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Chemistry review
Chemistry review
21
Chemistry
Professional
02/26/2012

Additional Chemistry Flashcards

 


 

Cards

Term
How would you find the equivalent weight of KCl?
Definition

Determine the equivalent weight = gram atomic weight ÷
                  valence

            Molecular weight of KCl = 74.5

            Valence = 1 (K+; Cl-)

            Equivalent weight = 74.5 ÷ 1 = 74.5 grams

Term
What is the molecular weight and valence of NaCl?
Definition
Sodium Chloride 58.44 (1) 
Term
MW and valence of NaCHO3
Definition
Sodium Bicarbonate 84 (1)     
Term
MW and valence of all forms of Sodium Acetate
Definition

      anhydrous 82 (1)

trihydrate 136 (1)     

Term
MW and valence of Sodium lactate
Definition
Sodium Lactate 112 (1)
Term
MW and valence of Potassium Chloride
Definition
   Potassium Chloride 74.55 (1) 
Term
MW and valence of potassium gluconate
Definition
   Potassium Gluconate 234.25(1) 
Term
MW and valence of calcium gluconate
Definition
Calcium Gluconate 430.4 (2) 
Term
MW and valence of calcium lactate
Definition
Calcium Lactate
(anhydrous) 218.22 (2)
Term
MW and valence of Calcium Chloride
Definition

Calcium Chloride
 anhydrous 111 (2)

 dihydrate 147 (2)

Term
MW and valence of Magnesium Sulfate
Definition

Magnesium Sulfate

 heptahydrate 246.5 (2)

 anhydrous 120.4 (2)

Term
MW and valence of magnesium chloride
Definition

Magnesium Chloride

 anhydrous 95.21 (2)

hexahydrate 203.3 (2)

Term
How do you calculate milliosmolarity (mOsm/L)?
Definition
mOsm/L = (moles/L) x number of species x 1,000 moles
Term
The number of protons in the nucleus is equal to the...
Definition
atomic number of the element
Term
The nucleus also contains neutrons.  The number of protons + neutrons = 
Definition
the mass number
Term
What are ions?
Definition
Charged particles formed from atoms
Term
When are ions produced?
Definition
When an atom gains or loses electrons
Term
Loss produces a ___ charged ion while gain produces a ____ charged ion
Definition
positively, negatively
Term
A sodium atom that has lost one electron is...
Definition
Na+
Term
A sulfur atom that has gained two electrons is....
Definition
S-2
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