Green plants take in water and carbon dioxide and produce glucose and oxygen gas. Calculate the molar masses of carbon dioxide, glucose, and oxygen gas.

Question

Green plants take in water (H₂O) and carbon dioxide (CO₂) and produce glucose (C₆H₁₂O₆) and oxygen gas (O₂). Calculate the molar masses of carbon dioxide, glucose, and oxygen gas.

I really only need help with the carbon dioxide part of the problem. So any help would be amazing.

Answer 1

Molar mass od CO₂ = molar mass of C + 2 X molar mass of O

= 12.0107 + 2 X 15.9994 = 44.0095 g

Mike

Answer 2

To calculate molar mass of a substance, simply look in the periodic table for each of the elements making up the compound, and multiply the atomic mass by the number of atoms of the element. So, for carbon dioxide, CO₂, you have 1 carbon (C), and 2 oxygens (O).

C = 12.01 x 1 = 12.01

O = 15.99... x 2 = 31.98

Add them up : 12.01 + 31.98 = 43.99 = 44 g/mol molar mass CO₂