Question

What are the masses of oxygen and magnesium in 5.0 grams of MgO?

Answer 1

@wolf1728 @butterflydreamer @IrishBoy123 Could anyone help me?

Answer 2

@ganeshie8 @dan815 @Luigi0210 please help?

Answer 3

@ikram002p @AaronAndyson @Ashley10116 @Bananas1234 @death_lover @Dbzfan836 @georgia545 @hunter2kb @hartnn @Jack1 @mattyboyy @omarbirjas @potatoprincess22 @rosedewittbukater @School5678 @SolidIceCream @TheKylieeM @xo_kansasprincess_xo @youngamerican Need all the help I can get

Answer 4

I can try to help if you give me one moment. I'm doing economics work and I'm almost done.

Answer 5

@mattyboyy Thank I'd appreciate it

Answer 6

Okay I'm done

Answer 7

How should I go about doing this problem

Answer 8

4:30 in the morning and I'm trying to do chemistry -.-

Honestly my mind is so off right now and I haven't done chemistry since last year..

Answer 9

Have you looked on any websites for references?

Answer 10

It's 4:30 for me too, trust me I know the feel.

Answer 11

This is the only question I'm really stuck on

Answer 12

http://faculty.uml.edu/james_hall/84123/5.htm

Would this help?

Answer 13

Or maybe @wolf1728 ?

Answer 14

Yeah I just got here

Answer 15

http://www.ausetute.com.au/molreact.html

Im honestly just tossing out websites right now cause im about to pass out lol

Answer 16

Atomic Mass of
Mg 24.31
Oxygen 16

Answer 17

How did you come to that conclusion @wolf1728 I want to be able to do the problem if it ever comes up again. Also @mattyboyy it's fine, thank you for at least attempting to help me. I appreciate it.

Answer 18

Mg is 1.519375 times more "massive" than oxygen

Answer 19

I was just listing their atomic masses

Answer 20

So how do I solve the problem then?

Answer 21

MgO is one part Mg and one part O
If they "weighed" the same then it would be 2.5 grams of each
Since Mg "weighs" about 1.52 times more than O
we need 1.52 more times of oxygen's mass
Am I right?

Answer 22

So you're saying Magnesium would be 4.02 and Oxygen would be 0.98?

Answer 23

No - I'm working on that right now.

Answer 24

Mg - 1.52
O - 1
Total = 2.52

Mass of Mg = 5* 1.52/2.52 = 3.0158730159 grams
Mass of O = 5 * 1/2.52 = 1.9841269841 grams

Answer 25

I think that's right but it MIGHT be that Mg is 1.9841269841 grams and
O is 3.0158730159 grams
but I think my first answer is correct.

Answer 26

Okay, I really appreciate your help.

Answer 27

Okay and thank you. :-)

Answer 28

I understood how you came to that conclusion

Answer 29

Okay then