Normality Flashcards
When working with molar concentrations, more often than not our volumes are not in liters. Because we may be working with very tiny quantities, we will often express them as _______or _______to express thousandths of a mole.
mmoles;
millimoles
1 mole = ____ mmoles or _____ mmol
1000;
1000
_______ expresses the concentration of true molecules that don’t associate in a solution. The molecules that aren’t true, are considered “________” and are usually acid, base, or salt.
Molarity (M);
reactive
________ is used to express the concentration of the “__________” in compounds.
Normality (N);
reactive units
Acids, bases, and salts are considered reactive because they ________ in water (or _______).
dissociate;
ionize
Dissociation is based on the ________ number.
valence
When looking at the periodic table, column 1A has room for ____ more electron in their outer shell. Elements in this column are written with a (__) charge because there is one more proton than electron.
1;
(+) positive
When looking at the periodic table, elements in column 2A have room for ____electrons in their outer shell. They have a charge of ______
2;
2+
When looking at the periodic table, the left side are elements with a ______ net charge. Starting with column ____ in column 7A and increasing as we move inward.
(-) negative;
-1
Normality is based specifically on the ______.
cations
we express normality in “_________” or “_________”.
Equivalents;
Equivalent weight
The formula for solving for equivalent weight is:
Equivalent weight = molecular weight divided by valence
The formula for solving for moles is:
moles = grams of molecular compound divided by gram of molecular weight of compound
The formula for solving for equivalents is:
equivalents: grams of compound divided by gram equivalent weight of compound
Normality is like Molarity, except using equivalents instead. So the equation is:
Normality = grams divided by gram equivalent weight and then divided by liters
