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What is the mole fraction of solute and the molal concentration for an aqueous solution that is 16.0% NaOH by mass?
A pair of theoretical enantiomers is named below. For each stereoisomer, draw the structure. Be sure to specify the stereochemistry via wedge-and-dash bonds.
Determine the molar mass of the nonelectrolyte if the osmotic pressure of the solution = 23.6 atm, also express your answerin g/mol?
A system obtains the amount of heat equal to q > 0 from the surroundings at constant volume. Will the internal energy of the system increase, decrease, or remain constant? Will the temperature of the system increase or decrease
A fishing boat accidentally spills 6.0 barrels of diesel oil into the ocean. Each barrel contains 42 gallons. If the oil film on the ocean is 2.5 × 102 nm thick, how many square meters will the oil slick cover?
What is the osmotic pressure of a solution made from dissolving 30.0 g of glucose, C6H12O6, in 700 mL of water at 21.0C
A solution is made by mixing 41.0 mL of ethanol, C2H6O, and 59.0 mL of water. Assuming ideal behavior, what is the vapor pressure of the solution at 20 °C?
how many liters of nog are produced when 0.85l of 2.00m hno3 solution is added to 216 of ag according to the equation.
Calculate the dilution factor for all 7 test test tubes. Show all work/calculations. 0.1 ml of the solution from the serial dilution 10^-4, 10^-5 and 10^-6 was pipetted onto three separate agar plates.
If a mixture of gases contained 78% nitrogen at a pressure of 984 torr and 22% carbon dioxide at 345 torr, what is the total pressure of the system?
consider a major oil spill in a lake ( a prototype situation related to Alaska Oil Spill few years ago and many subsequent spills) Amount of oil spilled is 2.9 mega gram (Mg).
Enough of a monoprotic acid is dissolved in water to produce a 0.0197 M. The PH of the resulting solution is 6.41. Calculate the Ka for the acid.
On heating 5.03 g of hydrated barium chloride, 4.23 g is left behind. What is the name of this hydrate?
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