What Is the Mass Density of Argon Gas at Pressure

question 1

Multiple Choice

What is the mass density of argon gas at pressure 1.00 × 105 N/m² and at temperature 300 K? The mean atomic mass of argon is 39.948 g/mol and the ideal gas constant is R = 8.314 J/mol•K = 0.0821 L ∙ atm/mol ∙ K.

• A) 1.40 kg/m³
• B) 1.00 kg/m³
• C) 1.20 kg/m³
• D) 1.60 kg/m³
• E) 1.80 kg/m³

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Definitions:

Nephron Loops

The loop of Henle, a section of the nephron in the kidney that plays a crucial role in the concentration of urine and reabsorption of water and salts.

Cortical Radiate Arteries

Arteries that radiate outward from the arcuate arteries within the kidney's cortex, supplying blood to the nephrons.

Afferent Arterioles

Small blood vessels that carry blood to the nephrons in the kidney, playing a key role in regulating blood pressure and filtration.

Papillary Ducts

Channels in the kidneys through which urine flows from the collecting ducts to the renal pelvis.