The formula for calculating weight % nitrogen in 0.16 mol ATP is (mass of nitrogen in 0.16 mol ATP / mass of 0.16 mol ATP) x 100%.
The mass of nitrogen in 0.16 mol ATP can be found by multiplying the number of moles of nitrogen (0.16 mol) by its molar mass (14.01 g/mol).
The molar mass of ATP (adenosine triphosphate) is approximately 507.18 g/mol.
The mass of 0.16 mol ATP can be calculated by multiplying its number of moles (0.16 mol) by its molar mass (507.18 g/mol), which results in a mass of approximately 81.15 g.
To convert weight % nitrogen to grams, you can use the formula (mass of 0.16 mol ATP x weight % nitrogen) / 100%. This will give you the mass of nitrogen in grams present in 0.16 mol ATP.