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10g of CH4 is combusted in a calorimeter that has an empty heat capacity of 18 J/C. The calorimeter contained 150 g of water. If the temperature changed from 25.2C to 30.3C. Calculate the molar heat of combustion of methane in J/mol
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Using data from unfiltered white light and the white light through the yellow filter, determine which two colors of light mix to form yellow. Support your conclusion with a quantitative discussion of relative peak intens ...
When benzene (C6H6 ) reacts with bromine (Br2 ), bromobenzene (C6H5Br ) is obtained: C6H6+Br2→C6H5Br+HBr What is the theoretical yield of bromobenzene in this reaction when 28.0 g of benzene reacts with 60.7 g of bromine ...
A 35g copper cup contains 89g of drinking water. The copper cup is placed into a cooling device consisting of an insulated container which holds 85g of water equal in temperature to the drinking water. Ammonium chloride ...
What is the subshell electron configuration for the Ca20 atom? Which are valence electrons and how many valence electrons are there?
Do you notice any trends or can you make any generalizations about where certain types of liquids fall on the pH scale?
Vinegar is an aqueous solution of acetic acid CH3OOH. A10 mL sample of a particular vinegar requires 31.45 mL of 0.2560 Mof KOH for its titration. What is the molarity of acetic acid in vinegar?
It takes 37.8 mL of 0.2114 M NaOH to neutralize 19.3 mL of an oxalic acid solution with an unknown concentration. Calculate the actual concentration of this oxalic acid solution. Don't forget to look at the balanced equa ...
Assume that you dissolve 10.2 g of a mixture of NaOH and Ba(OH)2 in 227.0 mL of water and titrate with 1.47M hydrochloric acid. The titration is complete when 107.8 mL of the acid has been added. What is the mass (in gra ...
A mixture consisting of powdered granite and sugar. Water is added and the mixture is stirred then filtered. What is presented on the filter paper? What is present in the filtrate(the liquid obtained in the filtration)? ...
1) If Congress taxes CO2 production at $40 per ton of CO2, what is the tax to burn one ton (2000 pounds) of coal which is 75% carbon? 2) How much heat energy can you get from burning that ton of coal? Take the book value ...
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Why might a bank avoid the use of interest rate swaps, even when the institution is exposed to significant interest rate
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Compute the present value of an annuity of $ 699 per year for 19 years, given a discount rate of 6 percent per annum. As