In the Dilution of 10

question 18

Multiple Choice

In the dilution of 10.0 mL of a 0.10 M solution of HCl to a volume of 20.0 mL, what remains unchanged?

• A)the moles of HCl in the solution
• B)the concentration of the HCl solution
• C)the volume of the HCl solution
• D)the mass of the HCl solution
• E)All of the above change.

---

Definitions:

Autonomic Nervous System

The part of the nervous system that controls involuntary actions of the body, including heart rate, digestion, and respiratory rate.

Somatic Nervous System

Part of the peripheral nervous system that handles voluntary control of body movements via skeletal muscles.

Pupils

The circular openings in the center of the irises of the eyes, which regulate the amount of light that enters the eyes.

Thyroid Gland

An endocrine organ located in the neck, producing hormones that regulate metabolism and energy.