The Normal Freezing Point of Benzene (C₆H₆, 78 $\degree$ C, and Its K_f Value Is 5

question 107

Multiple Choice

The normal freezing point of benzene (C₆H₆, 78.12 g/mol) is 5.49 $\degree$ C, and its K_f value is 5.12 $\degree$ C/m.To create a solution with a freezing point of 0.00 $\degree$ C, how many grams of naphthalene (C₁₀H₈, 128.2 g/mol) would need to be dissolved in 640.0 g of benzene?

• A)5.63 g
• B)137 g
• C)82.0 g
• D)187 g
• E)88.0 g

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Definitions:

Indirect Method

A method used in cash flow statement preparation that adjusts net income for non-cash transactions, deferrals, and accruals.

Accumulated Depreciation

The total amount of depreciation expense that has been recorded against an asset since it was put into use, reducing its book value.

Investing Activity

Financial transactions related to the acquisition or disposal of long-term assets and investments, reflected in a company's cash flow statement.

Indirect Method

A method used in cash flow statements to adjust net income for non-cash transactions and changes in working capital to calculate net cash provided by operating activities.