Benzene Boils at 80

question 77

Multiple Choice

Benzene boils at 80.10 ° C and has a molal boiling constant, k_b, of 2.53 C/m. When 2.15 g of a compound is dissolved in 20.0 g of benzene, the resulting solution has a boiling point of 81.10 ° C. What is the molar mass of the solute?

• A) 272 g/mol
• B) 108 g/mol
• C) 78 g/mol
• D) 2.15 g/mol
• E) 93 g/mol

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Definitions:

Alternative Hypotheses

In statistical testing, a statement suggesting that there is a difference or effect, as opposed to the null hypothesis.

P-Value

A statistical measure that helps scientists determine the significance of their research results, indicating the probability of obtaining the observed data if the null hypothesis were true.

Null Hypothesis

A basic assumption positing no meaningful difference or impact, usually examined in comparison with a different hypothesis.

Alternative Hypothesis

In statistical analysis, the hypothesis that proposes there is a significant difference between specified populations, distinct from the null hypothesis.