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Consider the equilibrium Na2O(s) + SO2(g) <----->(actually 2 arrows facing opposite direction) Na2SO3(s). (a) Write the equilibrium constant-expression for this reaction in terms of partial pressures. (b) Why doesn't the concentration of Na2O appear in the equilibrium-constant expression?
Calculate the fraction of Asp that has a side chain protonated at pH 7.0 (aspartic acid side chain pka = 3.86)
0.4768 g of oxalic acid dihydrate (H2C2O4 • 2H2O) was weighed out and titrated with sodium hydroxide (NaOH) according to the procedure in the handout. Vi was recorded from the buret as 5.91 mL. Vf was recorded from the buret as 42.28 mL. Calculate..
How will that change in temperature affect the rate of diffusion of molecules within the cytoplasm of the muscle cells. Why.
Consider a hydrogen atom in the ground state. What is the energy of its electron? b. Consider a hydrogen atom in an excited state of
Why is it that F2gas chemistry cannot be done in normal laboratory glassware?
A current of 4.67 A is passed through a Sn(NO3)2 solution for 1.80 hours
When 67.7g of calcium and 30.5g of nitrogen undergo a reaction that has a 93.0% yield, what mass of calcium nitride forms
Through a valve, 7.0g of nitrogen gas is added to the bottle with balloon discussed in b). The temperature and external pressure are constant. Calculate the partial pressure of nitrogen.
The mass of the ice cube is 14.6 g, and its initial temperature is -13.1 °C. The water resulting from the melted ice reaches the temperature of your skin, 30.7 °C. How much heat is absorbed by the ice cube and resulting water
According to Raoult's law, which statement is false?
Activity of a cation (M+) is 0.0487 mol/liter. Calculate the concentration of the cation if y=0.84. Show work.
80.0 of is initially at room temperature (22.0). A chilled steel rod at 2.0 is placed in the water. If the final temperature of the system is 21.2, what is the mass of the steel bar
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