The number of grams in a given number of moles of a substance can be calculated by multiplying the number of moles by the molar mass of the substance. The molar mass of an element is the mass of one mole of atoms of that element in grams. The molar mass of potassium, K, is 39.10 g/mol.
To find the number of grams in 0.329 moles of potassium, we can use the following calculation:
mass = moles * molar mass
mass = 0.329 mol * 39.10 g/mol = 12.92 g
Therefore, there are 12.92 grams in 0.329 moles of potassium.