Question

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Answer 1

The lab should have given you specific instructions

Answer 2

it did but I don't understand how to do it

Answer 3

Alright can you paste the procedures?

Answer 4

I can help but what exactly are you looking for? The number of moles of sugar or the molar mass of it?

Answer 5

Ok so since n=m/molar mass, to get mass, you multiply the number of moles with the molar mass.

Answer 6

Didn't you just say the moles of compound is 0.002828?

Answer 7

Sure. Well she showed you how to get the ratio mass of Na in NaCl. What ration would you like for sugar?

As I said before, the number of moles is the mass of a substance divided by its molar mass.

Answer 8

ratio* sorry

Hmmmm. Ah I see. So mole ratio of each element in sugar. So can you get me the chemical compound of sucrose?

Answer 9

Alright then for C it will be 12 the molar mass of C over the molar mass of the whole molecule times the number of moles. Does that make sense?

Answer 10

Sure. So the total mass of C is:
12(12)/12(12)+1(22)+16(11) * 0.002828

Answer 11

@wolfe8

Answer 12

@wolfe8 ??

Answer 13

Ah my bad I should have written it as 12(12)/(12(12)+1(22)+16(11)) * 0.002828 or\[\frac{ 12(12) }{ 12(12)+1(22)+16(11) } \times 0.002828\]

Answer 14

so 342?

Answer 15

wait no its 0.967176

Answer 16

No. Try again.

Answer 17

Still not right. Make sure you do multiplications first before addition.

Answer 18

Correct. And then you can do the same for H and O but use their masses on top. Can you do that?

Answer 19

What we did was \[\frac{ mass of element }{ mass of compound } \times moles\]

Answer 20

Well we did for C. What we did exactly was \[\frac{ mass ofC12 }{ mass ofC12H22O11}\times moles\]

Answer 21

I showed you how to do for C. You have to get for H and O now. Use the mass of them instead of C on top in that equation

Answer 22

...you want the mass of each element. Why would you combine them after finding each of them so hard? No you don't combine. You will have 3 different values.

Answer 23

...I don't understand. You said: lala2: @wolfe8 can you help me find the moles of each element of sucrose or table sugar???

This is what I'm showing you... I'm sorry but I don't get what you actually want. This is why I asked for the procedures on the lab. I'll have to stop here I have a headache now. Good luck.

Answer 24

OK I think what we did is the final answer. Just put that in. Do the same method for the others.

Answer 25

this looks like fun

Answer 26

can you help @msumner

Answer 27

its 5

Answer 28

what?

Answer 29

i said 5

Answer 30

whats 5?

Answer 31

what wolfe said is true

Answer 32

could you show me the steps?