Which Solution Below Contains the Highest Total Quantity of Dissolved

question 66

Multiple Choice

Which solution below contains the highest total quantity of dissolved sodium ions?

• A)100.mL of 4.0 M NaCl
• B)75.0 mL of 3.0 M Na₂SO₄
• C)50.0 mL of 8.0 M NaOH
• D)50.0 mL of 2.0 M Na₃PO₄
• E)none of the above

---

Definitions:

Operating Leverage

A measure of how revenue growth translates into growth in operating income, indicating a company's fixed versus variable costs.

Variable Costs

Expenses that change in proportion to the level of production or sales, such as raw materials and labor costs.

Operating Leverage

Operating leverage describes the extent to which a company can increase profits by increasing sales, indicating the proportion of fixed costs to variable costs.

Break-Even Point

The level of output or sales at which a company does not make a profit or loss, but all costs are covered.