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A student found that the mass of an empty specific gravity bottle was 21.431 g. Metal pieces were added to the dry bottle. The specific gravity bottle and the metal pieces together had a mass of 34.899 g. when deionized water was added to the specific gravity bottle containing the metal pieces, the total mass was 43.029 g. The metal pieces were emptied out and the specific gravity bottle filled with deionized water at 20 degrees celcius. The mass of the specific gravity bottle filled with water was 31.408 g. 1. what is the mass of the metal pieces in the specific gravity bottle? 2. what is the mass of the water in the specific gravity bottle when the metal pieces were there? 3.what is the mass of the water in the specific gravity bottle after the metal had been emptied out? 4.what was the mass of the water that was displaced by the metal pieces? 5.What is the volume of the displaced water? 6.What is the volume of the metal pieces? 7.What is the density of the metal pieces?
Calculate the pressure exerted by 20 gram-moles of ammonia at 300 K in a 5-liter container, using : a. the ideal gas equation b. the SRK equation
The combustion of octane produces carbon dioxide and water. If you start with 10.0 mol of octane, what mass of water (in grams) would you expect to produce?
Calculate the rate constant for the reaction when the reactant concentration in a first-order reaction is given 7.30×10-2M after 15.0s and it is also reported 4.40×10-3M after 65.0s . ?
What technology or combination of technologies would you recommend for treating the following contaminated air streams?
What volume (in mL) will it occupy at the same pressure and 277 K? Round your answer to zero places past the decimal.
How much heat is required to warm 12.0 g of ice, initially at -11.0 C, to steam at 113.0 C?
Formic acid, CH2O2, can be decomposed to produce hydrogen. The Lewis structure for formic acid, CH2O2, is show below. The atoms are labeled A, B, C, D, E.
Calculate the molarity of the hydroxide ions in a solution that has been prepared by dissolving 88.7 g of barium hydroxide
An an isothermal process, the pressure on 1 mol of an ideal monatomic gas suddenly changes from 4.00 atm to 100.0 atm at 25°C. Calculate w
Compute ΔHo fusion and ΔSo fusion for this substance If the pressure is increased to 120 bar, the melting temperature increases to 375.88 K..
Hydrazine, ammonia, and hydrogen azide all contain only nitrogen and hydrogen. The mass of hydrogen that combines with 1.00g of nitrogen for each compound is .144, .216, and .240, respectively.
A 739 mL gas sample at STP is compressed to a volume of 244 mL, and the temperature is increased to 24 ?C. What is the new pressure of the gas in Pa?
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