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1.What is the pressure in a 23.0L cylinder filled with 0.740mol of nitrogen gas at a temperature of 325K? (answer using atm) 2. What is the temperature of 0.460mol of gas at a pressure of 1.5atm and a volume of 12.8L? (answer using K) 3. A sample of gas has a mass of 0.560g . Its volume is 112mL at a temperature of 75 degrees C and a pressure of 758mm Hg . Find the molar mass of the gas. (g/mol)
The relationship between Kp and Kc for gaseous reactions depends on the change in the total moles of gas between reactants and products. For each of the equations given at the right, select the correct relationship between Kp and Kc from the list ..
unused lead nitrate to the container marked"sodium nitrate". What could the student do to get all the led ions out from the sodium nitrate?
most community water supplies contain 0.5 ppm chlorine added for purification. what mass of chlorine must be added to
Some insects produce antifreeze in cold weather; the antifreeze is glycerol. How much glycerol must an insect produce per gram of body fluid (taken to be water) to survive at -5.0C
When 0.069 mol of aluminum sulfate are dissolved in enough water to make 485 milliliters of solution, what is the molar concentration of aluminum ions?
How much heat is required to vaporize 353 g of liquid ethanol at its boiling point? ΔHvap = 38.6 kJ/mol.
Use the formula for ?G to find ?G for a reaction if ?G° = 7.27 kJ?/?mol, T = 282 K, R = 8.31 × 10?3 kJ?/?mol?•?K, and Q = 0.67. Also, tell whether the reaction will shift toward the products or reactants to reach equilibrium
Calcium metal has a density of 1.55g/cm3 and crystallizes in a cubic unit cell with an edge length of 558.2pm. a. how many Ca atoms are in one unit cell?
Which has the lower concentration of hydrogen ions, vinegar at pH 3 or tomato juice at pH 4? How many times fewer hydrogen ions? Which is more acidic?
The charges of the ions in an ionic compound affect the strength of the electrostatic attraction holding that compound together. Based on ion charges, rank these ionic compounds by their expected melting points.
estimate the enthalpy change for the combustion of one mole of acetylene c2h2 to form carbon dioxide and water vapor.
calculate mass of CCl 4 that formed if 1.5 moles of CH 4 react with 1.4 moles of Cl?
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