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Question 1: How many moles of carbon dioxide are contained in 7.75 grams of carbon dioxide.
Question 2: How many moles of CH4 contain 5.39 x 1024 hydrogen atoms??
Question 3: How many molecules are contained in 92.4 grams of PH3?
benzopinacol and benzopinacolone have nearly identical melting points, describe how you might prove that samples of the two compounds are different
A 2.63 L flask is filled with carbon monoxide at 27°c until the pressure is 6.72 ATM. Calculate the total pressure after 2.89 moles of carbon dioxide has been added to the flask.
what is the total vapor pressure4 at 20deg c of a liquid solution containing 0.30 mole fraction benzene c6h6 and 0.70
write the formula of the complex ion formed between a. the ligand cl- and the copper ii ion with a coordination number
Explain what is meant by phase imaging AFM and what is an example of an experiment where specific properties can be quantified in an AFM experiment.
a.) Can you be certain that the organic layer would from the upper layer? Eplain in details. b.) How could you test to determine which is the non aqueous layer? Explain in details.
A student finds that during a reaction, the 150.g of water in the reaction cup warms from 21.0 Celsius to 28.5 degrees Celsius.
What is the molality of ethylene glycol in an engine's cooling system to ensure the solution doent freeze in a "normal" winter. (minimun temperature of -10C)
For a fixed amount of gas at a constant temperature, the volume increases as the pressure what
A sample of ideal gas is in a sealed container. The pressure of the gas is 695 torr, and the temperature is 27 degrees celsius. If the temperature changes to 84 degrees celsius with no change in volume or amount of gas, what is the new pressure,P2..
A sample of ammonia gas was allowed to come to equalibrium at 400k. 2NH3(g) N2(g) + 3H2(g) At equalibrium, it was found that the concentration of H2 was 0.0584 M, the concentration of N2 was 0.0195 M and the concentration of NH3 was 0.430 M.
Compute the change in temperature when 1 g sodium chloride is dissolved in 250.0 mL of water is initially at 27 C. The heat capacity of water is 4.184 J/mL/K. Neglect the heat capacity of the NaCl.
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