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A family heats their house with propane gas. The gas companyreports that for an average home it takes 41.589 kJ of heat toraise the temperature of the air inside the house from 60.0 oF to 75.0 oF. How many grams of propane would be needed for the combustionreaction that would produce this amount of heat ?
Use Le Chatelier's principle to explain why the buffer prevents large changes from occuring in PH when
What is the product expected from the reaction of 1.3-butadiene and 3-sulfolene. Why is this not a major concern as a by product
A compound made of elements from group 2A ("M" below) and group 6A ("X" below) of the periodic table would be expected to have a formula
When the third one to precipitate begins, what percent of the first two ions to precipitate still remain undissolved in the sol'n
Calculate the standard enthalpy of the reaction, \Delta {{H}^\circ}_{\rm rxn}, for the thermite reaction: \rm 2Al(s) + Fe_2O_3(s) \rightarrow 2Fe(s) + Al_2O_3(s)
Water flowing through pipes of carbon steel must be kept at PH 5 or greater than limit corrosion if an 8.0 *10^3 Ib/hr water stream contains 10 ppm sulfuric acid and 0.015% acetic acid, how many pounds per hour of sodium acetate trihydrate must be..
Calculate the change in pH when 7.00 mL of 0.100 M HCl(aq) is added to 100.0 mL of a buffer solution that is 0.100 M in NH3(aq) and 0.100 M in NH4Cl(aq).
Write the balanced reaction for the complete combustion f octane (C8H18) and then determine how many moles of oxygen it would require to burn 240.00 moles of octane? 2 350.00 grams of octane?
A 5.00 g sample of KBr at 25.0°C dissolves in 25.0 mL of water also at 25.0°C. The final equilibrium temperature of the resulting solution is 18.1°C.
A reaction of cyclobutene with NBS and light. Why does a bromide produce on the secondary carbon not the tertiary like a normal bromonation. What exactly does NBS do
The standard molar enthalpy of vaporization for water is 40.79 kJ/mol. What mass of steam is required to release 500. kJ of energy upon condensation? (Molar mass of water is 18.02 g/mol.)
flask "a" has a volume of 0.50 L and contains 50 g of a volatile liquid. Flask "b" has a volume of 1.35L and contains 34.8 g of the same liquis. Both flasks are stoppered and both are at 30C. The ratio of the vapor pressure of the liquid in the fl..
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