## anonymous 2 years ago aarong please help me with my chemistry homework find the volume of a 93.91g sample of air, which has a density of 0.00130g/ml

1. abb0t

density is defined as $$\sf \color{}{\frac{mass}{volume}}$$

2. anonymous

okay

3. anonymous

0.00130g/ml equals 98.91 over volume!! but I got .122083 is that right

4. abb0t

I don't have a calculator, but as long as you divided, you should be correct.

5. anonymous

so 0.00130g/ml divided by 98.91 will get you the answer..

6. anonymous

i mean 93.91 g

7. anonymous

sorry

8. anonymous

but my teachers answer sheets says 72200 mL

9. anonymous

and i got a different answers help

10. abb0t

You probably put it in the calcuator wrong, because it should be that answer. Recheck

11. anonymous

HELP

12. anonymous

my teacher or me place get a calculator so you can help me.. Don't understand my teacher

13. abb0t

You are plugging it incorrectly!

14. anonymous

0.00130 divided by 93.91 equal.. Thats what i did or do i touch 2nd 0.00130 divided by 93.91 equals..

15. abb0t

93.91 divided by 0.00130!!

16. anonymous

i see what i did wrong u told me to divided. you didn't tell me what to divded or how to/ its mass divided by the density..

17. anonymous

i got the answer d equals 42.7 over 21.13 whats the density?

18. abb0t

You always start with what you're given, so u can cancel out the units, like from Algebra: $$\sf \color{}{a \times \frac{b}{a}}$$ the a's cancel outyou're left with "b"

19. anonymous

d equals 42.7 over 21.13 whats the density?

20. anonymous

Help

21. aaronq

22. anonymous

Will sample float in water that has a mass of 42.7g and a volume of 21.13mL?

23. abb0t

24. anonymous

I got arronq helping me so bye abb0t i really didn't understandy what you were teaching me sorry..

25. anonymous

your like my teacher, your not great a teaching okay i'm just saying that's why i found this website. So i can be helped by anyone okay. I'm sorry

26. anonymous

now arronq is gone and he was going to help me with my question...

27. anonymous