Chem 1100 Chapter 3 Vocabulary - Mass, Formulas, and Reactions
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
|
|
||||
|---|---|---|---|---|---|
| isomers | compounds with the same molecular formula but different arrangements of the atoms in their molecules
🗑
|
||||
| reactant | a substance consumed during a chemical reaction
🗑
|
||||
| product | a substance formed during a chemical reaction
🗑
|
||||
| combination reaction | reaction in which 2 (or more) substances combine to form one product
🗑
|
||||
| mole (mol) | an amount of material (atoms, ions, or molecules) that contains Avogadro's number (NA = 6.022 X 10 ^23) of particles
🗑
|
||||
| Avogadro's number (NA) | the number of carbon atoms in exactly 12 grams of the carbon-12 isotope; NA = 6.022 X 10 ^ 23. it is the number of particles in 1 mole
🗑
|
||||
| Molar mass (M) | the mass of 1 mole o a substance. The molar mass of an element in grams per mole is numerically equal to that element's average atomic mass in atomic mass units
🗑
|
||||
| molecular mass | the mass of one molecule of a molecular compound
🗑
|
||||
| formula mass | the mass of one formula unit of an ionic compound
🗑
|
||||
| stoichiometry | the quantitative relation between reactants and products in a chemical reaction
🗑
|
||||
| law of conservation of mass | the principle that the sum of the mass of reactants in a chemical reaction is equal to the sum of masses of the products
🗑
|
||||
| combustion reaction | a heat-producing reaction between oxygen and another element or compound
🗑
|
||||
| percent composition | the composition of a compound expressed in terms of the percentage by mass of each element in the compound
🗑
|
||||
| mass spectrometer | an instrument that separates and counts ions according to the mass-to-charge ratios
🗑
|
||||
| molecule ion (M+) | the peak of highest mass in a mass spectrum; it has the same mass as the molecule from which it came
🗑
|
||||
| mass spectrum | a graph of the data from a mass spectrometer, where m/z ratios of the deflected particles with a particular mass
🗑
|
||||
| combustion analysis | a laboratory procedure for determining the composition of a substance by burning it completely in oxygen to produce known compounds whose masses are used to determine the composition of the original material
🗑
|
||||
| limiting reactant | a reactant that is consumed completely in a chemical reaction. The amount of product formed depends on the amount of the limiting reactant available
🗑
|
||||
| theoretical yield | the maximum amount of product possible in a chemical reaction for given quantities of reactant: also called stoichiometric yield
🗑
|
||||
| actual yield | the amount of product obtained from a chemical reaction, which is often less than the theoretical yield
🗑
|
||||
| percent yield | the ratio, expressed as a percentage, of the actual yield of a chemical reaction to the theoretical yield
🗑
|
Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Created by:
elizabethcosio
Popular Chemistry sets