If you have an unknown quantity of gas in moles at a pressure of 3.2 atm, a volume of 18 liters, and a temperature of 325 K, how many moles of gas do you have?

6) (a) calculate the absorbance of the solution if its concentration is 0.0278 m and its molar extinction coefficient is 35.9 l/(mol cm). the depth of the cell is 5 mm. (b) what is the %t? (7) calculate the absorbance of the solution if the transmitted light intensity is 70% of the initial light beam intensity