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The electron affinity of an atom of chlorine gas is -349 kJ/mol. If this energy is in the form ofelectromagnetic radiation, what is the frequency of the radiation? Is the radiation emitted orabsorbed?
You have a 10.40 g mixture of table sugar (C12H22O11) and table salt (NaCl). When this mixture is dissolved in 150. g of water, the freezing point is found to be -2.24°C. Calculate the percent by mass of sugar in the mixture.
The gas pressure in an aerosol can is 1.8 atm at 25 degrees celsius. if the gas is an ideal gas what pressure would develop in the can if it were heated to 475 degrees celsius?
Calculate the percentage of chlorine in a sodium hypochlorite powder (disinfectant for pools) if 5.0 kg of powder gives off 2.3 kg of chlorine.
What is the pressure (in atmospheres) of a sample of gas trapped in the closed-tube mercury manometer
Isra fills two identical balloons at identical temperatures. She fills one with O2 gas and the other with O3 gas. Which balloon will deflate faster? Why?
If 1020C of charge is passed through a solution of AgNO3(aq), calculate the number of moles of silver deposited.
The molecular mass of propanoic acid is 75.1 amu. Calculate the molecular mass of methyl ethanoate, an isomer of propanoic acid. Express your answer with appropriate units.
a 26.0 ml sample of a liquid was found to have a mass of 13.0g. what is the density of the liquid?
The 9.163 g their air Air Cs equals 1005J/KG c in an inflated balloon is warmed over a toaster and increases in temperature by 11°C the balloon expands against one atmospheric pressure and changes volume for one liter to two liters
Octane has a vapor pressure of 40. torr at 45.1 degrees celcius and 400. torr at 104.0 degrees celcius. What is its heat of vaporization (R=8.214 J/K mol)
The length and width of the settling tanks (two rectangular units are desired with a length to width ratio of 3:1). Assume the average depth of the tank is 4m.
The isomerization of methyl isocyanide, CH3NC -> CH3CN, follows first-order kinetics. The half-lives were found to be 161 min at 199 degrees celcius and 12.5 min at 230 degrees celcius. Calculate the activation energy for this reaction.
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