Question

Review | Constants 1 Periodic Table Part B A sample of gas in a cylinder as in the example in Part A has an initial volume of 56.0 L, and you have determined that it contains 1.60 moles of gas. The next day you notice that some of the gas has leaked out. The pressure and temperature remain the same, but the volume has changed to 14.0 L. How many moles of gas (n2) remain in the cylinder? Express your answer with the appropriate units. View Available Hint(s) O": Å R O ? n2 = Value Units Submit

Answer 1

According to Avogadro's law, equal volumes of any two gases at the same temperature and pressure contain the same number of molecules". so van * v=kn (at constant T and Pl Initial Volume (U) -56L moles (n) = 1.60 (moles) Finally Volume (V) = 141 moles (N2) = 2 substitute all the values in n = 2 . » n = 141 The X 16 (mol) = 0.4 moles. n = 0.4 moles Scanned with CamScanner