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Definitions
Molar Mass
Percent Composition
Conversions
Miscellaneous
100
A unit that is a specified number of particles.
What is mole?
100
What is the molar mass of Carbon?
12g/mol
100
What is the formula of percent composition?
mass of element _________________ X 100% mass of compound
100
How many moles of carbon are in 26g of carbon?
2.2 mol
100
What state is Mrs. Maves from?
New York
200
The number of representative particles in a mole, 6.02x10^23.
What is Avogadro's Number?
200
What is the molar mass of N2O4?
92g/mol
200
What is the % composition of Copper in Cu2S?
79.8%
200
What is the mass in grams of 0.375 mol of NaCl?
21.9g
200
What color safety goggles can you use in class?
Pink, orange, and green
300
A temperature of 0 degrees celcius and a pressure of 101.3 kPa, or 1 atmosphere (atm).
What is standard temperature and pressure (STP)?
300
What is the molar mass of Na2S?
78.1g/mol
300
What is the % composition of S in Cu2S?
20.2%
300
How many atoms of Sulfur are in 4.00g of Sulfur?
7.50x10^22 atoms
300
How many elements are on the periodic table?
114 elements
400
The percent by mass of each element in the compound.
What is percent composition?
400
What is the molar mass of Ca(NO3)2?
164.1g/mol
400
What is the % composition of Iron in a sample that is 28g Fe and 8.0g O?
77.8%
400
What is the mass in grams 7.50x10^15 atoms of Ni?
7.4x10^-7
400
What is a mole short for?
It's not short for anything!!!
500
A formula with the lowest whole-number ratio of elements in a compound.
What is Empirical Formula?
500
What is the molar mass of (NH4)3PO4?
144g/mol
500
What is the % composition of Oxygen in a sample that is 28g Fe and 8.0g O?
22.2%
500
How many molecules of Sulfur Dioxide are in 7.0 grams of Sulfur Dioxide?
6.6x10^22 molecules
500
Who does Mrs.Maves have a poster of in the back of her room?
Albert Einstein