[aziza]

Hello:

I'm just a bit confused as to how to cancel the units in this question:

Calculate the height of a column of liquid benzene (d=0.879 g cm^-3), in meters, required to exert a pressure of 0.970atm

So h_b = .0970atm/(9.80665 m s^-2 x 0.879 g cm^-3)
                        = 11.3 meters

I get the numbers right, I just don't understand what to convert/cancel etc....


Any help would be appreciated!


Regards,

Michelle

[enahs]

Can you be a little more specific? As the way you have the math written does not give the answer given. How can you get the numbers right without converting units properly?

[Yggdrasil]

1 atm = 101325 Pa where 1 Pa = 1 N m^-2 = 1 kg m^-1 s^-2

[aziza]

Ohhhh of course!
But how do I cancel the cm^-3??


Thank you!

~Michelle

[Yggdrasil]

1 cm³ = 1 mL