Chemistry; Tuesday, Period One [ 02/01 ].
"Alright, kiddies," Kūkaku started class without any particular pomp or procedure, as usual. "If ya haven't done so yet, pass yer homework forward and the twins'll come around and pick 'em up. And then we're gonna get right into today's topic, which is stoichiometry."
"Stoichiometry, simply put, is study of the relationships or ratios between two or more substances undergoing a physical or chemical change, without any leftover crap. Essentially, yeah, it's more balancing chemical equations; a stoichiometric amount or stoichiometric ratio is gonna leave you with a reaction where all reagent is consumed, there is no shortfall of reagent, and no residues remain."
And there was, of course, so much more to say about stoichiometry, which was now being babbled by their slightly foul-mouthed teacher as she scribbled notes up on the board with her singular hand. Including a nice simply example:
"How many moles of glucose are needed to produce 25 moles of ethanol, for example? Easy. C6H12O6 is glucose, right, and C2H5OH is ethanol, sooooo:
moles glucose = 25 moles ethanol (1 mole glucose / 2 moles ethanol) = 12.5 moles glucose
"So whenever you want to make 25 moles of ethanol, you will need 12.5 moles of glucose. But what the hell is a mole? We ain't talkin' spies or rodents here, we're talkin' weights. The conversion factor from moles to grams is called the formula weight. Ya get that from looking up the atomic weight for each atom in the formula and adding them all up."
Blah blah blah, so on and so forth. Kūkaku lead them through a few more examples of conversions and things like that, including why stoichiometry was so important, because otherwise, you wind up with extra crap, or your reaction doesn't work right, which is particularly important for things like acid and gunpowder.
"And now ya see why it's so near an' dear to my heart."
"Sometimes, practise with this sorta thing helps, so I've got a little practise quiz you can take if ya feel you need more work, but, essentially, what I want ya all to do today is partner up and work puttin' together safe compounds, perfectly balanced to not leave anything left over, allright? If ya want, ya can stick to just practising balancing the actual equations, but that's boring, and we've got the stuff, so give it a try by practising gram to mole conversions, and try to do so without sputtering plasma everywhere or blowin' up the school, yeah? Any questions?"
[[ ocd on the way is totally up! ]]
"Stoichiometry, simply put, is study of the relationships or ratios between two or more substances undergoing a physical or chemical change, without any leftover crap. Essentially, yeah, it's more balancing chemical equations; a stoichiometric amount or stoichiometric ratio is gonna leave you with a reaction where all reagent is consumed, there is no shortfall of reagent, and no residues remain."
And there was, of course, so much more to say about stoichiometry, which was now being babbled by their slightly foul-mouthed teacher as she scribbled notes up on the board with her singular hand. Including a nice simply example:
"How many moles of glucose are needed to produce 25 moles of ethanol, for example? Easy. C6H12O6 is glucose, right, and C2H5OH is ethanol, sooooo:
moles glucose = 25 moles ethanol (1 mole glucose / 2 moles ethanol) = 12.5 moles glucose
"So whenever you want to make 25 moles of ethanol, you will need 12.5 moles of glucose. But what the hell is a mole? We ain't talkin' spies or rodents here, we're talkin' weights. The conversion factor from moles to grams is called the formula weight. Ya get that from looking up the atomic weight for each atom in the formula and adding them all up."
Blah blah blah, so on and so forth. Kūkaku lead them through a few more examples of conversions and things like that, including why stoichiometry was so important, because otherwise, you wind up with extra crap, or your reaction doesn't work right, which is particularly important for things like acid and gunpowder.
"And now ya see why it's so near an' dear to my heart."
"Sometimes, practise with this sorta thing helps, so I've got a little practise quiz you can take if ya feel you need more work, but, essentially, what I want ya all to do today is partner up and work puttin' together safe compounds, perfectly balanced to not leave anything left over, allright? If ya want, ya can stick to just practising balancing the actual equations, but that's boring, and we've got the stuff, so give it a try by practising gram to mole conversions, and try to do so without sputtering plasma everywhere or blowin' up the school, yeah? Any questions?"
[[ ocd on the way is totally up! ]]