In the Reaction 3Cu(s) + 8HNO₃(aq) → 3Cu(NO₃)₂(aq) + 4H₂O(l) + 2NO(g)

question 92

Multiple Choice

In the reaction
3Cu(s) + 8HNO₃(aq) → 3Cu(NO₃) ₂(aq) + 4H₂O(l) + 2NO(g)
6) 3 g of Cu and 100.0 mL of 1.0 M HNO₃ are combined. Which of the following statements is true?

• A) Cu and HNO₃ react in a 1:1 mole ratio.
• B) Cu is the limiting reagent, and 0.062 mol HNO₃ does not react.
• C) 0.080 mol H₂O is produced
• D) HNO₃ is the limiting reagent, and 0.062 mol Cu does not react.
• E) Cu and HNO₃ are present in stoichiometric amounts; neither is in excess.

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Definitions:

Reliability

The consistency and dependability of a measure or test over time, ensuring that similar results are achieved under consistent conditions.

Standard Deviation

A statistical measure of the dispersion or variation in a set of values, indicating how much individual data points differ from the mean value.

Construct Validity

The extent to which a test measures what it claims to measure, representing the accuracy of the construct being assessed.

Standardize

The process of making something conform to a standard, often to ensure consistency and comparability between different instances or measures.