In a reaction between sodium and oxygen to make sodium oxide. How many liters of oxygen is needed to make 5.50 moles of sodium oxide? Write the
numerical answer only. *
Your answer
check your chemical reactions

Liters of Oxygen : 61.6 L

Given

5.5 moles Na₂O

Required

Liters of Oxygen

Solution

Reaction

4Na+O₂⇒2Na₂O

mol O₂ from equation :

= 1/2 x mol Sodium oxide

= 1/2 x 5.5

= 2.75

Assume at STP(1 mol gas=22.4 L), liters O₂ :

= 2.75 x 22.4

= 61.6 L

in scientific notation, the value of the  speed of light in a vacuum

  will be written as 2.995 * 10^8. when this value is represented in the form of

  a * 10^b, then, a = 2.995 and b = 8.

the value of the speed of light in a vacuum given above can also be rounded up to approximately 300000000. in this case, the scientific notation will be written as 3 *10^8.

b. is the answer hoped i