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A gaseous mixture of O2 and Kr has a density of 1.180 g/L at 355 torr and 300. K. What is the mole percent O2 in the mixture?
How many molecules of sucrose (table sugar), C12H22O11, dissolved in 450.0 g of water are needed to make a 1.30 m solution?
Acetylene gas (C2H2) used in welding, produces an extremely hot ?ame when it burns in pure oxygen according to the reaction 2 C2H2(g)+5 O2(g) -→ 4 CO2(g)+2 H2O(g)
Electrons are ejected from sodium metal by any light that has a wavelength shorter than 544 nm. What is the kinetic energy of an electron
Alkenes contain double bonds while alkynes contain triple bonds, Naming compounds containing double as well as triple bonds
During studies of the reaction below, 2 N2H4(l) + N2O4(l) ? 3 N2(g) + 4 H2O(g) a chemical engineer measured a less-than-expected yield of N2 and discovered that the following side reaction occurs
At 0.967 atm, the height of mercury in a barometer is 0.735 m. If the mercury were replaced with water, what height of water (in meters) would be supported at this pressure.
Diet coke Chemistry, You drink a 500 ml bottle of Diet Coke, which has 0 calories. The Diet Coke was chilled to 7 degrees C before you drank it. Approximately how much heat energy is drawn from your body to warm this 500 ml of Diet Coke up to your..
What magnitude of current is required to produce 1.0 kg of sodium metal in one hour by electrolysis?
Calculate the heat released when 1 kg of white phosphorus is allowed to burn in air at a constant pressure of 1 bar.
The titration of 0.7910 grams of an unknown weak acid requires 41.5 mL of 0.139 M NaOH in order to reach the equivalence point.
how would each affect the calculated molecular mass of the solute?
Determine how many grams of Phosphorus tri-fluoride will be produced when 40.1 g of F2 mix, and the reaction has a 78.1% yield?
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