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For many years, drinking water has been cooled in hot climates by evaporating it from the surfaces of canvas bags or porous clay pots. How many grams of water can be cooled from 51.1 ? to 26.5? by the evaporation of 10.6 g of water?
The heat of vaporization of water in this temperature range is 2.40 kJ/g. The heat capacity of water is 4.184 J/g.K. Answer in grams of water
A solution is prepared by mixing 50.0 mL of 0.11 M Pb(NO3)2 with 50.0 mL of 1.3 M KCl. Calculate the concentrations of Pb2+ and Cl - at equilibrium. Ksp for PbCl2(s) is 1.6* 10-5.
When the substance is dissolved in a 1.20x10-3 M solution of HA, the catalyzed rate constant was found to be 3.20x10-5. Calculate the dissociation constant, Ka, of HA.
Calculate the mass and volume of 150.0 mmol of isopentyl alcohol and the theoretical yield of isopentyl acetate
What is the Volume of 1.05 mol of Benzene (C6H6) at 20.7 degrees C. The density of Benzene is 0.879 g/mL.
How much free energy is made available by the pH gradient and membrane potential for the transport of protons INTO the cell?
Gold can be hammered into extremely thin sheets called gold leaf. If a 202-mg piece of gold (density = 19.32 g/cm3) is hammered into a sheet measuring 2.4 ft multiplied by 1.0 ft, what is the average thickness of the sheet in meters?
It takes 47 mL of 0.124 M KOH to neutralize 47.8 mL of H2SO4 solution. What is the concentration of the H2SO4 solution? Answer in units of moles/liter
Air contains nitrogen, oxygen, argon, and trace gases. if the partial pressure of nitrogen is 587 mm Hg, Oxygen is 158 mm Hg, argon is 7 mm Hg, and trace gas pressure is negligible, what is the atmospheric pressure?
What is the height of the column that contains a solution of Sucrose (C12H22O11) with 21% weight percentage of Sucrose?
Using this equation, how many moles of water are produced when .875 moles of methane burn?
calculate the mass (g) of the excess reactant after thereaction is complete e. calculate the theoretical yeild (g) of 2,2dibromopropane
Calculate the five points indicated in the experiment introduction and show these values in a small table along with one sample calculation.
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