A 12 fluid ounce Coca-Cola contains 6.9*10^22 molecules of sugar (C12H22O11). How many grams of sugar are there in a coke?

37.62 g

Explanation:

First we convert 6.9x10²² atoms of C₁₂H₂₂O₁₁ to moles, using Avogadro's number:

Then we convert moles of C₁₂H₂₂O₁₁ to grams, using its molar mass:

Molar mass of C₁₂H₂₂O₁₁ = (C molar mass)*12 + (H molar mass)*22 + (O molar mass)*11 = 342 g/mol

the electrical  conductivity  of asolution  of an electrolyte is measured by determining the resistance of thesolution  between two flat or cylindrical electrodes separated by a fixed distance.

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