Glucose c6h12o6 is used as an energy source by the human...

Glucose, C6H12O6, is used as an energy source by the human body. The overall reaction in the body is described by the equation C6H12O6(aq)+6O2(g)⟶6CO2(g)+6H2O(l) Calculate the number of grams of oxygen required to convert 63.0 g of glucose to CO2 and H2O. Mass of O2: g Calculate the number of grams of CO2 produced. Mass of CO2: g

Transcript

00:01 So for the first part of this question, we're asked to figure out how many grams of oxygen we need to convert 63 grams of glucose into carbon dioxide and water.

00:12 So first we're going to figure out how many moles of carbon dioxide are produced if 63 grams of glucose are completely reacted.

00:27 So first, we're going to convert this grams into moles, right? because we can only compare compounds to compounds within a reaction through moles.

00:36 The way to convert grams to moles is by taking it times its molar mass.

00:41 So we have 63 grams of glucose.

00:47 We take it times its molar mass, which is 180 .16 grams per mole.

00:52 So for every one mole of glucose, we have 180 .16.

01:03 Grams, grams cancel out, leaving us with moles of glucose.

01:08 Then we can use the coefficients in the ratio to determine how many moles of co2 would be produced if we had this many moles of glucose.

01:18 So if we look, we have six moles of carbon dioxide for every one mole of glucose.

01:23 So six moles of co2 for every one mole of glucose.

01:32 Moles of glucose on top.

01:33 Cancel out with moles of glucose on bottom.

01:36 Then in your calculator, use 63 divided by 180 .16 times 6.

01:45 Means that if we have 63 grams of glucose, it will produce 2 .098, which will for around it, it'll be 2 .10 moles of co2.