other stuff for final Flashcards
what are the molecular elements (7)
H2, N2, O2, F2, Cl2, I2, Br2
percent yeild formula
(actual yeild/theoretical yeild) x 100
percent error formula
[(experimental value - actual value) / actual value] x 100
formulas to calculate moles
mols = mass/molar mass
mols = volume x concentration
empirical properties of acid
turn blue litmus red, ph <7, conduct/electrolyte, taste sour
empirical properties of base
turn red litmus blue, pH >7, conduct/electrolyte, taste bitter, feel slippery
how to get ph from concentration
-log(concentration)
how to get concentration from ph
10^-ph
whats the pop test
Test that measures the amount of pressure a gas produces by filling a test tube with a small amount of gas then igniting it; if the gas makes a popping sound then it shows that the gas has a high pressure
pressure equivalents
101.325kPa = 760mmHg = 1.0atm
how to calculate concentration
solute/solvent
what makes it a strong base
hasto have a metal and an OH-
is ammonia (NH3) an acid or base
base
what happens to volume when you mix a solute into a solution
changes/increases
what happens to volume when you mix a solute into a solution
changes/increases
what happens to volume when you mix a solute into a solution
changes/increases
what happens to volume when you mix a solute into a solution
changes/increases
what happens when a solution becomes saturated
when things can’t dissolve anymore, one particle leaves the lattice and another one replaces it at an even rate
what’s the difference between intermolecular forces and intramolecular forces
Intermolecular forces is attraction between neighbouring molecules, intramolecular forces is what holds a singular molecule together
steps to write a neutralization equation
- put acid and base reaction together
- remove things that are the same on both sides to give you a product to H30 and OH
- put together to make 2H2O which is neutral
