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If a mixture of gases contained 78% nitrogen at a pressure of 984 torr and 22% carbon dioxide at 345 torr, what is the total pressure of the system?
When 50 grams of iron absorbs 1.0 kJ of heat its temperature increases by forty degrees celsius. What is the molar heat capacity of iron?
Provide the FULL mechanisms for the reaction of these three alcohols : 1) 1- butanol 2) 2-butanol and 3) 2-methy-2 propanol with a Lucas reagent
Dibenzoylmethane is not a methyl ketone, but it gives a positive result in the iodoform test when treated with NaOH and I2. Explain this result.
The flame produced by the burner of a gas (propane) grill is a pale blue color when enough air mixes with the propane (C3H8) to burn it completely.
The specific 14C activity of a sample of charcoal is determined to be 12.47 dpm g-1of carbon. What is the age of the sample if the initial activity of 14C in this sample was 13.56 dpm g-1of carbon?
Under certain conditions, a reaction leads to ?SUNIV = -333.5 J/mol*K at 150 degrees C. If ?SSYS = 237.2 J/mol*K at that temperature, determine
Write a chemical reaction equation that shows what happens when HNO3 is added to MnCO3. Remember to include the physical state symbols.
A solution may contain any of the Group III cations. Treatment of the solutio with CIO- in alkaline medium yields a yellow solution and a colored precipitate.
Imagine that you have a 5.50 L gas tank and a 2.00 L gas tank. You need to fill one tank with oxygen and the other with acetylene to use in conjunction with your welding torch
Propanoic acid has Ka of 1.4x10^-5. If we make a solution 0.100M propanoic acid, what concentration of sodium propanoate should be added to give a buffer with a pH of 5.0?
At the temperature of twenty five degree celsius when 1.00 g of sulfur is burned at constant pressure in an atmosphere of oxygen to give SO 2 , and 9.28 kJ of heat is liberated. Determine the ΔHfo of SO 2 ?
If an electric car is capable of going 220. km on a single charge, how many charges will it need to travel from Boston, Massachusetts to Miami, Florida, a distance of 1486 mi, assuming that the trip begins with a full charge?
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