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PCQA lec midterms


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[Front]


Antoine Lavoiser
[Back]


33 chemical elements

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56 questions
🇬🇧🇬🇧
Antoine Lavoiser
33 chemical elements
Johann Wolfgang Dobereiner
Grouped it into triads
Leopold Gmelin
Identified the 10 triads of the periodic table
Jean-Baptiste Dumas
Described the relationship between various group of materials
Auguste Kekule
Observed group of carbons
John Newlands
Arranged the periodic table according to their increasing atomic weight
Dmitri Ivanovich Mendeleev & Julius Lothar Meyer
Published the periodic law – arrangement is in increasing atomic mass
Henry Mostly
Arranged the modern periodic table – increasing atomic number
Carbon Family
Group IVA
Boron Family
Group IIIA
DOC for mania
Lithium carbonate Li2CO3
Most abundant source of sodium
Halite - Rock salt of NaCl
Cathartic/laxative, treatment of cystitis, urinary acidifier
NaH2PO4 (Fleet enema) Monobasic Sodium Phosphate
Antidote for Ag poisoning
NaCl (Sodium Chloride)
Tx to overdose of class 1 antiarrythmics
C3H5NaO3 (Na Lactate, Sodium Lactate)
Cathartic, AKA Glauber's salt
Na2SO4 (Sodium Sulfate)
Prime standard of Karl Fischer titration
Na2C4H4O6 (Sodium Tartrate)
Sources of K
Sylvite, Carnalite, Alunite
Diuretic, urinary alkalinizer, antacid
KCH3COO- (Potassium Acetate)
Laxaative, AKA Cream of tartar, creamor
KHC4H4O6 (Potassium bitartrate)
KCl antidote
Insulin and NaHCO3
Used in submarine/space craft
KO2 (Potassium Superoxide)