average citizen pr
Is it bromocyclohexane? One of the requirements for reactivity inSn1 reactions is a stable carbocation. Does cyclohexane holda positive charge better than cyclopentane?
Were interested in determing the amound of citric acid in a sample of 7-up. Will our results be different if we use a sample that has been open for an hour instead of a freshly opened bottle? Why?
Since molarity is a concentration unit used mainly by chemists, the concentrations of commercial solutions are normally measured by the percentage of solute in the solution.
Why is it that the outermost electrons are strongly attracted to the nucleus when nuclear charge increases but on theother hand, why is it least attracted to the nucleus?
Calculate the density of CO2 gas at STP (in g/l)3) A cylinder in a gasole engine initially has a volume of0.50L and contains gases that exert a pressure of 101.3 kPa.
How do you convert ethylbenzene to 1,6-dibenzyl-2-oxy-hexane, and all carbon reagentsmust be made from the starting material?
One mole of gas occupies a volume of 22.4l at STP. Calculate the temperature and pressure conditions needed to fit two moles of a gas into a volume of 22.4L.
The normal respiratory rate for a human being is 15.0 breathes per minute. The average volume of air for each breath is 505 cm3 at 20C and 9:95 X104Pa. What is the volume of air at STP that an indiv
A mass of 48.5 grams of a certain substance can be dissolved in29.1 cm^3 of water at 20 degrees C. Calculate the solubility of this substance per gram of water at the same temperature.
Show intermediate resonance structures leading to both methyl meta-and para- nitrobenzoates. Based on these resonance structures,which product should be favored and why?
What are the state of all ingredients in kool-aid and the changes of state that take place. Which ingredients are solutes and which are solvents? What is an intensive and exten
Pure Benzene (C6H6) has a melting point of 5.5 degrees C. Delta Hof fusion for benzene is 9.87 kj/mol; specific heat for liquid benzene is 1.63 J/g X degrees).
The periodic table is arrangement that has meaning of atomic structure and chemical behaviors. Elements are grouped based on similarities in an entire network of vertical, horizontal and diagonal re
Vinegar is sold as a 5% (v/v) solution of acetic acid in water. How much pure water should be added to 15 mL of acetic acid (a liquid at room temperature) to make 5% (v/v) solution of acetic a
Charcoal found under a stone at Stonehenge, England, has carbon-14 activity that is 0.60 that of new wood. How old is the charcoal? (The half life of carbon-14 is 5730 years).
A 1.00 g sample of NH4NO3 is decomposed in a bomb calorimeter. The temperature increases by 6.12 degreesCelsius. What is the molar heat of decomposition for ammoniumnitrate?
Cobalt-60 is a beta emmiter with a half-life of 5.3 years. Approximately what fraction of cobalt-60 atoms will remian in a particular sample after 26.5 years?
A thief plans to steal a bar of gold from a woman's purse and replace it with a bag of sand. Assume that the volumes of gold and sand are 350 mL each and the density of sand is3.00g/cm3.
A hybird electric vechile (HEV) is a car with both a gasoline powered engine and an electric motor. Some HEV's achieve mileage ratings as high as 75 miles per gallons of gas.
Suppose 1.07 g ofFeCl3 is placed in a 50.0 mL volumetric flask, water is added, the mixture is shaken to dissolve the solid, and then water is added to the calibration mark of the flask.
Consinder an experiment in which water was electrolysed. the resulting H2 and O2 are collected separately at 25oC and 1atm pressure, and the volume of O2 collected is 158.9 ml. what vol
Methanol is considered a temporary antifreeze because of its low boiling point. Calculate the amount of heat necessary to convert 1250 g of liquid at 25.0 ºC to a vapor at its boiling point.
Carbon tetrachloride, has a vapor pressure of 213 torr at 40celsius and 836 torr at 80 celsius. what is the normalboiling point of CCl4?
Given that the specific rotation of pure alpha-D-lactose is + 92.6° and that the specific rotation of pure beta-D-lactose is +34°, calculate the equilibrium percentages of the alpha and beta