other stuff for final

Question 1

what are the molecular elements (7)

Answer 1

H2, N2, O2, F2, Cl2, I2, Br2

Question 2

percent yeild formula

Answer 2

(actual yeild/theoretical yeild) x 100

Question 3

percent error formula

Answer 3

[(experimental value - actual value) / actual value] x 100

Question 4

formulas to calculate moles

Answer 4

mols = mass/molar mass
mols = volume x concentration

Question 5

empirical properties of acid

Answer 5

turn blue litmus red, ph <7, conduct/electrolyte, taste sour

Question 6

empirical properties of base

Answer 6

turn red litmus blue, pH >7, conduct/electrolyte, taste bitter, feel slippery

Question 7

how to get ph from concentration

Answer 7

-log(concentration)

Question 8

how to get concentration from ph

Answer 8

10^-ph

Question 9

whats the pop test

Answer 9

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

Question 10

pressure equivalents

Answer 10

101.325kPa = 760mmHg = 1.0atm

Question 11

how to calculate concentration

Answer 11

solute/solvent

Question 12

what makes it a strong base

Answer 12

hasto have a metal and an OH-

Question 13

is ammonia (NH3) an acid or base

Answer 13

base

Question 14

what happens to volume when you mix a solute into a solution

Answer 14

changes/increases

Question 15

what happens to volume when you mix a solute into a solution

Answer 15

changes/increases

Question 15

what happens to volume when you mix a solute into a solution

Answer 15

changes/increases

Question 15

what happens to volume when you mix a solute into a solution

Answer 15

changes/increases

Question 16

what happens when a solution becomes saturated

Answer 16

when things can’t dissolve anymore, one particle leaves the lattice and another one replaces it at an even rate

Question 17

what’s the difference between intermolecular forces and intramolecular forces

Answer 17

Intermolecular forces is attraction between neighbouring molecules, intramolecular forces is what holds a singular molecule together

Question 18

steps to write a neutralization equation

Answer 18

1. put acid and base reaction together
2. remove things that are the same on both sides to give you a product to H30 and OH
3. put together to make 2H2O which is neutral