Counting by Weighing
How many corks would there be in 500. g if 1 cork weights 1.63g.
306 corks
What is the number of atoms that represents the mole?
6.022 x 1023 (Avogadro's Number)
How can you calculate the molar mass of a compound?
multiply the atomic weights by the amount of atoms, and then add all atomic weights together
What is usually the number of a total percentage amount?
100%
What is the empirical formula of C3H6?
CH2
What is Soulja Boy's issue and what is his solution??
Baby, you know that I miss you, I wanna get with you tonight
But I cannot, baby girl, and that's the issue
Girl, you know I miss you, I just wanna kiss you
But I can't right now
So, baby, kiss me through the phone (kiss me through the phone)
I'll see you later on (later on)
Kiss me through the phone (kiss me through the phone)
See you when I get home (when I get home)
If one jelly bean is 5g, how many grams would 46 jelly beans weigh?
230 g
Which weighs more in grams, 0.5 mol of oxygen atoms, or 4 mol of hydrogen atoms?
0.5 mol of oxygen = 8 g of oxygen
Find the molar mass for the following compound:
CH4
16.05 g/mol
What percent of Magnesium is present in the compound Mg(NO3)2 ?
16.40% Mg
What is the empirical formula of C4O12
CO3
What did Usher confess?
I got a chick on the side with the crib and a ride
I've been telling you so many lies
Ain't none good, it's all bad
And I just wanna confess
If 5 Skittles weigh 3.8g, how many Skittles are in a bag with a net weight of 15.6g?
20 skittles
How many moles are present in 86.2 grams of sodium?
3.75 mol Na
calculate the molar mass for the following compound:
chlorine dioxide (ClO2)
67.45 g/mol
What percent of Calcium is present in calcium phosphate, Ca3(PO4)2?
38.765% Ca
What is the empirical formula for a compound that contains the following 74.02 g C, 8.710 g H, 17.27 g N.
C5H7N
In Destiny Child's "Say My Name", why did she want him to say her name so badly??
You actin' kinda shady
Ain't callin' me baby
Why the sudden change
Say my name, say my name🎵
The weight of an empty box is 213 g and the weight of a box plus a bunch of big nails is 1340 g. The weight of one big nail is 0.450 g, how many big nails are in the box?
2504 big nails
how much mass, in grams, are present in 125 mol of lithium?
867.5 g Li
calculate the molar mass of the following compound:
ethanol (C2H5OH)
46.08 g/mol
Calculate the percent mass for each element in carbon dioxide (CO2)
Round to 2 decimal places.
C= 27.29%
O=72.71%
Determine the empirical AND molecular formula from the percentages by weight and the molecular weight. 58.84% Ba, 13.74% S, and 27.43% O. The molecular formula is between 465-470 g/mol.
EF: BaSO4
MF: Ba2S2O8
Where did T-Pain claim to put someone in a mansion??
"Put you in the mansion, somewhere in Wisconsin (Wisconsin)"
The mass of an empty jar is 450. g The mass of the filled jar is 1175g. If 5 Skittles weigh 3.2g, how many Skittles are in the jar?
1132 skittles
how much mass, in grams, are in 0.45 mol of Barium?
61.8 g Ba
calculate the molar mass of the following compound:
caffeine (C8H10N4O2)
194.22 g/mol
Calculate the percent mass for each element in ammonium fluoride (round to 2 decimal places)
N=37.81%
H=10.90%
F=51.28%
NH4F
Determine the empirical AND molecular formula from the percentages by weight and the molecular weight. 15.77% Al, 28.11% S, and 56.12% O with a molecular weight between 683-688 g/mol.
EF: Al2S3O12
MF: Al4S6O24
What was Nelly and Kelly's "Dilemma"??
No matter what I do
All I think about is you
Even when I'm with my boo
Boy, you know I'm crazy over you
...
I met this chick and she just moved right up the block from me
And uh, she got the hots for me
The finest thing my hood has seen