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What volume of 3M H2SO4 is needed to neutralize all of the disodium salicylate and the excess NaOH present after the initial reaction? How much sulfuric acid was in excess
Barium sulfate is used clinically to provide x-ray images of the digestive tract. How might barium sulfate be prepared in the laboratory from a double-displacement reaction of an ionic nitrate compound and sodium sulfate?
The vapour pressure of a solvent is the amount of gaseous molecules over an open vessel of the solvent. A 50/50 mixture of benzene and toluene has 46.7 Torr of benzene and 13.5 Torr of toluene at STP. What is the pressure of air over this mixture
small protein in 5.00mL aqueous solution has an osmotic pressure of 7.85 torr at 23.1C. What is the molar mass of the protein?
The sudden opening of the epiglottis and vocal cords releases this air explosively. Just prior to this release, what is the approximate pressure of the gas inside the lungs?
If a cell is in a resting state, which of the following is NOT true: a. cell needs little energy b. high ATP, low ADP levels
The conversion of glucose into lactic acid drives the phosphorylation of 2 moles of ADP to ATP and has a deltaG= -135 kJ/mol. What is the deltaG for the conversion of glucose into lactic acid
sunlight with a wavelength greater than 240nm. What is the energy available for the dissociation of molecular oxygen at 200nm?
If 4.00 g of the unknown compound contained 0.133 mol of C and 0.267 mol of H, how many moles of oxygen, O, were in the sample?
Calculate the concentration of the acid solution after all teh metal has reacted. Assume that the volume remains unchanged.
Choose one of the following atmospheric issues: air pollution, global warming, ozone depletion, and acid deposition. Then, respond to the following,
Draw the structure of any D-ketoheptose in the open chain form, and answer the following questions (you must use either Haworth projection or chair conformation in each of the points below)
Correlate the molar mass, molecular size, and bond polarity of these three gases with the molar volume of a perfect gas. O2, Co2, and H2
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