Anyone got their MC solutions?

[saedf]

If you do please post them here

[adam_s95]

I had A,B,A,C,C,A,A,C,B,B,C,A,D,D,D,C,B,D,C,A,D,C,C,A,B,D,B,D,B,C with one or two guesses

[saedf]

I had ABACCAACCBCDBDDCBDCADCCABDBDBDD So 4 of ours are different, although I did rush them when I put them down so I could've possibly copied some incorrectly

[adam_s95]

The first MC answer was 5 sig figs

Damn . I mustn't have read it properly. Was the 2 sig fig value unrelated to what it wanted you to calculate?

[Stevensmay]

The first MC answer was 5 sig figs

We have four answers saying it was two. Are you sure?

[achre]

I said A, because it was the lowest number of sig figs, but I remember there was some weird rules for multiplying and dividing (which you had to do to get the pressure) that I never bothered to learn.

[Edward21]

Don't judge me, I actually struggled with the first question, sig figs are like the worst for me I put A which was 2 but I actually stared at it for like 4 minutes!! hahaha omg but I went well with the rest of the MC, that first question was like woah simple stuff.

[Stevensmay]

I said A, because it was the lowest number of sig figs, but I remember there was some weird rules for multiplying and dividing (which you had to do to get the pressure) that I never bothered to learn.

I thought those rules were for margin of error? Maybe I'm wrong.

[Chazef]

abadcaaccb
cabddcbdcb
accaddbcbc
but I did copy them down pretty hastily so there's bound to be errors

[simba]

LOL I love how you can't detect sarcasm on the internet, sorry guys lol

Yeah it was 2 sig figs obviously hahaha.


I didn't get that one was an Fe stick (I think?) there were three separate beakers with different solutions. No idea what to do

Use the electrochemical series to see if a spontaneous redox reaction occurs between the solution and fe stick

[saedf]

Had to check if they could spontaneously react am I right? Just look at your chem series. It was Beaker 1

[saedf]

1 & 2** don't know why half my comment was deleted

[andyse7en17]

What did you guys get for the back titration question? I can't remember it exactly... sth like which of the following 3 cases are best for back titration. I chose ii and iii (not the volatile one), but now I think the answer should be all 3

[achre]

All 3, but I was unsure about the 2nd one.

[andyse7en17]

I think the 2nd should be fine if we think it this way:
Putting excess diluted acid & solid, let them react. Back titration for the excess amount of acid...