need help can someone show me how to do this- helium balloon...

[geissingert]

A helium filled balloon has a volume of 4.5 m3. What mass of helium does it hold if the density of helium is 1.8x 10-4 g/cm3?

I need you to show me step by step exactly how to do please>

 

[Deleted member 4993]

A helium filled balloon has a volume of 4.5 m3. What mass of helium does it hold if the density of helium is 1.8x 10-4 g/cm3?

I need you to show me step by step exactly how to do please>

Since you have no idea - let us start with definitions....

What is the definition of density?

What is the relationship between the mass, the volume and the density of a material?

Tell us what you find......

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Please share your work with us indicating exactly where you are stuck - so that we may know where to begin to help you.

 

[geissingert]

Math Help work done out need input please

v= 4.5 m3
d= 1.8x10-4g/cm3
m= dxv

m=dxv
m=1.8x10- 4 g/cm3 x 4.5 m3

100cm/1m m3/m = m2

100cm/1m x 100cm/1m x 100cm/1m

m=1.8 x 10 -4 g x 4.5x100x100x100

180 x 4.5 = 810 M=810

Since you have no idea - let us start with definitions....

What is the definition of density?

What is the relationship between the mass, the volume and the density of a material?

Tell us what you find......

You need to read the rules of this forum. Please read the post titled "Read before Posting" at the following URL:

http://www.freemathhelp.com/forum/th...217#post322217

We can help - we only help after you have shown your work - or ask a specific question (not a statement like "Don't know any of these")

Please share your work with us indicating exactly where you are stuck - so that we may know where to begin to help you.

 

[geissingert]

Problem done out

Here is my work done out. Please let me know if I did this correctly.
v=4.5 m3
d=1.8x10-4g/cm3
m=dxv

m= 1.8x10-4g/cm3x4.5m3

100cm/1m
m3/m=m2

100cm/1mx100cm/1mx100cm/1m

1000000

m=1.8x10-4 gx4.5 x100x100x100

1.8 x100x100x100

1.000008
180 x 4.5= 810
m=810

 

[Deleted member 4993]

Here is my work done out. Please let me know if I did this correctly.
v=4.5 m3
d=1.8x10-4g/cm3
m=dxv

m= 1.8x10-4g/cm3x4.5m3

I would replace the next four lines

100cm/1m
m3/m=m2

100cm/1mx100cm/1mx100cm/1m

1000000

with

1 m = 100 cm

1 m³ = (100)³ (cm)³ = 10⁶ cm³

m=1.8 * 10-4 g/cm³ * 4.5 * 10⁶ cm³

= 1.8 * 4.5 * 10² g

= 810 g

Looks very good. I put some suggestions to make your answer "more readable".