Asingle drop of soda contains how many atoms?

Since we are not given with any quantitative information, we have to rely on literature data. Suppose the soda drink referred to here is Coke. The density of a Coke at 20°C is 0.995 g/mL. A single drop of liquid is approximately 0.05 mL. From these two data, we can determine the mass of coke in a single drop.

Mass = 0.995 g/mL * 0.05 mL = 0.04975 g

We have to know the molar mass of Coke. Since majority of it is composed of sugar sucrose, let's take the value of the molar mass of sucrose: 342.2965 g/mol. Using the Avogadro's number (6.022×10²³ atoms/mol),

Number of atoms = 0.04975 g * (1 mol/342.2965 mol) * (6.022×10²³ atoms/mol) = 8.75×10¹⁹ atoms 

The correct answer is "hydrogen".

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