Question

3 how many grams in 5.5 mol of copper? (nearest whole number; no units)

Explanation:

Step1: Recall molar mass of copper

The molar mass of copper (Cu) is approximately 63.55 g/mol.

Step2: Calculate mass using moles and molar mass

The formula to calculate mass (m) from moles (n) and molar mass (M) is \( m = n\times M \).
Given \( n = 5.5 \) mol and \( M = 63.55 \) g/mol, we substitute these values into the formula:
\( m = 5.5\times63.55 \)
\( m = 349.525 \)

Step3: Round to nearest whole number

Rounding 349.525 to the nearest whole number gives 350.

Answer:

350