Sec. 1:Measuring Matter to the Max
Another word for 12
What is "dozen"
abbreviated Mol, is the SI base unit used to measure the amt. of a substance
What is The Mole?
The chemical Formula is CCl2F2
what is the Chemical formula for dichlorodifluoromethane?
percent by mass of each element in a compound
what is the Percent Composition?
a compound that has a specific number of water molecules bound to its atoms
What is a Hydrate?
6.0221367 X 10^23
602,213,670,000,000,000,000,000
What is Avogadro's Number?
The mass in grams of one mole of any pure substance
What is Molar Mass?
The relationship in size or quantity of two or more things
What is the definition of Proportion?
the formula with the smallest whole-number ratio of the elements
What is the Empirical Formula?
Di-
what is the prefix for 2?
6.02 X 1023 Rep. Particles/ 1 Mol
What is the Moles to Particles Equation?
6.02 X 1023 atoms of iron
What is included in a Mol of Iron?/another way to say 1 mol of iron?
The total mass of the reactants that reacted equals the mass of the compound formed
what is the law of conservation of mass?
specifies the actual number of atoms of each element in one molecule or formula unit of the substance
What is the molecular formula?
Deca-
What is the prefix for 10?
1 Mol / 6.02 X 1023 Rep. Particles
what is the formula for Particles to Moles?
This metalloid substance is used in automobiles for its beauty and corrosion resistance
Why is Chromium used in the auto industry?
covert given mass to moles by multiplying by the inverse of the molar mass
How do you convert mass to number of particles?
(mass of element) /(mass of compound) = Z x 100
What is the formula to find Percent By Mass?
a word for a compound without water
What is an anhydrous compound?
Calculate the number of Moles of Zinc that contain 4.50 X 1024 atoms
answer: 7.48 Mol Zinc
Mass, Moles, and Particles
what are the three conversions used in Sec. 2?
what is the mass of AlCl3?
answer: 35.6g
Determine the percent by mass of each element of the compound NaHCO3
answer: 23.3% Na, 1.200% H, 14.30% C, 57.14%O
What is the origin of the word Anhydrous?
Greek prefix An- meaning without, and -hydrous meaning water