Question

How many sucrose molecules will be in 250 grams

Answer 1

We will need to know Avogadro's number and the molar mass of sucrose for this problem to do dimensional analysis.

• Avogadro's number: 6.022 × 10²³ molecules
• Molar mass of sucrose: 342.2965 g/mol

250g ×
`(1 mol)/(342.297g)` ×
`(6.022 * 10^(23) molecules)/(1 mol)` = 4.398 molecules

There are 4.398 sucrose molecules in 250 grams of sucrose.