Question

1. how many grams of tin are found in 3.50 moles of tin?

Explanation:

Step1: Get molar mass of tin

Molar mass of Sn = $118.71\ \text{g/mol}$

Step2: Calculate mass from moles

$\text{Mass} = \text{Moles} \times \text{Molar Mass}$
$\text{Mass} = 3.50\ \text{mol} \times 118.71\ \text{g/mol}$

Answer:

$415.485\ \text{grams}$ (rounded to 415 grams or 415.5 grams for reasonable precision)