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The physical and chemical properties of molecules are determined by their shapes. Why? Provide examples.
A certain liquid has a vapor pressure of 92.0 Torr at 23.0 °C and 204.0 Torr at 45.0 °C. Calculate the normal boiling point of this liquid.
How many milliliters of 0.110 are needed to react completely with 25.0 of 0.160 ? How many grams of will be formed?
Calculate the ionic strength of (a) 0.0061 M NaOH (b) 0.0005 M La(IO3)3 Assume complete dissociation at this low concentration and no hydrolysis reaction to form LaOH2.
The precipitate of CaC2O4, weighed 1.437 grams determine the molarity of calcium chloride in the solution?
Estimate the ethylene glycol C2H6O2 mass in gram that should be added to 12.0 L of water to produce a solution for use in a car's radiator as antifreeze that freezes at -23.3oC. Assume the density of water to be 1.00 g/mL and Kf = 1.86oC .kg/mol.
A sample of neon has a volume of 610 mL when it is at a pressure of 867 mmHg. What will be the volume when the pressure is increased to 1760 mmHg
Question- Choose any two temperatures and corresponding vapor pressures in the table given, and use those values to calculate delta Hvap for dichloromethane (in kJ/mol).
Calculate the molarity of a solution made by dissolving 12.5 g of Na2CrO4 in enough water to form exactly 550 mL of solution.
all oxygen gas from a 10.0-L container at a pressure of 202 kPa is added to a 20.0-L container of hydrogen at a pressure of 505 kPa. after the transfer, what are the partial pressures of oxygen and hydrogen?
Elemental exonium (not a real element) consists of two major isotopes
use the appropriate standard reduction potentials to calculate the value of K at 25 degrees Celcius for:
Question- A sample of gas at a pressure of 1.79 atm and a temperature of 21.2oC is heated to 48.5oC. If the gas expanded to 2.59L from 2.12L, what is the pressure of the heated gas
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