How Many Grams of H₂ Gas Gas Can Be Produced

question 142

Multiple Choice

How many grams of H₂ gas gas can be produced by the reaction of 27.0 grams of Al(s) with an excess of dilute hydrochloric acid in the reaction shown below?
2 Al(s) + 6 HCl(aq) → 2 AlCl₃(aq) + 3 H₂(g)

• A)1)34 g
• B)2)02 g
• C)3)03 g
• D)6)06 g

---

Definitions:

Matched Pairs

An experimental design technique where each subject is paired with a similar subject or with the same subject under different conditions.

Variability

The degree by which data points in a statistical distribution or dataset differ from each other and from the mean value.

Confidence

A measure of the reliability or certainty in statistical results, often expressed as a confidence interval or level.

Aptitude Tests

Assessments designed to measure a person's ability to acquire skills or knowledge, often used in educational and professional settings.