Question

If you are on a field trip to the ocean and you recovered 750 grams of ocean salts from a sample of ocean water, based on known percentages of dissolved solids in ocean water, what would be the mass of sodium in the sample?

A.



24.51 g


B.



0.041 g


C.



229.5 g


D.



750 g

Answer 1

We are missing information here, more specifically, we need to know the percentages of dissolved salt in water.

Answer 2

the percentage of dessolved salt in water
is 3.5 %

Answer 3

Then it should work like this.
You have 750 grams of seawater. 3.5% of it is salt. We would just multiply the two together.

Answer 4

but i dont get any of the answers?

Answer 5

Okay, let me take a look.

Answer 6

What numbers did you get?

Answer 7

i got 26.25

Answer 8

Okay. Same. Were you given any other numbers/information in the question that you left out?

Answer 9

no i did not. this is all that the question gave..

Answer 10

Maybe @inkyvoyd can help :D

Answer 11

Nope. I'm not a marine biologist xD

Answer 12

We need the number that Argonx mentioned

Answer 13

what number?

Answer 14

Concentration of salt in seawater. Either we're interpreting the question wrong, or the question is written wrong. I think you should either leave it blank or pick like A or whatever is closest to the answer we got, and then ask your teacher.

Answer 15

i figured out that there is 30.6 % of sodium in the water, so i multiplied 750 and 30.6% together to get 229.5

Answer 16

Okay. That seems about right. Good job!

Answer 17

thank you!

Answer 18

Yes, if statistics agree that it is 30.6%, you should be correct.