When 100 ml of 1.0 m na3po4 is mixed with 100 ml of 1.0 m agno3, a yellow precipitate forms and [ag ] becomes negligibly small. which of the following is a correct listing of the ions remaining in solution in order of increasing concentration?
a. po43- < no3- < na+
b. po43- < na+ < no3-
c. no3- < po43- < na+
d. na+ < no3- < po43-
e. na+ < po43- < no3-

In which [Ag+] in negligibly small and the concentration of each reactant is 1.0 M

The answer is A)  PO43- < NO3- < Na+

Explanation:

Ag+ is removed from the solution just like PO43-, so there are just 2 possible answers at this point: a or b. Then we can notice that Na3PO4 releases 3 moles of Na+ and just 1 mole of NO3-

We have 100mL of each reactant with the same concentration for both (1.0 M) so:

(0.1)(1)(3)= 0.3 mol Na+

(0.1)(1)= 0.1 mol NO3-

so PO43- < NO3- < Na+

chemical digestion occurs in the stomach were hcl and pepsin forms chyme, the mouth in which salivary amylase breaks down starch to form bolus, and the small intestine specifically the duodenum.

c. is the answer

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