Solution Number Solution Solution pH Acidic, Basic, or Neutral?

$1$ Urine $5\mathrm{.}25$ Acidic

$2$ Liver Bile $8\mathrm{.}60$ Basic

$3$ Skim Milk $6\mathrm{.}60$ Acidic

$4$ Tear Fluid $7\mathrm{.}00$ Neutral

$5$ Seawater $8\mathrm{.}00$ Basic

$6$ Blood Plasma $7\mathrm{.}40$ Basic

$7$ Stomach Acid $2\mathrm{.}50$ Acidic

Observations and Questions

$[2]$ Which biological solution in Data Table II is the most acidic? What information helped you to come to that decision? What can you explain about the chemical composition of the solution based on its pH $($i$.$e$.$ what does this tell us about the concentration of H$+$ ions in this solution$)?$