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The heat of vaporization of water is 40.66 kJ/mol. Assuming sweat is 100% water, how much heat is removed from your body through the evaporation of 1.86 g of sweat?
Calculate the molarity of a solution of glycerol made by dissolving 46.000 mL glycerol at 15 ^circ {rm C} in enough water to make 400.00 mL of solution.
The titration reaction is CO3^(2-) + 2H+ yields H2O + CO2 What is the concentration of HCl if 25.9 mL of HCl was needed to to react with 0.311 g of Na2CO3 to reach the end point
2C8H18(g) + 25O2(g) --> 16CO2(g) + 18H2O(g) 0.400 mol of octane is allowed to react with 0.600 mol of oxygen. Which is the limiting reactant?
Calculate how many moles and grams of aluminum chloride can be made from 2.70 g of aluminum and 4.05 of chlorine. find the mass of aluminum chloride 2Al(s)+3Cl3(g)---2Alcl3(s).
The gasoline tank of an automobile contains 83 kg of gasoline. The gasoline combines with 332.0 kg of oxygen. What is the total combined mass of the carbon dioxide and water produced by combustion in the engine
the next three questions pertain to the complete combustion of ethyl acetate under constant pressurenbspch3cooc2h5l
The difference between the energy of the photons and the kinetic energy of the electrons corresponds to the energy needed to remove the electrons (that is, the ionization energy). Suppose that a PES experiment is performed in which mercury vapor i..
At what Kelvin temperature will the reaction proceed 4.50 times faster than it did at 309 K?
What is the melting point of a 20% by weight aqueous solution of a sugar whose molecular weight is 180 g/mol. The Kb for water is 0.51 (degrees Celsius*kg)/mol.
Calculate the mole fraction of ethanol, C2H5OH, in a solution that contains 230. grams of C2H5OH and 312 grams of benzene, C6H6.
a molal concentration of 6.25 m has a density of 1.300 g/mL. What is the molar concentration of this solution?
A particular brand of gasoline has a density of 0.737 at 25 . How many grams of this gasoline would fill a 13.6 tank
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