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A 2.3-L flask of H2(g) at 1.8 atm and a 4.8-L flask of He(g) at 2.4 atm are connected by a tube of negligible volume. (See the figure below.) A valve on the tube is opened, allowing the gases to mix at constant temperature with no reaction. What is the final pressure?
a mixture of 0.140 moles of C is reacted with 0.117 moles O2 in a sealed, 10.0 L vessel at 500 K, producing a mixture of CO and CO2. the total pressure is 0.640 atm. What is the partial pressure of CO
During a strenuous workout, an athlete generates 2120.0 kJ of heat energy. What mass of water would have to evaporate from the athlete's skin to dissipate this much heat?
Problem- Write a balanced chemical equation for the reaction of solid potassium with liquid water. (Use the lowest possible coefficients. Include states-of-matter under SATP conditions in your answer
Determine the percent yield for the reaction between 17.93g of Sb4O6 and excess C if 19.1g of Sb is recovered alone with an unknown amount of CO
The normal boiling point of actone is 56.2 C and the molar heat of vaporization is 32.0 kJ/mol. At what temperature will acetone boil under a pressure
A sample of oxygen gas is collected over water at 23 Celsius at a barometric pressure of 751mmHg (the vapor pressure of water at 23 Celsius = 21mmHg). The partial pressure of oxygen gas in the sample collected is
Ka for HCN is 4.9 × 10-10. What is the pH of a 0.068 M aqueous solution of sodium cyanide
What is an offshore oil platform?
How many atoms of each element are present in one molecule of the following compounds?
For the reaction: N2(g) + 2 O2(g) ?? 2 NO2(g), Kc = 8.3 × 10-10 at 25°C. What is the concentration of N2 gas at equilibrium when the concentration of NO2 is twice the concentration of O2 gas
The Liquid nitrogen has a density of 0.808 g/mL at -196 C. If 540.0 mL of LN2 is injected into a weather balloon to inflate it, define what is the final volume of the balloon at 1 bar and 27 C
The density of potassium, which has the BBC structure and one atom per lattice point, is 0.855 g/cm3. The atomic weight of the potassium is 39.09 g/mol. Calculate the lattice parameter and the atomic radius of potassium.
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