Answer:
The answer to your question is 1.09 moles
Step-by-step explanation:
Data
Volume = 26.97 l
Temperature = 20°C
Pressure = 1 atm
Gas constant = 0.082 atm l / mol°K
Process
1.- Convert temperature to °K
Temperature = 26.97 + 273
= 299.97°K
2.- Write the formula
PV = nRT
-solve for moles
n = PV /RT
-substitution
n = (1 x 26.97) / (0.082 x 299.97)
-Simplification
n = 26.97 / 24.6
-Result
n = 1.09