Sodium Chloride That Is Formed from a Reaction of Sodium

question 2

Multiple Choice

Sodium chloride that is formed from a reaction of sodium vapor and chlorine gas is found to be 39.34% sodium by mass. A 4.86 g sample of sodium chloride that is purified from sea water contains how many grams of sodium?

• A) 0.980 g
• B) 1.91 g
• C) 2.95 g
• D) 4.46 g
• E) there is no way to know because the compound is derived from a different source

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Definitions:

Efficient Frontier

A concept in modern portfolio theory that represents a set of optimal portfolios offering the highest expected return for a defined level of risk.

Standard Deviation

A statistical measure of the dispersion of returns for a given security or market index, often used to gauge the amount of variability or volatility of an investment.

Expected Return

The weighted average of all possible returns from an investment, considering the probabilities of each outcome.

Efficient Frontier

A concept in modern portfolio theory representing the set of optimal portfolios that offer the highest expected return for a defined level of risk or the lowest risk for a given level of expected return.