Revision Flashcards
How do you calculate the Molar Mass?
Times the atomic mass (in grams)
Three properties of bases
1) Taste bitter
2) Turn red litmus paper blue
3) pH of over 7
Three properties of acids
1) Taste sour
2) Turn blue litmus paper red
3) pH of less than 7
List the prefixes: 1-10
Mono, di, tri, tetra, penta, hex, hepta, octa, nona, deca
What is a hydronium ion?
H3O
CH3COOH
Acedic acid
Can water be both an acid and a base? Why/why not?
Yes because it can both donate a hydrogen proton and accept a hydrogen proton
What is an isomer?
Different ways to draw a carbon molecule (eg. C5H12)
What is the difference between intramolecular forces and intermolecular forces?
Intramolecular = inside the bonds
Intermolecular = between the atoms
Which intermolecular force is the strongest?
Hydrogen
Thermochemistry is the study of _ _ _ _
Heat
The energy stored in chemical bonds is called
Chemical potential energy
Symbols for:
1) heat
2) enthalpy
3) change in enthalpy
1) q
2) H
3) Delta H
Exothermic = hot/cold test tube?
Hot
Endothermic = hot/cold test tube?
Cold
Exothermic = heat released/absorbed
Released
Endothermic = heat released/absorbed
Absorbed
q is positive/negative in exothermic reactions?
Negative
What is heat capacity?
The amount of heat energy required to change the temperature of something by 1 degree
What is specific heat capacity?
The amount of heat energy required to change the temperature of 1g of something by 1 degree
List the prefixes for carbon bonds
Meth, eth, prop, but, pent, hex, hept, oct, non, dec
