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A gaseous mixture containing 0.150 mol fraction of carbon tetrachloride (CCl4) and 0.850 mol fraction of dry air is initially at 65.0°C and 1121 mmHg. If this mixture is cooled at a constant pressure
1. at what temperature does the CCl4 first start to condense?
2. At what temperature would 30.0% of the CCl4 condense?
The standard enthalpies of formation of SO3(g), S(g) and O(g) are -359.7, +278.8 and +249.0 kJ mol-1, respectively. Use these data to calculate the average bond energy (in kJ mol-1) of the S=O double bond.
what statement about alcohols, ethers, and amines is not correct? a- ethyl group is represented by C2H5 b- CH3 is known as methyl group c- there are primary, secondary, tertiary classifications for alcohols
The valence shell of the element X contains 2 electrons in a 5s subshell. Below that shell, element X has a partially filled 4d subshell. What type of element is X?
The volume of potassium permanganate required to titrate 10 mL of the new hydrogen peroxide (mL):20mL (c) Calculate the concentration of H2O2 from the volume of KMnO4 used and the stoichiometry of the reaction (MW of H2O2 is 34.01).
calculate the concentration of each diluted reactant in the 50.0ml volumetric flask. then calculate the concentration of each reactant in the reaction beaker before any reaction has occured.
How many grams of ethylene glycol (automobile antifreeze, C2H6O2) dissolved in 3.55kg of water is needed to lower the freezing point
a particle moving 30,816 km/hr has a wavelength of 725 nm. What is the mass of the particle?
triethylene glycol and heavy mineral oil are both high boiling, and high molecule solvents. What in their structural properties renders triethylene glycol
A single pulse of a laser yields an average of 5.00 × 1018 photons with λ = 633 nm. If melting ice to water at 0°C requires 6.01 kJ/mol, what is the fewest number of laser pulses need to melt 10.0g of ice?
determine the freezing point depression, delta Tf, for the ionic solution. b. determine m effective for ionic solution. c. determine the van't Hoff factor, i, for the ionic compound.
coal fired power plants freqently encounter coal that is 3.90% sulfur by mass. when this coal is burned at a power plant the sulfur is converted into sulfur dioxide gas,
if you have 370 ml of water at 25 degrees Celcius and 130mL of water at 95 degrees C. what is the final temperatue of the mixture?
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