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HSO4- is a weak acid with pka value of 1.82, what percentage of HSO4- is dissociated in 2M solution? Why does molarity approximate molality at low concentrations?
Physical propoerties and intermolecular forces, What type of intermolecular forces accounts for the following differences in each case?
How many moles of potassium carbonate will be produced if 476 g of potassium hydrogen carbonate are heated
The lab was a "Two-Base Extraction" A mixture of benzoic acid, 2-naphthol, and naphthalene was extracted with sodium bicarbonate and followed by sodium hydroxide.
The half life of Iodine-131 is 8.0252 days. If 14.2 grams of I-131 is released in Japan and takes 31.8 days to travel across the Pacific
210 mg Ca(OH)2 and 210 Al(OH)3. A 8.3×10^-2 M HCl, which is similar to stomach acid, is used to neutralize 5.0mL of liquid antacid. How many mililiters of HCl solution are needed to neutralize Ca(OH)2, then Al(OH)3?
A cumbustion analysis was carried out on 1.621g of newly synthesize compound which was known to contain only carbon,hydrogen and oxygen.
They are all buffer solutions and would all have the same capacity 2) Of the following solutions, which has the greatest buffering capacity?
After 273 m3 of ethylene oxide at 748 kPa and 525 K is cooled to 293 K, it is allowed to expand to 1.10 × 103 m3. What is the new pressure?
A student prepared the Ni^2+ standar solution and obtained the following buret readings for solution #2, Calculate the concentration of Ni^2+ in the resulting solution.
Assume that fructose is a molecular solid and does not ionize when it dissolves in water.
Does that indicate the original alcohol is in that mixture? What is the source of 2-bromopentane?
Determination of the composition of a mixture You will be given a multi-component mixture and will be required to determine (and confirm) the %composition of the mixture, obtain a sample of each component and to verify its purity and identity.
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