Question

You have 6.56x10²² molecules of the vitamin C (384.7g/mol), what is the mass in grams? Show step by step work please

Answer 1

number of molecules of Vitamin C = 6.56x10^22 molecules

molar mass of Vitamin C = 384.7 g/mole

number of molecules of one mole of compound = Avagadro number of molecules

number of molecules of one mole of compound = 6.023x10^23

mass of one mole of compound = molar mass

mass of 6.023x10^23 molecules of Vitamin C = 384.7 grams

mass of 6.56x10^22 molecules of Vitamin C = ?

                                                                         = 384.7 x 6.56x10^22/6.023x10^23

                                                                         = 418.99 x10^-1

                                                                           = 41.899 grams

mass of Vitamin C = 41.90 grams.