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A 0.50g sample of vegetable oil is placed in a caloriemeter. When the sample is burned 18.9kj are burned off. What is the caloric value in kcal/g of the oil? I am not sure how to set this problem up. Please help
A particular brand of gasoline has a density of 0.737 at 25C . How many grams of this gasoline would fill a 13.3 tank?
Compare the amount of A extracted by two extractions using 50 mL of diethyl ether each to the amount extracted by a single 100 mL extraction of the ether. Which is more efficient?
The vapor pressure of dichloromethane at 0C is 134mmHg. The normal boiling point of dichloromethane is 40C. Calculate its molar heat of vaporization.
The natural abundance of 107 Ag is 51.84%. How many 107 Ag atoms are present in a piece of silver weighing 150 mg?
25.2 mL of qater are placed in a graduated cylinder. A 22.6 g stone is dropped in, and the water level rises to 32.4 mL. Find the stone's density.
Compute How many mg of the compound P do you have in 20ml of 4% (w/v) solution of P
Iodine gas and bromine gas combine to form iodine monobromide according to the following equation with an equilibrium constant of 1.2 x 102 at 150 0C. I2 (g) + Br2 (g) 2IBr (g)
The Ka of acetic acid is 1.85 x 10-5. What would be the pH of a buffer prepared by mixing 50.0 mL of 1.0 M potassium acetate with 50.0 mL of 1.0 M acetic acid?
What is the vapor pressure of the stored mixture?
Why do lithium and sodium exhibit similar chemical behavior? What is the stadard potential of 1/2 O2 My table says 1.229
When ethyl ether is heated with excess HI for several hours, the only organic product obtained is ethyl iodide
A white precipitate formed when the barium hydroxide solution was mixed with the sulphuric acid. *Mass of filter paper=0.96g *Mass of filter paper and precipitate=5.25g
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