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A human body loses about 360kJ of heat every hour. Presuming that an average human body is equivalent to about 60kg of water, explain what temperature decrease would this heat transfer cause?q=mcΔt
A solution of .25 mol HF diluted to 1.0 L has a hydronium ion concentration of 1.3x10^-2 M. What is the percent ionization of HF
What is the percent yield of a reaction in which 228. g phosphorus trichloride reacts with excess water to form 118 g HCl and aqueous phosphorus acid (H3PO3)?
a sample of oxygen gas occupies a volume of 2.00 l at 27 oc and 2.00 atm pressure.nbsp what volume in l will this
The pH at 25 °C of an aqueous solution of the sodium salt of p-cresol (NaC7H7O) is 11.60. Calculate the concentration of C7H7O- in this solution, in moles per liter. Ka for HC7H7O is equal to 6.7E-11.
A 75.0 L steel tank at 20.0C contains acetylene gas (C2H2) at a pressure of 1.39 atm. Assuming ideal gas behavior, how many grams of acetylene are in the tank?
question if the heat change for the decomposition of 25.0 g hydrogen peroxide is -72.2 kj what is the enthalpy of
Calculate the standard free energy change for the combustion of methane at 25oC. Assume that all reactants and products are gases. Provide an answer correct to 3 significant figures.
What is the quantity of moles, of neon gas if 4.87 L is at a pressure of 0.635 atm and the temperature
How many kilojoules of heat are required to evaporate 1 liter of water at 1 atm if the initial water temperature is 20 degrees Celcius
1. what possible precipitate might form by mixing 50.0 ml of 1.010-4 m nacl with 50.0 ml of 1.010-6m agno3? will it
The maximum kinetic energy observed for these electrons is 1.488 x 10?19 J/electron. What is the wavelength of a laser which will turn the photocell on and cause electrons to be ejected which have absolutely no excess energy
What is the pH of the resulting solution when 25 mL of 0.10 M NaOH is added to 25 mL of 0.25 M HNO3?
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