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A mineral oil has a density of 0.875g/cm^3. Suppose you spread 0.65g of this oil over the surface of water in a large dish with an inner diameter of 21.6 cm. How this is this oil layer? Express the thickness in centimeters.
Cake alum, aluminum sulfate, is commonly used to purify sewage. What mass of precipitate, aluminum hydroxide, forms whn 185.5 mL of 0.533 M NaOH is added to 627 mL of a cake alum solution that contains 15.8 grams per liter
How many distinct tetrapeptides can be made from the three amino acids leucine, histidine, and valine
If an electric car is capable of going 220. km on a single charge, how many charges will it need to travel from Boston, Massachusetts to Miami, Florida, a distance of 1486 mi, assuming that the trip begins with a full charge?
Correct orders the solubility, from greatest to least, of NaCl in the solvents BF3, H2O, and CH3(CH2)2OH
The stock solution of KMnO_4 has a concentration of 2.6 X 10 ^ -4M. The pipette has a volume of 10.0mL. What is the amount of KMnO_4 delivered to the solution, in moles
How many moles of urea (60. g/mol) must be dissolved in 100 g of water to give a 2.5 molal solution?
Write the formula for ionic compound formed from acetate anion ch3coo and each cation. Na, Ba, Al, Ni
Suppose that each sphere represents 6.7×1021 molecules and that the volume of the container is 1.0 L. What is the rate constant for the reaction in the usual units?
sodium azide a compound containing only sodium na and nitrogen n is used as a propellant for inflating airbags in some
Oxygen is composed of only one kind of atom and can't be separated into simpler substances. What type of matter is it
A 2.42-L flask is filled with propane gas (C3H8), at 1.00 atm and -13.0°C. What is the mass of the propane in the flask.
A solution of ethanol (C2H5OH) in water is prepared by dissolving 72.0 mL of ethanol (density = 0.79 g/cm3) in enough water to make 300.0 mL of solution. What is the molarity of the ethanol in this solution?
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