what volume will 4.2g of SO2 occupy at 370C and 1870 torr?

Question

chemistry need help to solve 

Answer 1

Assuming ideal gas behavior,

 

PV = nRT ⇒

 

V = nRT/P

 

P = 1870 torr, but you may need to convert to SI units

T = (370 + 273)K

R = universal gas constant (look it up in your chemistry book)

n = number of moles of SO₂

m = mass = 4.2 g

 

Find the molecular weight W of SO₂ in grams per mole.  You can add the atomic weights of S and 2O.  Then  

 

n = m/W

 

Plug in the numbers in appropriate units.