The Action of Some Commercial Drain Cleaners Is Based on the Following

question 32

Multiple Choice

The action of some commercial drain cleaners is based on the following reaction: 2NaOH(s) + 2Al(s) + 6H₂O(l) → 2NaAl(OH) ₄(s) + 3H₂(g)
What is the volume of H₂ gas formed at STP when 6.32 g of Al reacts with excess NaOH?

• A) 3.50 L
• B) 5.25L
• C) 7.98 L
• D) 8.59L

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Definitions:

Nominal Data

A type of data that consists of names, labels, or categories without any implied order or ranking among them.

Technique

A specialized procedure or skill set used to accomplish a specific task effectively.

Nominal Data

A type of categorical data where categories are named labels without any intrinsic ordering.

Chi-squared Test

A nonparametric statistical test used to assess the association between categorical variables or to determine the goodness of fit between observed data and expected outcomes.