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The density of a gas is 3.48 g/L at STP. What is its molecular weight? Select one: a. 44.6 g/mol b. 147 g/mol c. 32.0 g/mol d. 224 g/mol e. 78.0 g/mol
a chemist weighed out 5.25 g of a mixture containing unknown amounts of baos and caos and placed the sample in a 1.50-l
Starting out on a road trip you inflate your tires on your car to the recommended pressure of 46.5 psi on a day when the temperature is -5.0 C. Upon arrival at your destination, the temperature is now 28.0 C/ The volume of the tires has increased ..
When 10.0 g of calcium carbonate was mixed with 150.0 ml of 1.00 M hydrochloric acid, a gas formed. What is the theoretical yield,in liters, of the gas measured at 300 torr of pressure and a temperature of 27.0 degre celcius?
8.0 moles of CO2 and 9.0 moles of H2O are places in a 5.0L vessel. When equilibrium is established, [C2H4]=0.45 M. Calculate Keq
Calculate the concentrations of each ion present in a solution that results from mixing 49.6 mL of a 0.20M NaClO3(aq) solution with 25.3 mL of a .20 M Na2SO4(aq). Assume that the volumes are additive.
To the solution in problem 1 (d) at 100 degrees celsius, 10g of water are added, and the solution is cooled to 0 degrees celsius... (problem 1d: the number of grams of water required to dissolve a mixture containing 15 g KNO3 and 3.5 g CuSO4 * 5 H..
what is the pressure exerted onto the closed end of an apparatus if the atmospheric pressure is 720 torr and the height of the water is 22.3 cm.
what volume of 0.150 M KCl solution is required to react completely with 0.150 L of a 0.175 M Pb(NO3)2 solution according to the chemical reaction
discuss how the shielding by core electrons is analogous to putting a frosted-glass lampshade between the lightbulb and your eyes.
Determine the mass of solid sodium formate of MW 68.0 must be combined to 150 mL of 0.66 mol/L
The temp of the water and that of the gas are identical at 26°C. How many moles of Helium have been evolved?
Draw all the alkenyl side products that could be formed by dehydration of 2-methyl-2-butanol by e1 mechanism. Propose mechanism for formation of the alkene side products
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