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Problem- A 200mL sample of 0.350M acetic acid (CH3CO2H) was allowed to react with 2.000L of gaseous ammonia at 25C and a pressure of 650.8mmHg. Assuming no change in the volume of the solution, calculate the pH and the equilibrium concentrations of all species present (Ch3CO2H, CH3CO2-, NH3, NH4+, H2O+, and OH-). Values of equilibrium constants can be looked up.
I want you to explicate the chemistry in this problem
How much heat in kilojoules is required to warm 10.0 g of ice, initially at -10.0^\circ C, to steam at 110^\circ C. The heat capacity of ice is 2.09 {\rm J}/{\rm g} ^\circ {\rm C} and that of steam is 1.84 {\rm J}/{\rm g} ^\circ {\rm C}. q=?kJ
how to predict whether a precipitate reaction will occur when aqueous solutions of PbCl2 and (NH4)2S are mixed.
Because electron transport is coupled to ADP phosphorylation, it is theoretically possible to drive electrons backwards up the chain, against the potential gradient, at the expense of ATP.
Explain why it is important that the glassware and reagents used in a Grignard reaction are completely dry. Write an equation that describes what happens if phenylmagnesium bromide reacts with water.
Compute the frequency in hertz of the photon that is emitted when an electron falls from level n=10 to level n=5 in the H atom.
What is the molarity of the concentration HCl (concentrated HCl is 37.2% by mass). How did you find this value? Using the molarity show that 7ml of concentrated HCl diluted to 2.0L with distilled water yields a solution that is about 0.10M HCl.
Problem- i. Comment on the stereoselectivity of the bromination of E-stilbene (assign stereochemistry of dibromo product, why selective?, is this molecule chiral?) Comment on the regioselectivity of the bromination of acetanilide (assign regiochem..
The student is presumed to observe the bacterium and make a drawing. Though, the student, having just learned about the Heisenberg uncertainty principle in physics class, criticizes that she cannot make the drawing. Claims that the uncertainty of ..
calculate the freezing point of a solution made by dissolving 3.50 g of potassium chloride 74.55 gmol in 100.0 g of
What is the pH of a solution formed after titrating 25 mL of 0.150 M acetic acid with 15.0 mL of 0.150 M sodium hydroxide? Ka(acetic acid)=1.76x10-5
air is about 78.0 nitrogen moleculesand 21.0 oxygen molecules. several other gases make up there maining 1 of air
an average concentration of dissolved gold of 5.8*10^?9 g/L. (a) How many grams of gold are in the ocean? (b) How many m^3 of gold are in the ocean?
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