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Hydrogen gas has a Henry's Constant of 7.8 x 10-4 mol/kg . bar@ 25 degrees celcius when dissolving in water. If the toralpressure of gas (H2 gas plus water vapour) over water is 1.0 bar,what is the concentration of H2 in the water in grams permililitre?
The following results were obtained from a titration of a weak acid with a strong base: Volume NaOH added = 22.35, 22.47, 22.48, 22.49, 22.51, 22.51, 22.53 mL. and determine whether or not the data point should be rejected at the 90% confidence le..
What is the dry basis concentration of carbon dioxide using the concentration data given below. Conc. CO2 (Wet) = 15.4% and Conc. H2O = 4.3%
calculate (a)molality? (b)molarity of NaCl? (c) What is the mass/mass and remove the most loosely held e- from a gaseous atom in a ground state
The beginning of the quetsion The value is called Avogadro's number. The term formula unit is a generic phrase that can mean a molecule, atom, ion, or whatever is represented by the chemical formula.
A container holds equal masses of methane gas (molar mass 16.05 g/mol) and oxygen gas (O2, 32.00 grams/mol) The partial pressure of CH4 is how many times the partial pressure of O2?
If the decay of trihalomethane is first order,and 90% of the trihalomethanes in glass of tap water are gone after 3 hours, what is the decay rate constant
Consider a stoppered flask containing benzene, iodine, and air, which has reached equilibrium at 298K. Which one of the following statements concerning the system at equilibrium is true?
The equilibrium constant Kc for this reaction is greater than one. Based on this information, which of the following statements is correct?
What is the age of the wine in the glass on the left, and the glass on the right? b. What assumption(s) do you have to make in order to compare their tritium counts?
A sample of 35 millimole of Krypton gas expands reversibly and isothermally at 373K from 5.25 cubic centimeters to 6.29 cubic centimeters. The internal energy, U, increases by 41.75 J.
explain how to correct for the partial of water vapor when calculating the partial pressure of a dry gas is collected
Write the balanced equation for the net cell reaction for the voltaic cell in acidic solution. (First two are the anode, last two are the cathode)
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