Question

The human body is 60% water. Water has a molar mass of 18.02 g/mol. If a

person weighs 75 kg (75,000 grams), how many moles of water would
that person contain? *

Answer 1

2497 moles

Step-by-step explanation:

human body = 75000 g

60% is H2O

so H2O = 0.60 x 75000 g =45000 g

molar mass of H2O =18.02

so

45000 g/18.02 g/mole = 2497 moles to correct sig fig