core skills test

what is the resolving power of a microscope

smallest distance to distinguish 2 objects

what affects resolving power

lower wavelength increases resolving power

how to calculate total magnification

eyepiece x objective lens

how to calculate field of view diameter

field number / objective lens

calculate H+ ions of a weak acid

x = sqr root (Ka x C)

when should you use quadratic formula for ph

when acid < 10-3 or Ka > 10-3

how to find pH of a weak base

use Kb to find pOH, then find pH

pH of an acid buffer

pKa - log(acid/salt)

why is soil microplastics measured qualitatively

no standard method of quantitively measuring

how was accuracy of P20 pipette measured

absorbance of crystal violet solution

what was used for the pH buffer

L-histadine

special about L-histadine

has 3 equivalence points due to different functional groups

how to calculate absorbance

absorbance = extinction x concentration

which chlorophyll is responsible for photosynthesis

chlorophyll a

what does chlorophyll b do

accessory pigment to extend spectrum of absorption of a and increase capacity to absorb light

colour of chlorophyll a vs b

a is more blue, b is more green

corrosive

serious health hazard

toxic

health hazard

harmful to aquatic environments

oxidising

explosive

compressed gas

radioactive hazard

biohazard

what bin are waste contaminated with trace chemicals put in

yellow bin with blue liner