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A gas diffuses only 0.5 times as fast as an oxygen molecule at the same temperature. Explain what is the molecular weight of the gas?
You identified your unknown compound. How you could use this compound to determine the Kf value for ethyl alcohol? Explain what you would do experimentally.
Ligands approaching in a tetrahedral pattern cause some orbitals to be raised in energy. How many orbitals are on the lower energy level?
How high must a waterfall be for the water to change temperature by 0.1K during its fall (assuming no evaporation)
whole bunch of different PE diagrams and I'm asked which one is the highest temperature dependent and which one is the lowest
a given mass of neon gas has a volume of 25.0 liters at a pressure of .75 atm. if the pressure is changed to 300.0 torr and the temperature remains constant , what will the volume of neon be
For the following reaction, 3.00 grams of chlorine gas are mixed with excess sodium iodide. The reaction yields 4.38 grams of sodium chloride.
When measuring the specific heat of a metal, why is it best to use the minimum amount of water needed to cove the metal. (hint: consider the size of the temperature change)
The neutrons interact with with 6Li to produce tritons (nuclei of 3H), which, in turn, interact with the oxygen to produce 18F. What are the two nuclear reactions?
Calculate the OH- concentration of a solution that has [H3O+] of 3.5 x 10 -10M. Is the solution acidic, base, or neutral? report answer in two decimal places.
a gaseous mixture of o2 and n2 contains 30.8 percent nitrogen by mass. what is the partial pressure of oxygen in the
Calculate the potential of a hydrogen ( p= 1.02 atm) electrode in an aqueous solution of HBr (0.05 m ) at 298 K A) assuming ideal solute behavior. B) using the Deby- Huckel equation.
Calculate the pH at each point listed for the titration of 50.00mL of 0.115 M alanine with 0.250 M NaOH, where Vb is the volume of added NaOh. Alanine has a pKa1=2.34 and a pKa2=9.87
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