Question

A word problem tells you that you have 27.8 moles of carbon dioxide. It asks how

much that is in grams of carbon dioxide.
Luckily, they also supply a conversion factor.
1 mole of carbon dioxide is equal to 44 grams of carbon dioxide.
You set up a conversion equation in the format shown in the image.
What would you
write in the space labeled 'A' in the diagram.
44 grams of carbon dioxide
1 mole of carbon dioxide
27.8 moles of carbon dioxide

Answer 1

we need to cancel the units

b/c would be equal to 1 to retain the same amount, remember, 1a=a

so

b/c=1mol/44g or 44g/1mol

alrighty

we waant to convert 27.8mols

so therefor a=27.8mol

27.8mol times b/c=D

we want c to be mols and b to be grams so the mols cancel

so thefor c=1mol

it would look like this:

I would write 1 mol of carbon dioxide for C (choice A)