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Terms in this set (30)
1.) According to our first section of notes, how many quantities are we going to relate in this unit?
five
2.) Of the above quantities which are reflected equally on both sides of the equation?
atoms and mass
3.) What kind of representative particle would O2 be?
diatomic molecule
4.) If I have O2, how many molecules do i have?
one
5.) If I have 2H2O how many molecules do I have?
two
6.) If I have 2CO2, how many moles do I have?
two
7.) Is it possible to have more molecules of reactant than product?
yes
8.) If I have 1 mol of N2 how many representative particles do I have?
6.02 x 10 ^23
9.) Why would 3 H's bond to one N ?
reaching a noble gas configuration
10.) In order for Stoichiometry to really work we must always begin with a ?
balanced equation
1.) Very simply put some line method problems require more than 1?
conversion factor
2.) The conversion factor is simply a (found within the balanced equation) ?
ratio
3.) In section 2 what ratio is tremendously important to us?
molar ratio
4.) If I have N2 +3H2 = 2NH3. How many conversion factors exist if I simply consider the Mole ratio/s (for this equation only).
three
5.) If I was wishing to create a ratio illustrating how many representative particles there are in a mole then I would simply have a fraction with say 1mol of x / what?
6.02 x 10^23
6.) Convert (according to our notes) literally means?
one to another
7.) Obviously, when I convert my numerical value is either going to get ________ or _________. But in reality it is still the same quantity (just stated in a different way).
bigger or smaller
8.) How many conversion factors can you use at a time?
as many as you need
9.) One more time, remember Stoichiometry operates on the fact that you are beginning with a ?
balanced chemical equation
10.) If I have 2 reactants and only 1 product and I only know 1 original reactant mass, can I solve for the mass of the product?
yes
1.) In this unit it should be very apparent by now that in these problems I am very swiftly going to convert to what common item/unit?
moles
2.) In order to make the conversion in number 1 happen (from "given" to "wanted") I need to know? (slide 10,11,12 section 2)
the molar ratio
3.) Key statement page 394 (slide 21) tells me that I first convert to?
moles
4.) 2SO2 + O2 = 2SO3. What is the mole ratio of O2 to SO3? write this as values with a : in between them.
1:2
5.) In the notes in problem 1 we are simply calculating the ____ of NH3 ? (we can do this because we know the mass of a reactant and we understand ratios)
mass
6.) In problem 2 we use the same principle of ratios and calculate the number of _________ of a product.
molecules
7.)In problem 3 we are simply calculating the ___________ of the product.
volume
8.) Remember section 2 slide 14 told us that we could perform calculations for _________ different measurements.
5
9.) Remember slide 1 section one explained that Stoichiometry is all about calculating ____________ in chemical reactions.
quantities
10.) And obviously, we have hammered on the fact that this all works if we start with a __________ chemical equation.
balanced
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