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Use the van der Waals equation of state to calculate the pressure of 4.00 mol of NH3 at 455 K in a 5.90-L vessel.Use the ideal gas equation to calculate the pressure under the same conditions.
How many seconds after the start of the reaction does it take for the reactant concentration to decrease to 0.0131 M?
Estimate the total calories in a slice of bread that has 9.0 g of carbohydrates, 2.0 g of protein, and 1.0 g of fat. What percentage of total calories is from fat?
What volume of O2 gas (in L), measured at 782 mmHg and 25C is required to completely react with 53.2 g Al
Chromium metal can be plated from an acidic solution of CrO3. CrO3(aq) + 6H+(aq) + 6e- -> Cr(s) + 3H2O How many grams of chromium will be plated by the passage of 19,300 C (coulombs)?
How much PV work is done if 88.0 grams of C 2H 4 ethylene and 120 grams of hydrochloric acid HCl are permitted to react at atmospheric pressure and the volume change = -70.3 Litres?
Liquid sodium is being considered as an engine coolant. How many grams of liquid sodium (minimum) are needed to absorb 6.10 MJ of energy (in the form of heat)
An oxygen tank contains oxygen at a pressure of 70 kPa. When the pressure drops to 36 kPa, the temperature increases from 300 K to 350 K. If the initial volume is 9 L, what is the final volume?
A solid Silver Group (Anion) unknowon that contains only sodium ion as a catio is acidified and divided into tow portions, to both of which 6 M HC2H3O2
Determine the rate constant for the reaction at the temperature of 75 degree celsius?
Helium-oxygen mixtures are used by divers to avoid the bends and are used in medicine to treat some respiratory ailments. What percent (by moles) of He is present in a helium-oxygen mixture having a density of 0.508g/L at 25C and 721mmHg?
A voltaic cell is created with one half-cell consisting of a copper electrode immersed in 1.0 M CuSO4 solution and the other half cell consisting of a lead electrode immersed in a 1.0 M Pb(NO3)2 solution. Each half-cell is maintained at 25o C. Wha..
calculate the specific heat capacity of zinc given that a 65.5g sample loses 2008J of heat when cooled from 100.0 degrees celcius to 21.1 degrees celcius.
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