If the Density of an Unknown Gas Is 1

question 112

Multiple Choice

If the density of an unknown gas is 1.95 g/L at STP,what is the molar mass of the gas? (R = 0.0821 atm•L/mol•K)

• A)11.4 g/mol
• B)22.4 g/mol
• C)23.8 g/mol
• D)43.7 g/mol
• E)139 g/mol

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Definitions:

Cytokinesis

The process during cell division in which the cytoplasm of a single eukaryotic cell is divided into two daughter cells.

Meiosis I

The first meiotic division; consists of prophase I, metaphase I, anaphase I, and telophase I; see meiosis.

Meiosis II

The second meiotic division; follows interkinesis and consists of prophase II, metaphase II, anaphase II, and telophase II; see meiosis.

Interphase

The phase of the cell cycle during which the cell prepares for division by replicating its DNA and increasing in size.