In an experiment, two unknown compounds (one an ether and the other an amine) of equal molecular mass were dissolved in water. the result of the experiment is shown in the table.
solubility comparison
unknown compound solubility (g/100 ml water)
a 4
b 0.25
which of the following correctly explains the identity of compound a and its solubility?
it is an amine; it contains a nitrogen atom that will allow nitrogen-hydrogen bonds to form while in water.
it is an ether; because the oxygen atom is within the carbon chain, so it is free to form oxy-hydrogen bonds to make it more soluble.
it is an ether; the high polarity of the oxygen-hydrogen bond makes it more soluble.
it is an amine; because the lower electronegativity of n than h makes it more soluble.

If 10.g of agno3 is available, what volume of 0.25 m agno3 can be prepared

Determine the percent sulfuric acid by mass of a 1.61 m aqueous solution of h2so4. %

You mix the pks of succinic acid are 4.21 and 5.64. how many gramsa graduate student at sdsu wants to measure the activity of a particular enzyme at ph 4.0. to buffer her reaction, she will use a buffer system based on one of the acids listed below, which acid is most appropriate for the experiment? of monosodium succinate (fw = 140 g/mol) and disodium succinate (fw = 162 g/mol) must be added to 1 l of water to produce a solution with a ph 5.28 and a total solute concentration of 100 mm? (assume the total volume remains 1 liter, answer in grams monosodium succinate, grams disodium succinate, respectively.) volumes of 0.05 m nah2po4 and 0.05 m na2hpo4 (pk's for phosphoric acid are 2.15, 6.82 and 12.38). which of the following best describes the resulting solution?