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Define a 100ml sample of water is taken from the Pacific Ocean, as well as the water is allowed to evaporate. The salts that remain mostly NaCl have a mass of 3.85g. Compute the original concentration of NaCl in g per liter in the water sample.
What mass of glucose (180.0 g/m) must be added to 0.50 kg of water to increase the boiling point of the solution by 2.0 degrees C?
A heliox deep-sea diving mixture contains 6.0% oxygen and 94.0% helium.What is the partial pressure of oxygen when this mixture is delivered at a total pressure of 9.0
a the molar heat capacity of a diatomic molecule is 29.1jkmiddotmol. assuming the atmosphere contains only nitrogen
if 58.3 grams of a 14 mm solution of naoh were boiled to dryness how much naoh would remain? if the recovered naoh from
an energy of 353 kJ/mol is required to cause a Mg atom on a metal surface to lose an electron. calculate the loses frequency of that can ionize a Mg atom.
question the enthalpy of vaporization of carbon tetrachloride is 30.0 kjmol at its normal boiling temperature of 80.7
What is the maximum work you can obtain from 16.0 g of nickel in the following cell when the emf is 0.89 V? Ni(s) | Ni2+(aq) || Ag+(aq) | Ag(s)
The reaction will become more spontaneous. B) The spontaneity of the reaction will not change. C) The reaction will become less spontaneous. D) ?G will decrease. E) K will decrease.
The decomposition of phosphine, PH3, to P4 (g) and H2 (g) is first order. Its rate constant at a certain temperature is 1.1 min^-1. Calculate its half life.
a 430 cm3 of water at 93degc is mixed with 95 cm3 of water at 16degc. calculate the final equilibrium temperature
It takes 54.0 J to raise the temperature of an 8.00 g piece of unknown metal from 13.0rm ^circ C to 24.5^circ{C}. What is the specific heat for the metal?
You need 70.2K to raise the temperature of 34.0 g of ammonia from 23 c to 24 c. Calculate the heat capacity of ammonia
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