Three Solutions Contain a Certain Acid

question 33

Multiple Choice

Three solutions contain a certain acid. The first contains 10% acid, the second 30%, and the third 50%. A chemist wishes to use all three solutions to obtain a 100-liter mixture containing 28% acid. If the chemist wants to use twice as much of the 50% solution as of the 30% solution, how many liters of each solution should be used?

• A)49 of 10% , 17 of 30% , 34 of 50%
• B)46 of 10% , 36 of 30% , 18 of 50%
• C)45 of 10% , 19 of 30% , 36 of 50%
• D)46 of 10% , 18 of 30% , 36 of 50%
• E)43 of 10% , 19 of 30% , 38 of 50%

Utilize strategies to emphasize ideas effectively in writing.

Understand the techniques for linking ideas effectively in writing.

Comprehend the importance of varying sentence and paragraph length for effective communication.

Recognize the differences between business and academic writing.

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Definitions:

Facial-Feedback Hypothesis

The theory that suggests the act of expressing a facial emotion can cause the emotional experience itself, such as smiling leading to feelings of happiness.

Positive Feelings

Emotions and sentiments that are pleasant or affirmative, such as happiness, joy, or satisfaction.

Simulating Anger

The act of pretending or mimicking the emotion of anger without actually feeling it, often for the purpose of study or understanding its effects.

Display Rules

Cultural norms that dictate how and when emotions should be expressed.