1. Using what you learned in this lesson, circle the words that will complete the following sentences
In Buenos Aires, the ocean / air) transfers energy to the ocean / air).
In Cape Town, the ocean / air ) transfers energy to the ocean/ air).

When 16.1 g of octane burn 1.12 moles of  CO₂ are emitted in atmosphere.

Explanation:

Given data:

Mass of octane C₈H₁₈ = 16.1 g

Moles of CO₂ emitted = ?

Solution:

Chemical equation:

2C₈H₁₈ + 25O₂     →    16CO₂+ 18H₂O

Number of moles of octane:

Number of moles = mass/molar mass

Number of moles = 16.1 g/ 114.23 g/mol

Number of moles = 0.14 mol

Now we will compare the moles of octane with carbon dioxide.

             C₈H₁₈            :              CO₂

                 2               :               16

                0.14           :            16/2×0.14 = 1.12 moles

When 16.1 g of octane burn 1.12 moles of  CO₂ are emitted in atmosphere.