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Explain when pentane, C.5H.12, burns in oxygen, it produces carbon dioxide as well as water. If 85.5g of pentane is completely burned, what volume of carbon dioxide is produced? Assume the CO.2 cools to room temperature where its density is 1.997g/L
the tetraethyl lead pbc2h54in a 25.00 ml sample of aviation gasoline was shaken with 15.00 ml of 0.02381 m i2. hint one
Is a first order rate constant of 3.14x10^-4 1/s at room temperature, if you currently have a 2.5 M N2O5 how long will it take for 65% of N2O react?
calculate the number of oxygen molecules released when 1g of silver oxide is broken down.
Suggest an experimental method to ensure that the reaction of 2-bromobutane produces entirely a) 1-butene b) 2-butene
a 10.0 long cylindrical glass tube sealed at one end is filled with ethanol. the mass of ethanol needed to fill the
The MnO4(-) is often used to analyze for the Fe(2+) content of an aqueous solution via the reaction MnO4(-)+Fe(2+)---> Fe(3+)+Mn(2+) in acidic solution. What is the ration Fe(2+):MnO4(-) in the balanced equation
In the spectrum of atomic hydrogen, a violet line is observed at 434nm. Determine the beginning and ending energy levels of the electron during the emission of energy that leads to the spectral line.
A hot air balloon has a volume of 960 l at 18 degrees c. What temp must it be heated to raise its volume to 1200L, assuming the pressure remains constant
a scientist discovers a new thermometer which reads temperature in a new unit called the degree gatorg0. careful
The most common source of copper is the mineral chalcopyrite (CuFeS2) how many kilograms of chalcopyrite must be mined to obtain a 440 grams of pure copper.
what is the density of a block of marble that occupies 306 cm3 and has a mass of 804 g? answer in units of g/cm3.
0.90 g of hydrogen chloride (HCl) is dissolved in water to make 2.5 L of solution. What is the pH of the resulting hydrochloric acid solution?
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