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The solubility of barium hydroxide in water at 20 degrees Celsius is 1.85g/100 water. a solution is made up of 256 mg in 35.0 g of water. is the solution saturated ? if not . how much more barium hydroxide needs to be added to make a saturated solution ?
a flask is filled with 1.20 of argon ar gas at the temperature ofnbsp twenty five degree celsius . a sample of c2h6
caluclate the molecular mass of the compounds of Caffeine and Epinephrine. Round to the hundredth's place.
How much heat is required to warm 1.3kg of sand from 30 degree Celsius to 100 degree Celsius? (According to my notes- specific heat capacity of sand is .84 J/(g x Celsius)
an aerosol spray can with a volume of 270 ml contains 3.2 g of propane gas propellant. what is the pressure in the can at 20 c.
Diethyl ether is a volatile organic compound. the vapor pressure of diethyl ether is 401 mm Hg at 18 degrees celsius and the change in H vapor = 26.0 kJ/mol. Calculate the vappor pressure of diethyl ether at 0 degrees C.
Methane enters a heat exchanger at a volumetric flow rate of 120.0 m3/min, at a pressure of 1.013 bar and temperature of 5.0°C. At these conditions, the specific enthalpy of methane is -45.181 kJ/kg.
An aluminum foil package contains 75 square feet of foil that weighs 12 ounces. Aluminum has a density of 2.70 g/cm^3. What is the approx thickness of the foil in mm
Is density of an organic molecule directly related to the molecular weight of a substance. (That is, does density always increase when molecular weight increases) Use the examples above to explain.
How many grams of HCl are produced according to the following equation, H2 + Cl2 = 2 HCl, when 4.0 g of hydrogen reacts completely.
Draw the structure of the product that is formed when methyl propanoate undergoes a reaction with an excess
You start with 100.0 mL of a 0.2500 M solution of NaCl sitting in a beaker. After several days you test the solution and find that it is now 0.3125 M. How much water must have evaporated?
For my prelab questions I was asked "During the work up, the product layer is washed one with water, once with 5% sodium bicarbonate solution, and once again with water. What is the purpose of these washings".
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