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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
a 0.2 m3 rigid tank initially contains refrigerant 134a at 1 mpa saturated vapor. the tank is connected to a supply
lactose is a sugar most commonly found in milk and is made up of carbon hydrogen and oxygen. after analyzing a sample
A gaseous fuel mixture stored at 744mmHg and 298 K contains only methane and propane. When 13.0L of this fuel mixture is burned, it produces 769kJ of heat. What is the mole fraction of methane in the mixture?
Problem- What is the total number of moles (n) of electrons exchanged between the oxidizing agent and the reducing agent in the overall redox equation: H2S + HNO3 --> S + NO (acidic solution)
Calculate the pressure in the mindanao trench. depth = 11.5 km and the average mass density of sea water
Calculate the work done in joules by the reaction when 0.21 g of Na reacts with water to form hydrogen gas at 1°C and 3.0 atm in an open container.
What are the values of the entropy changes (system, surroundings, and universe) for the cooling of 1 mol of O2 (g) from 298 K to O2 (l) at 90.19 K if the process is done a. Reversibly b. Irreversibly by placing the sample in liquid hydrogen at 13...
You have proven sulfanilamide is capable of forming a stable and selective crystal lattice. Draw additional molecules of sulfanilamide and hypothesize the intermolecular interactions that are most important for providing a stable and selective cry..
Assuming that the heat capacities don't change with temperature, how much energy in kilojoules is needed to heat 5.25g of Hg from a temperature of -59.5C to 43.0C
Question- a) Write a spontaneous redox reaction in acidic conditions using the following two reduction potentials-
Generate the conversion equations to calculate the degrees in Celsius, Fahrenheit and Kelvin. Hint: Freezing point of water is found at 5.5 'N
If this arsenic is present as arsenate, AsO4^3-, what mass of sodium arsenate would be present in a 1.10L sample of drinking water that just meets the standard. Parts per billion is defined on a mass basis as ppb = g solute/g solution 10^9
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