Amu or also known as atomic mass unit is a SI unit that is used in chemistry to identify the total of the mass of neutrons and protons. In this case,a carbon-12 has a mass of amu. amu is equivalent to grams per mole. In this case, the mass of 13.2 amu is 13.2 grams per mole

3 0

3 years ago

At what temperature will 55 grams of chlorine gas Cl2 exert a pressure of 245 kPa at a volume of 3.4 liters?

DiKsa [7]

132.67 K is the temperature at which 55 grams of chlorine gas exert a pressure of 245 kPa at a volume of 3.4 liter.

Explanation:

Data given:

mass of chlorine gas = 55 grams

atomic mass of chlorine gas = 71 grams/mole

pressure of chlorine gas = 245 kPa 0R 2.41 atm

volume of the chlorine gas = 3.4 litres

temperature of the chlorine gas = ?

R = 0.08201 Latm/moles K

n =?

Assuming that chlorine behaved like ideal gas, the formula used will be,

PV = nRT

number of moles = $\frac{mass}{atomic mass of 1 mole}$

number of moles= $\frac{55}{71}$

number of moles = 0.77

putting the values in ideal gas equation:

T = $\frac{2.41 X 3.4}{0.08021 X 0.77}$

T = 132.67 K

temperature is 132.67 K

3 0

3 years ago