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How many grams of propane (C3H8) are required to heat all of the water in a 50 gallon water heater from 23.4oC to 65.0oC if the water heater (the jacket which contains the water) itself has a heat capacity of 23.4 J/oC and the heater also uses 2.3 kg of copper pipe.
A backpacker wants to carry enough fuel to heat 2.9 kg of water from 27 degrees C to 100.0 degrees C. If the fuel he carries produces 36 kJ of heat per gram when it burns, how much fuel should he carry? (For the sake of simplicity, assume that the..
If a 1,2-diol is subjected to a periodic acid test, a white solid will form when silver nitrate is added. What is the identity of the white solid?
one day you notice that the outside temperature increase by 16 degrees Fahrenheit between your early morning jog and your lunch at noon. what is the corresponding change in temperature in the Celsius and Kelvin scales?
What is the pH of the buffer that results when 11 g of NaCH3CO2 is mixed with 85 mL of 1.0 M CH3CO2H and diluted with water to 1.0 L? (Ka of CH3CO2H = 1.8 ´ 10-5)
At 50 degrees Celsius, the vapor pressures for methanol and ethanol are 406 and 222 torr, respectively. Given a mixture at 50 degrees Celsius that contains 0.2 mol of methanol and 0.1 mol of ethanol, compute the partial pressures of each liquid an..
A compound contain 60.87% carbon, 4.38% hydrogen, and 34.75% oxygen then determine its empirical formula?
Propose a structure for a molecule with a molecular formula C10H13NO and the following 1H NMR data. Briefly explain your answer.
Determine the volume of 0.375 mol of C4H10 gas under the same temperature and pressure conditions?
why do we need to excess FCR? Also give 3 reasons why gallic acid is used as standard for the total phenolic assay?
An unknown gas has been determined to have the empirical formula CH2. At 27°C and 0.966 atm, the gas has a density of 1.65 g/L. What is the molecular formula of this gas
A graduated cylinder contains 31.0 of water. What is the new water level after 38.0 of silver metal is submerged in the water?
If the copper is drawn into wire whose diameter is 8.50 mm, how many feet of copper can be obtained from the ingot? The density of copper is 8.94 rm{g/cm^3}.
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