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Consider an apparatus that consists of two flasks joined together by a valve. One flask consists of 10 L of nitrogen gas at 790 torr, whereas the other flask contains 16 L of helium gas at 740 torr. The temperature remains constant at 26?C. The valve is opened and the gases are allowed to mix. What is the total pressure of the gas mixture? 1. 759.2 torr 2. 765.0 torr 3. 1,530 torr 4. 790 torr 5. 740 torr
When MCl4(NH3)2 is dissolved in water and treated with AgNO3, 2 moles of AgCl precipitate immediately for each mole of MCl4(NH3)2. Whats the coordination number of M in the complex?
Given that the density of solid sodium is 0.968 g/cm^3, estimate the atomic (metallic) radius of a Na atom. Assess the value obtained, indicating why the result is only an estimate and whether the actual radius should be larger or smaller than the..
State a net ionic equation for the neutralization reaction of ammonium chloride as well as sodium hydroxide. Identify the spectator ions.
A solution is prepared by dissolving 14.7 g ammonium sulfate in enough water to make 100.0 mL of stock solution. A 11.00 mL sample of this stock solution is added to 56.00 mL of water.
Which alkene is more stable, the E or Z isomer above. why does irradiation go from E to Z rather than the other way around. how will the Rf values from TLC compare
suppose a 5.00 L sample of diatomic oxygen at a given temperature and preesure contains 1.08x10^23 molecules. How many molecules would be contained in 5.00L of hydrogen?
A 29.0-g sample of ice at -11.0°C is mixed with 113.0 g of water at 71.0°C. Calculate the final temperature of the mixture assuming no heat loss to the surroundings.
In the context of small molecules arrange these intermolecular forces by strength:hydrogen bonding, london dispersion forces, and dipole-dipole interactions
Using standard reduction potentials, calculate the equilibrium constants for the following reactions.
Polly Esther determined the Ca2+ ion content of a 100 mL sample of calcium fortified orange juice. After adding 2.0 M HCl solution to the sample, she filtered the juice to remove the pulp and other particulate matter
What is the concentration of Ca2+ ions in a solution of CaI2 that has I- ion concentration of 0.520 M.
The gas-phase reaction Cl(g)+HBr(g) => HCl(g)+Br(g) has an overall enthalpy change of -66kJ. The activation energy for the reaction is 7kJ. What is the activation energy for the reverse reaction?
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