QuestionApril 25, 2025

What is the mass in grams of 36.70 moles of KBr?

What is the mass in grams of 36.70 moles of KBr?
What is the mass in grams of 36.70 moles of KBr?

Solution
4.4(260 votes)

Answer

4367.3 grams Explanation 1. Calculate molar mass of KBr Potassium (K) has a molar mass of 39.10 g/mol, and Bromine (Br) has a molar mass of 79.90 g/mol. Add them: 39.10 + 79.90 = 119.00 g/mol. 2. Calculate mass using moles Use the formula: **mass = moles × molar mass**. Substitute values: 36.70 \text{ moles} \times 119.00 \text{ g/mol}.

Explanation

1. Calculate molar mass of KBr<br /> Potassium (K) has a molar mass of 39.10 g/mol, and Bromine (Br) has a molar mass of 79.90 g/mol. Add them: $39.10 + 79.90 = 119.00$ g/mol.<br />2. Calculate mass using moles<br /> Use the formula: **mass = moles × molar mass**. Substitute values: $36.70 \text{ moles} \times 119.00 \text{ g/mol}$.
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