Molecules of O2 are produced each year by photosynthesis?

Question

If 1011 tons of carbon dioxide are fixed globally each year,approximately how many molecules of O2 are produced each year by photosynthesis? (Recall that 1 ton = 2000 lbs; 1 lb = 454 g.)

a) 10¹º molecules

b) 10^39 molecules

c) 10^32 molecules

d) 10^15 molecules

Answer 1

(1,011 T)(2,000 lb/T)(454 g/lb)(1 mol/44 g)(6.02214179e+23/mol) ≈ 1.26e+31

which is closest to your option c)