The Freezing Point of Seawater Is About -1 $\circ$ CIf Seawater Is an Aqueous Solution of Sodium Chloride,calculate the Seawater

question 4

Multiple Choice

The freezing point of seawater is about -1.85 ^$\circ$ C.If seawater is an aqueous solution of sodium chloride,calculate the molality of seawater.The k_f for water is 1.86 K/m.

• A)1.99 m
• B)0.995 m
• C)3.44 m
• D)3.70 m
• E)0.497 m

Understand the definition and characteristics of progressive, regressive, and proportional taxes.

Identify and describe the primary sources of federal revenue.

Differentiate between government purchases and transfer payments.

Calculate and interpret marginal and average tax rates.

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