A Gas Cylinder Contains Three Gases

question 13

Short Answer

A gas cylinder contains three gases:
oxygen, nitrogen, and helium. The partial pressure of oxygen is 4.7 psi and the partial pressure of nitrogen is 3.0 psi. If the reading on the pressure gauge is as shown below. What is the partial pressure of the He?

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Definitions:

Adenohypophysis

Portion of the hypophysis derived from the oral ectoderm; also called anterior pituitary.

Parathyroid Glands

The parathyroid glands are small endocrine glands in the neck that produce parathyroid hormone, which regulates calcium levels in the blood.

Somitomeres

Early segmented structures in embryonic development that give rise to somites, precursors to skeletal muscle, vertebrae, and dermis.

Neural Crest Cells

Embryonic cells originating at the border of the neural tube that migrate and differentiate into a diverse range of cell types, including some types of neurons, glial cells, and melanocytes.