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Calculate the concentrations of all species in a 0.100 M H3PO4 solution given the following Ka's: 7.5 X 10^-3 for H3PO4, 6.2 X 10^-8 for H2PO4-, and 4.8 X 10^-13 HPO4^2- Draw each of the structures.
How would you prepare 350mL of a single solution containing 150mM Tris, 5mM glucose, and 5 mM Nacl?
What is the molality of a solution in which 25 g of sodium chloride is dissolved in 2.0 kg of water
A 0.451 M solution of a weak acid, HA, has a pH of 4.01. Calculate Ka for the acid. Use E notation and 3 significant figures.
Determine the maximum number of electrons that can be found in each of the following subshells.
Specificy which ion you would add to the unkown and how the results would identify which compound is in the unknown.
Gastric juice is made up of substances secreted from parietal cells, chief cells, and mucous-secretig cells. The cells secrete HCl, proteolytic enzyme zymogens, mucin, and intrinsic factor. The pH of gastric juice is acidic, between 1-3.
Calculate the potential of the cell. Indicate whether the reaction will proceed spontaneously in the direction considered (oxidation on the left, reduction on the right) or an external voltage source is needed to force this reaction to occur
Calculate the pH at the equivalence point for the titration of 0.130 M methylamine (CH3NH2) with 0.130 M HCl. The Kb of methylamine is 5.0× 10-4.
calculate the amount of energy in kilojoules needed to change 135 of water ice at 10 to steam at 125 . .... how many
Assess the feasibility of the reaction: N2H4 (g) + 2OF2 (g) ® N2F4 (g) + 2H2O (g) by determining each of the following quantities of this reaction at 25 oC.
The Vehicle Assembly Building at the Kennedy Space Center in Florida has a volume of 3,666,500 m^3. Convert this volume to liters and express the result in standard exponential notation.
Discuss in detail the healthcare applications of chemical reactions. Which chemical reactions would you consider to be of importance to healthcare professionals? Why? In which situations are these chemical reactions useful to healthcare professiona..
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