A 9.79 mol sample of freon gas was placed in a balloon. Adding 3.50 mol of freon gas to the balloon increased its volume to 21.8 L. What was the initial volume of the balloon?

16.06 L was the initial volume of the balloon.

Explanation:

Initial moles of freon in ballon =

Initial volume of freon gas in ballon =

Moles of freon gas added in the balloon = n = 3.50 mole

Final moles of freon in ballon =

Final volume of freon gas in ballon =

Using Avogadro's law:

( at constant pressure and temperature)

16.06 L was the initial volume of the balloon.

8

explanation:

each principal energy level above the first contains one s orbital and three p orbitals. a set of three p orbitals, called the p sublevel, can hold a maximum of six electrons. therefore, the second level can contain a maximum of eight electrons - that is, two in the s orbital and 6 in the three p orbitals.

mark brainliest and have a great day!

answer: enthalpy

explanation:

for a exothermic reaction, the energy is released i.e. the energy of the products is lower than the energy of the reactants.

= enthaply

= energy of products

= energy of reactants

as , thus comes out to be negative. negative value of enthalpy shows that the reaction is exothermic.