Part 1: which substance has a higher solubility? part 2: explain your answer for part 1. julia did an experiment to study the solubility of two substances. she poured 100 ml of water at 20 °c into each of two beakers labeled a and b. she put 50 g of substance a in the beaker labeled a and 50 g of substance b in the beaker labeled b. the solution in both beakers was stirred for 1 minute. the amount of substance left undissolved in the beakers was weighed. the experiment was repeated for different temperatures of water and the observations were recorded as shown. experimental observations substance mass of undissolved substance at different temperatures (gram) 20 °c 40 °c 60 °c 80 °c a 40 37 34 30 b 15 14 13 12

the way to get this answer would be to find the answer that has less undissolved mass because you have to find the one with higher solubility, which also means the one that can dissolve the most mass.

it has to be understood that the sea water contains a huge amount of sodium and chlorine ions and if they enter the cell of the atlantic cod fish, the cell will shrivel and the fish will die. to avoid such a condition, the fish uses active transport for the purpose of removing the ions against the gradient.

explanation:

the atlantic cod is not a maritime osmoconformer. its native application of salts is less than that of the seawater it lives in. it is continually falling water from the gills to the ocean via osmosis.

countering that, the fish is going to be swallowing seawater. but since its internal collection of salts is lower than seawater, the fish will want to go free of excess salt, and since that's going upon a gradient, then active transport, requiring energy, must be used to pump out the salt. much marine fish use the organs to filter out the salt and these fish discharge very straight urine.

bradykinin is a physiologically and pharmacologically active peptide of the kinin group of proteins, consisting of nine amino acids.