How many moles are in 36 gof Be? 0.25 mol 320 mol 45J.mol 2.2times 10^wedge 25mol 4.0 mol

To determine the number of moles in 36 grams of beryllium (Be), we need to use the molar mass of beryllium.The molar mass of beryllium is 9.0122 g/mol.To calculate the number of moles, we can use the formula:Number of moles = Mass (g) / Molar mass (g/mol)Plugging in the values:Number of moles = 36 g / 9.0122 g/molNumber of moles = 4.0 molTherefore, the correct answer is 4.0 mol.