00:01
Okay, so here, glucose is used as an energy source by the human body, and we have the following equation.
00:10
C6h12 .06 plus 602 goes to 6 co2 and 6h2.
00:21
I want to calculate the number of grams of oxygen required to convert 58 .0 grams of glucose into co2 and h2.
00:34
So first we need to relate this many grams of glucose into grams of oxygen.
00:39
So what we need to do is convert grams of glucose into moles, then use the molar ratios in the balanced equation to convert from moles of glucose into moles of oxygen, and then we can convert to grams of oxygen using the molar matter.
00:54
So first we need the molar mass of glucose, which is 1 mole is equivalent to 180, 0 .16 grams.
01:07
Then we can use the molar ratio in the equation because one mole of glucose is equivalent to 6 moles of oxygen and then lastly we can use the molar mass of oxygen to convert this back into grams.
01:24
So one mole is equivalent to 32 grams.
01:28
So this is going to be 58 divided by 180 .16 times 6 times 32, which is equal to 61 .8 grams of oxygen...