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What mass of sucrose (C12H22O11) should be combined with 500 grams of water to make a solution with an osmotic pressure of 8.70 atm at 295 K? (Assume the density of the solution to be equal to the density of the solvent.)
magnesium undergoes a single displacement raction with hydrochlic acid. how many grams of hydrogen gas will be produced from the reaction of 3.00 g of magnesium with 4.00 g of hydrochloric acid? identify the limiting and excess reactants.
a toothpaste contains 0.24 by mass sodium fluoride naf and 0.30 by mass of triclosan c12h7cl3o2. the mass of one tube
Ammonia has a melting point of 195 K and a normal boiling point of 240 K. At 225 K and 1atm, ammonia exists primarily as
Liquid Nitrogen comes in large cylinders that require special tank carts and hold 120L of liquid at 77K. Given the density of liquid nitrogen of 0.840g/cm3, use the van der Waals equation to estimate the volume of nitrogen of the nitrogen gas afte..
Magnesium reacts with sulfuric acid according to the following equation: Mg (s) + H2SO4 (aq) ---> MgSO4(aq) + H2 (g). How many liters of hydrogen gas can be made from 65.6 g of magnesium at STP
Calculate the theoretical yield of C2H5Cl when 139 g of C2H6 reacts with 232 g of Cl2 , assuming that C2H6 and Cl2 react only to form C2H5Cl and HCl .
What will be wavelength required for a baseball (mass = 149 g) traveling at a speed of 41.6 m/s
the volume of 0.009450 M Zn2+ needed to titrate the excess reagent after addition of 50.00 mL of 0.008640 M EDTA to a 25.00-mL aliquot of this solution.
A voltaic cell made of a Cr electrode in a solution of 1.0 M in Cr^3+ and a gold electrode in a solution that is 1.0 M in Au^3+.
How much heat in kilojoules is evolved or absorbed in the reaction of 233.0 g of calcium oxide with enough carbon to produce calcium carbide. Is the process exothermic or endothermic
A mixture contains H2 at 325torr pressure, N2 at 475torr pressure, and O2 at 650torr pressure. What is the total pressure of the gases in the system
Determine the equilibrium total pressure in a closed reaction flask if 0.040 mol of NO and 0.020 mol of O2 were placed in the evacuated reaction flask and heated to 100°C, resulting in a 75%-yield of NO2.
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