ions Flashcards
nitrate ion
carbonate ion
CO₃²⁻
sulfate ion
SO₄²-
hydroxide ion
OH-
ammonium ion
zinc ion
silver ion
Ag+
charge of a transition metal ion
2+
nitrile ion
hydrogen carbonate ion
sulphite ion
dichromate ion
phosphate ion
nitrite vs nitrate
nitrite: NO2-
nitrate: NO3-
sulfide, oxide, bromide
monatomic ion just him alone
what are halogens good at
oxidation, mafia 💪🏾 lots of taking not giving
what silver compound forms as a black precipitate
silver sulfide Ag2S
it’s a black coating in the surface of silver
how do you do the electron configuration of an ion
do the normal configuration first to make sure that you remove 4s before 3d!
why would you use a lower concentration of the thing in the burette in a titration
to lower percentage uncertainty
what can react with a carbonate to create bubbles
any acid!
how do you know how many isomers are possible in a compound
2 to the power of however many chiral centres there are
how do you work out how much water needs to be added to a known volume and concentration of something to reach a different concentration
use vol and conc to find the moles
do the moles divided by the wanted conc to get the total vol at that conc
do needed minus current vol to know how much water to add
what’s useful and good for mark schemes in any equation question
writing out rearranged equations
what is important when purifying a substance that is in a mixture with acids
neutralise! eg. with Na2CO3
what’s in a half equation for oxidation vs reduction
oxidation
element —> positive ion and e-
reduction
positive ion + e- —> element
when is the shape square planar
when there are 4 atoms attached to the central atom and two lone electron pairs
what compound is used as a standard for NMR shift measurements
tetramethylsilane
Si(CH3)4
what is the formula of ammonia
NH3
what is the formula of the ammonium ion
NH4+
can UV radiation be beneficial
for the environment
yes it can cause some polymers to photodegrade and this benefits the environment
what is the bond angle in a square planar molecule
90 degrees!
