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Use the graph of solubility of O2 in water versus temperature to calculate the value of Henrys law constant Kh for O2 at 8 and 33 degrees Celcius. (8C= .040 L oxygen gas/ L water AND 33C= .023 oxygen gas/ L water)
a sample of nitrogen gas kept in a container of vulume 2.43 L and temp 27degree C exerts a pressure of 4.83 atm. calculate the number of moles of gas present
How many grams of magnesium oxide are formed when 16.4 of oxygen gas, measured at STP, completely reacts with magnesium metal according to this reaction
Write a balance chemical reaction showing that Ru2+ disproportionates in aqueous acid. calculate standard potential and the Gibbs Free Energy for the reaction.
Calculate Ea. Express your answer using two significant figures Ea= kJ/mol Calculate A. Express your answer using one significant figure. A = M-1s-1
The formula needed to solve this problem. Calculating equilibrium concentrations of all three substances: N2(g) O2(g) (equilibrium arrows) 2NO
if the molecular weight of the compound is 120gmol then compute how many mg of the compound p do you have in 20ml of 4
a gas has a volume of 800.0 ml at minus 23.00 degc and 300.0 torr. what would the volume of the gas be at 227.0 degc
How much PV work is done in kilojoules and what is the value of ^E in kilojoules for the reaction of 6.50g of acetylene at atmospheric pressure if the volume change is -2.80L
Determine the pH of a 0.227 M C5H5N solution at 25°C. The Kb of C5H5N is 1.7 x 10-9.
The mass of silica needed to produce one- 325mg of aspirin tablet. the formulae is C4H6O3 + C7H6O3 --> C9H8O4 + C2H4O2
a buffer is created by mixing 26 mL of 3.3M sodium formate and 16 mL of 3 M formic acid. What is the capacity of the buffer if 0.2 M NaOH is added?
What is the mole fraction of NaCl in this solution. what would be the vapor pressure of this solution at 45C? The vapor presssure of pure water is 23.8 torr at 25C and 71.9 torr at 45C
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