Part a what is the concentration of k+ in 0.15 m of k2s? express your answer to one decimal place and include the appropriate units. 0.3 m submithintsmy answersgive upreview part correct part b if cacl2 is dissolved in water, what can be said about the concentration of the ca2+ ion? if is dissolved in water, what can be said about the concentration of the ion? it has the same concentration as the clâ’ ion. its concentration is half that of the clâ’ ion. its concentration is twice that of the clâ’ ion. its concentration is one-third that of the clâ’ ion. submithintsmy answersgive upreview part correct part c a scientist wants to make a solution of tribasic sodium phosphate, na3po4, for a laboratory experiment. how many grams of na3po4 will be needed to produce 650. ml of a solution that has a concentration of na+ ions of 1.30 m ?

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.