21 Calculate the mass percentage of benzene C6H and carbon

Last updated: 6/30/2023

21 Calculate the mass percentage of benzene C6H and carbon tetrachloride CCL if 22 g of benzene is dissolved in 122 g of carbon tetrachloride 22 Calculate the mole fraction of benzene in solution containing 30 by mass in carbon tetrachloride 2 3 Calculate the molarity of each of the following solutions a 30 g of Co NO3 2 6H O in 4 3 L of solution b 30 mL of 0 5 M H SO4 diluted to 500 mL 2 4 Calculate the mass of urea NH CONH required in making 2 5 kg of 0 25 molal aqueous solution 2 5 Calculate a molality b molarity and c mole fraction of KI if the density of 20 mass mass aqueous KI is 1 202 g mL