A Piece of Metal (Mass = 17

question 55

Multiple Choice

A piece of metal (mass = 17.268 g) is placed in 10.50 mL of chloroform (d = 1.498 g/mL) in a 25-mL graduated cylinder.The chloroform level increases to 15.46 mL.The best value for density of this metal from these data is

• A) 1.12 g/mL.
• B) 2.32 g/mL.
• C) 3.481 g/mL.
• D) 5.22 g/mL.
• E) 3.48 g/mL.

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Definitions:

Null Relationship

indicates a situation where no association is found between two variables being studied.

Internal Reliability

When all of the items on a questionnaire measure the same thing.

Questionnaire

A research instrument consisting of a series of questions or statements used to gather information from respondents.

Correlations

The statistical relationship between two variables.