Determine what the mass of a sample of mercury be
The specific gravity of mercury is 13.64 . What would be the mass of a sample of mercury that occupies a volume of 4.55 mL?
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A certain first-order reaction (A to products) has a rate constant of 4.20×10-3 at 45 degrees celcius. How many minutes does it take for the concentration of the reactant,[A] , to drop to 6.25 of the original concentration?
To what volume will the gases expand against a constant pressure of 660. torr if all the energy of combustion is converted into work to push back the piston?
What mass of titanium displaces 65.2 mL of water at 25 ^circ {rm C}
What is the molality of a solution prepared by dissolving 413 mg of KBr in 6.45 mL of water at 25.0 0C. The density of water at 25.0 0C is 0.997 g/mL.
Calculate the heat released when 1.42 L of Cl2(g) with a density of 1.88 g/L reacts with an excess of sodium metal at 25°C and 1 atm to form sodium chloride.
When heated, lithium reacts with nitrogen to form lithium nitride. What is the percent yield of the reaction if 13.9 of Li is heated with 33.3 g of N2 and the actual yield of Li3n is 6.64 g?
Calculate the mass of silver chloride required to plate 175 {rm mg} of pure silver.
A piece of silver (25 g) is heated to 100 degrees celsius, then dropped into 42.5 g of water with a temperature of 21.7 celsius. Assume they come to the same temp, what is the final temp of the silver and water?
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