Below Is a Diagram Representing a Solvent A(l)in a 1-L

question 59

Multiple Choice

Below is a diagram representing a solvent A(l) in a 1-L beaker,and a solute X dissolved in the solvent.Solvent A has a density of 0.8 g/mL,and a molar mass of 40 g/mol. Solute X has a molar mass of 30 g/mol.Each circle of X represents 1 mol of X.Assume that the solute addition does not significantly change the volume of liquid in the beaker. What is the mass percent of solute X in this solution?

• A)0.4%
• B)3%
• C)12%
• D)13%
• E)20%

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Definitions:

Experimental Group

In an experiment, the group exposed to the treatment, that is, to one version of the independent variable.

Control Group

In experimental research, it refers to the group of participants who do not receive the experimental treatment, serving as a comparison to evaluate the effect of the treatment.

Cause-Effect Relationships

The principle that an action or event will produce a certain response in the form of another event.

Experiment

A scientific procedure undertaken to test a hypothesis, determine causality, or uncover specific effects under controlled conditions.