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Why are boiling chips added to the round bottom flasks of both simple and fractional distillations? Explain in detail the ramifications (cause and effect) of not adding boiling chips to your flask before performing a distillation.
Calculate the vapor pressure of water above a solution prepared by adding 24.5g of lactose (C12H22O11) to 200.0 g of water at 338 K. (Vapor-pressure of water at 338 K 187.5 torr
What is the pH resulting from mixing 50.0 mL of 0.0100 M H2CO3 with 1.50 mL of 0.100 M NaOH?
Compute ΔU for the transformation; a = 0.136 m6Pa mol-2 ; b = 0.0391 L/mol.
If the electron affinity for an element is a negative number, does it mean that the anion of the element is more stable than the neutral atom. explain
Draw line-bond structures for C3H6O, include all the constitutional isomers (except those with carbon-carbon double or triple bonds.) for each constitutional isomers
How would I do this? A lactic acid/lactate ion buffer solution contains .22 M HC3H5O3 and .80 M C3H5O3- , respectively. The Ka value of lactic acid is 1.4 x 10^-4. calculate the pH of this buffer
a 251 ml sample of oxygen is collected over water at 25 deg c and 760 torr pressure. if the vapor pressure of water as
25.0 mL of a calcium chloride solution is added to an excess of aqueous silver nitrate. The resulting precipitate has a mass of 1.25 grams. If the percent yield of this reaction is known to be 85%, calculate the concentration in molarity of the or..
If Cori Cycle were to occur and remain with in one cell- what are the specific number of ATP generated and used in different parts of cycle
Suppose you have two solutions to titrate with NaOH: (a) 10mL of 0.1 M HCl and (b) 10 mL of 0.1 M CH3COOH.
Indicate the kind of hybridization (sp, sp2, sp3) you expect for each carbon atom in the following molecule. Why does each carbon atom have that hybridization?
A Zeolite Softener was completely exhausted by passing 20,000 litres of water sample through it. If the Zeolite requires 150 litres of 5.5% NaCl solution for complete regeneration, calculate the hardness of the water sample.
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