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A) Write balanced equations for the combustion of methane, CH4(g) and octane C8H18 in air. The products are carbon dioxide and liquid water.
B) Calculate the standard enthalpy for each equation(called the heat of combustion).
C) Which substance, methane or octane produces more heat per gram of fuel? Explain?
What is the molality of glycerol in a solution of 2.05 g of glycerol (C3H8O3) and 80.3 g of ethanol (C2H6O)
A solution is made that is 1.5*10^-3 M in Zn(NO3)2 and 0.130 M in NH3. After the solution reaches equilibrium, what concentration of Zn^2+(aq) remains
How many milliliters of 0.280M Na2S2O3 solution are needed to titrate 2.396 g of I2 according to the equation below?I2+2SO3 2- ----> S4O6 2- + 2I-
Design a laboratory set-up that would enable you to separate a mixture of three hydrocarbons with different boiling points. Draw and label a diagram of your set-up
For the hypothethical reaction A-products, the concentration of A was monitored with time. from the followimg graph
Carbon sequestration technologies are being actively explored by researchers as methods to remove CO2 from the atmosphere, thereby diminishing the greenhouse effect.
what is the constant k for this reaction. what is the rate of the reaction if the initial concentrations of [A] = .400M, [B]= .0500M and [C]= .075M
What are the differences in the procedure that account for Sn(II) being formed in one and Sn(IV) in the other? Try to rationalize why these differences in procedure result in different products being formed
Suggest a chemical test that would allow you to distinguish between tert-butyl alcohol and 1 butanol, both of which give a positive ceric nitrate test?
How much energy (in kilojoules) is needed to heat 3.60 of ice from -14.5 to 26.0? The heat of fusion of water is 6.01, and the molar heat capacity is 36.6 for ice and 75.3 for liquid water.
what volume of oxygen gas will be collected if a 5gram sample of potassium permanganate decomposers at 25 degrees celcius and 1 atmospheric pressure?
Suppose that the atomic mass unit (amu) had been defined as one-twelfth of the average mass of an atom of nitrogen instead of one-twelfth of the mass of an atom of carbon-12. What would the average atomic mass of potassium be on this new scale
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