# Shared Flashcard Set

## Details

CHM 1020 Final
Just need a minimum of 60%
50
Chemistry
07/26/2011

## Additional Chemistry Flashcards

Term
 What is the value of a mole (mol)?
Definition
 6.022 x 10^23
Term
 Who was the mole named after?
Definition
Term
 What is the atomic mass unit?
Definition
 1/12 of the mass of carbon-12
Term
 What is molar mass?
Definition
 The mass of 1 mol of atoms of an element
Term
 Covert from moles to grams by:
Definition
 Multiply # moles by # molar mass
Term
 Convert from grams to moles by:
Definition
 Divide # grams by # molar mass
Term
 Convert grams to # of atoms by:
Definition
 Divide # grams by molar mass then multiply by 6.022 x 10^23
Term
 Convert from molecules to grams by:
Definition
 Divide # molecules by 1 mol, then multiply by molar mass
Term
 Convert grams of compound to grams of element by:
Definition
 Divide by total mass and multiply by mass of target element
Term
 Mass percent composition
Definition
 Element's percentage of the total mass of compound
Term
 Calculate mass percent by:
Definition
 Divide target element by total compound in grams
Term
 Convert grams of element to grams of compound by:
Definition
 Multiply initial element (g) by 100/(percentage)
Term
 Calculate empirical formula by:
Definition
 Divide experimental mass of each element by molar mass of that element
Term
 Calculate empirical formula from reaction data by:
Definition
 Subtracting given element mass from total compound mass
Term
 n = ?
Definition
 Molar mass(usually bigger number) / empirical formula molar mass
Term
 Compounds containing what are soluble?
Definition
 Li, Na, K, NH4, NO3, C2H3O2
Term
 Compounds that may be soluble (Cl, Br, I)
Definition
 Cannot contain Ag, Hg2, Pb
Term
 Compounds that may be soluble (SO4)
Definition
 Cannot contain Sr, Ba, Pb, Ca
Term
 Slightly soluble if:
Definition
 Contains OH; but not Li, Na, K, NH4; but does have Ca, Sr, Ba
Term
 What is a molecular equation?
Definition
 Shows complete, neutral formulas for every compound in a reaction
Term
 What is a complete ionic equation?
Definition
 Shows all of the species as they are actually present in the solution
Term
 What is a net ionic equation?
Definition
 Shows only the species that actually participate in the reaction
Term
 What are the characteristics of oxidation-reduction reactions?
Definition
 Involve transfer of electrons
Term
 What does OIL RIG stand for?
Definition
 Oxidation is loss, reduction is gain
Term
 What is the law of constant composition?
Definition
 All samples of a given compound have the same proportions of their corresponding elements.
Term
 NH4
Definition
 Ammonium
Term
 C2H3O2
Definition
 Acetate
Term
 Mg(NO3)2?
Definition
 Magnesium nitrate
Term
 What is an empirical formula?
Definition
 It gives the relative number of atoms of each element in a compound.
Term
 Atomic elements are:
Definition
 Single atoms of an element
Term
 Molecular elements are:
Definition
 (Usually) doubled atoms of an element
Term
 Molecular compounds are:
Definition
 Compounds formed from two or more nonmetals. (H2O)
Term
 Ionic compounds are:
Definition
 Compounds that contain one or more cations paired with one or more anions. (NaCl)
Term
 Cation is:
Definition
 Positively charged ions
Term
 Anions are:
Definition
 Negatively charged ions
Term
 What is an ion?
Definition
 It makes up the electric charge of an atom.
Term
 You can assume a compound is ionic when:
Definition
 You have a metal and one or more nonmetals together in a chemical formula
Term
 What is a Type I metal?
Definition
 It does have a charge that varies from one compound to another
Term
 What is a Type II metal?
Definition
 It has a charge that differs in different compounds
Term
 Binary compounds are:
Definition
 Those that contain only two different elements and end with -ide
Term
 SO3
Definition
 Sulfite
Term
 SO4
Definition
 Sulfate
Term
 CO3
Definition
 Carbonate
Term
 NO3
Definition
 Nitrate
Term
 NO2
Definition
 Nitrite
Term
 HCl
Definition
 Hydrochloric acid
Term
 KOH
Definition
 Potassium hydroxide
Term
 HNO3
Definition
 Nitric acid
Term
 NaOH
Definition
 Sodium hydroxide
Term
 NaNO3
Definition
 Sodium nitrate
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