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How many grams of hydrobromic acid (HBr) must be dissolved in 720 ml of water to make a solution with a pH = 6.2?
what is qvib at a temperature of 3100 K, keeping the zero point energy and referenced to v= 0? What is the vibrational contribution to CV, at the temperature 2600 K?
Gaseous hydrogen has a density of 0.0899g/L at 0 degrees Celsius. How many liters would you need if you wanted 1.0078 g of hydrogen?
Calculate the pH of a solution formed by mixing 65 mL of 0.31 M NaHCO3 with 75 mL of 0.10 M Na2CO3.
a cylinder of He gas has a volume of 25.0L at 22 degrees C and 5.6atm. How many moles of He are in such a cylinder?
A balloon was filled to a volume of 2.50 L when the temperature was rm 30.0 C. What would the volume become if the temperature dropped to rm 11.0 0C.
When 50.0 mL of water containing 0.50 mol HCl at 22.5°C is mixed with 50.0mL of water containing 0.50 mol NaOH at 22.5°C in a calorimeter, the temperature of the solution increases.
A sealed balloon is filled with 2.20 L helium at 23°C and 1.00 atm. The balloon rises to a point in the atmosphere where the pressure is 190. torr and the temperature is -35°C
Consider the following equilibrium process at 686°C: CO2(g) + H2(g) ? CO(g) + H2O(g) The equilibrium concentrations of the reacting species.
Compute the mass of air in an air-filled tire and the also determine the mass of He in a helium-filled tire
Identify the largest heat of combustion, small heat of combustion and highest boiling point for: heptane(i), 3-methylhexane(ii), nonane(iii)
The equilibrium constant, Kc, for the following reaction is 1.29E-2 at 600 K: COCl2(g) CO(g) + Cl2(g)
If vitamin A is 83.86% Carbon and 10.56% Hydrogen by mass then determine the the molecular formula this vitamin A.?
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