How Many Moles Are in a Sample of Ethylene Glycol

question 137

Multiple Choice

How many moles are in a sample of ethylene glycol (commonly found in antifreeze) , HOCH₂CH₂OH, that has a volume of 250.0 mL? The molar mass and density of ethylene glycol are 62.07 g/mol and 1.11 g/mL, respectively.

• A)4.47 mol
• B)0.276 mol
• C)3.63 mol
• D)1.40 × 10⁴ mol
• E)1.72 × 10⁴ mol

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Definitions:

Beta Coefficient

A measure of a stock's volatility or risk relative to the overall market.

Market Risk Premium

The extra return expected by investors for holding a risky market portfolio instead of risk-free securities.

Risk-free Interest Rate

The theoretical return on investment with zero risk of financial loss, typically associated with government bonds.

Total Risk

The sum of all risks affecting an investment, including both systematic (market) and unsystematic (individual) risks.