Question

How many molecules are in 2.50 moles of carbon dioxide?

Question 3 options:


1.5055 molecules


4.15 x 10^24 molecules


1.5055 x 10^24 molecules


2.4 x 10^24 molecules

Answer 1

1.5055×10²⁴ molecules

Step-by-step explanation:

From the question given above, the following data were obtained:

Number of mole CO₂ = 2.5 moles

Number of molecules CO₂ =?

The number of molecules present in 2.5 moles CO₂ can be obtained as:

From Avogadro's hypothesis,

1 mole of CO₂ = 6.022×10²³ molecules

Therefore,

2.5 mole of CO₂ = 2.5 × 6.022×10²³

2.5 mole of CO₂ = 1.5055×10²⁴ molecules

Thus, 1.5055×10²⁴ molecules are present in 2.5 moles CO₂