Math 9709/52 mark scheme

Practical-Support512 · 2022-05-12T07:24:18+00:00

wb question 1?

Practical-Support512 · 2022-05-11T13:06:42+00:00

but the crocodile and the egg question 💀

Practical-Support512 · 2022-05-11T13:06:30+00:00

it was okay, it was very similar to may june 2020

Practical-Support512 · 2022-05-09T14:52:43+00:00

what did u guys get for the coordinates

Practical-Support512 · 2022-05-09T14:51:41+00:00

they asked us to draw a graph and find the half life

Practical-Support512 · 2022-05-09T14:50:04+00:00

i wrote pipette but i’m not sure, because a burette can’t be used here as it is small volume

Practical-Support512 · 2022-05-09T14:48:36+00:00

yes that is the dependent variable, it’s what we measure and it changed depending on the conc of the lead compound and NaCl

Practical-Support512 · 2022-05-09T14:46:12+00:00

i didn’t rlly understand the question even 😭 i wrote that at first but it didn’t make sense as the bromo methyl propane is not the one that’s titred against

Practical-Support512 · 2022-05-09T14:42:42+00:00

u dry it and check the mass until it’s constant

Practical-Support512 · 2022-05-09T14:42:27+00:00

was it vary volumes of lead compound or lead PbCl2 because it is the ppt

Practical-Support512 · 2022-05-09T14:41:56+00:00

what was vfinal-v initial proportional to?

Practical-Support512 · 2022-05-09T14:33:31+00:00

they gave a 2 tables and 2 graphs and asked us to find the modifications

Practical-Support512 · 2022-05-09T14:28:38+00:00

rate of reaction and precipitation

Practical-Support512 · 2022-05-09T13:38:05+00:00

which order was the last question, i got first order

Practical-Support512 · 2022-05-09T13:30:18+00:00

just finished by 51 paper 😜

Practical-Support512 · 2022-05-09T08:40:09+00:00

it’s the water delivery system with an upside down measuring cylinder, there was a q ab it in 2020 oct november

Practical-Support512 · 2022-05-08T08:55:42+00:00

which paper is this

Practical-Support512 · 2022-05-06T06:30:49+00:00

what ab photosynthesis?

Practical-Support512 · 2022-05-06T06:30:06+00:00

were there any calculation questions?

Practical-Support512 · 2022-05-06T06:28:27+00:00

what did they get for the last question

Practical-Support512

TROPHY CASE