A Substance Has a Hydrogen Ion Concentration Of $\left[ \mathrm { H } ^ { + } \right] = 4.0 \times 10 ^ { - 3 }$

question 106

Essay

A substance has a hydrogen ion concentration of $\left[ \mathrm { H } ^ { + } \right] = 4.0 \times 10 ^ { - 3 }$
M. Find the pH of the substance.

---

Definitions:

Vasa Recta

A series of straight capillaries in the kidney that serve as counter-current exchangers, playing a key role in the concentration of urine.

Juxtaglomerular Apparatus

A structure in the kidney that helps regulate blood pressure by secreting renin in response to blood pressure changes.

Macula Densa Cells

Specialized cells located in the distal convoluted tubule of the kidney that help regulate blood pressure and filtration rate.

Juxtaglomerular Cells

Specialized cells in the kidney that help regulate blood pressure by secreting renin.