October 2016 - SAT Chemistry

Test Preparation SAT Subject Test Preparation
1

So three weeks, the first SAT testing session of the year. Who’s excited? :stuck_out_tongue: Any questions or help needed can go here I guess!

I’m planning to take the chemistry test with only Honors Chemistry, so some of the stuff especially the lab setups are a bit over me. Any good resources for that?

Also, is there any general list for soluble gases in water at standard conditions? I know solubility is negatively affected by higher temperatures and decreased pressure, but occasionally there are questions that basically ask which gases are soluble/insoluble in water and I have no idea!

2

Water is a polar substance; therefore, polar gases will dissolve in it. This explains how collecting a gas over water works. The only gases that you can collect over water are NONpolar because they’re imiscible with water.

3

Lol people aren’t done with the test?

4

That was difficult. What do you think? I have 3 omitted and 1 confirmed mistake till now.

Curve will hopefully be 75 raw = 800 ^:)^

5

Which questions did you omit?

6

Really? No one took chem? Lol

7

There were a few I didn’t know but I felt pretty confident overall

8

:~}

9

For the hydrogen was it 6(6.02*10^23)?

10

I simply got 6 grams for that since it was asking for the mass if there was one molecule of this compound. There were six hydrogens in the compound. A molecule is a group of atoms and there six hydrogen atoms in that one molecule so shouldnt that have been 6?

11

I thought it would be 6 grams for 1 mole of hydrogen. And 1 mole of that compound has Avogadro’s number of molecules.
So I did 6-1mole , x-1/Avogadro’s

12

Is there anyone else that has an answer?lol. I just felt like 6(6.02*10^23) would be finding how many molecules of H there were rather than the actual mass. U could be right tho im not sure.

13

Ahhhh wait lol. I actually think it’s 6/Avogadro’s hahaha idk mahn

14

Was there an option like 6/Avogadro’s ?

15

That would make more sense but im not sure actually. Was there an option like that??

16

I guess all we can do is pray that the curve isnt too hard haha

17

Actually i think 6/avogadros number could be correct. But the most exact way to do it would be find the mass percentage of hydrogen in the compound then find the molar mass of the compound then divide that by avogadros number then multiply that by the mass percentage. Lol but i doubt they wouldve made us do a long process like that.

18

Was there even a 6/avogadros?

19

lol oh well then.
What you think the curve is like ?

20

The option was 1X10^23