Posted by **Shelby** on Sunday, September 23, 2012 at 12:37pm.

The density of dry air measured at 25 degrees Celsius is 1.19x10 to the negative 3rd power. What is the volume of 50.0g of air?

- Chemistry -
**DrBob222**, Sunday, September 23, 2012 at 12:42pm
mass = volume x density.

Substitute for mass and density; solve for volume. Make sure the units of density (you don't list that) agrees with the unit you want in the answer.

- Chemistry -
**Shelby**, Sunday, September 23, 2012 at 12:49pm
can u explain that a little more because i still dont understand

- Chemistry -
**DrBob222**, Sunday, September 23, 2012 at 1:29pm
There isn't anything to explain.

mass = volume x density. That's the formula. That's it. End of story. You read the problem, substitute the numbers, solve the equation.

mass in the problem = 50g

density in the problem = 1.19E-3. You don't list the units. I will assume for purposes of showing you that this is 1.18E-3 g/mL. If it is some other unit you will need to adjust that.

Substitute.

mass = volume x density

50 = volume(in mL) x 1.19E-3 g/mL

volume = 50/1.19E-3 = about 42000 mL.

If you will explain what trouble you are having perhaps I can focus on a better answer.

- Chemistry -
**hi**, Tuesday, March 31, 2015 at 1:29pm
50/.00119=42016.8067227mL>>then you have to round to 2 significant digits b/c 50 has 2 sig figs which is the least # of sig figs

- Chemistry -
**hi**, Tuesday, March 31, 2015 at 1:30pm
50/.00119=42016.8067227mL>>then you have to round to 2 significant digits b/c 50 has 2 sig figs which is the least # of sig figs, so its 42,000mL

- Chemistry -
**Emma^2 and Catie**, Thursday, November 5, 2015 at 1:33pm
sma

## Answer This Question

## Related Questions

- chemistry - The density of dry air measured at 25 degrees celsius is 1.19 x 10 ...
- College Chemistry - When determining the vapor pressure of water, the bubble ...
- College Chemistry - When determining the vapor pressure of water, the bubble ...
- College Chemistry - When determining the vapor pressure of water, the bubble ...
- Chemistry - Dry air has a density of 1.29g/L (at 25 degrees celsius and 1 atm of...
- Physics sph 212 - A person takes in a breath of 0 degrees celsius air and holds...
- Chemistry - 88-L sample of dry air cools from 197 degree celsius to -48 degrees ...
- Chemistry - On a warm summer day in Athens, the temperature is 33C (dry bulb ...
- Physics also - A cylindrical diving bell 5 m in diameter and 10 m tall with an ...
- Physics - Submerged Cylinder - A cylindrical diving bell 5 m in diameter and 10 ...

More Related Questions