Question

How many sucrose molecules will be in 250 grams

Answer 1

Answer:

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 × $\frac{1 mol}{342.297g}$ × $\frac{6.022 * 10^{23} molecules}{1 mol}$ = 4.398 molecules

There are 4.398 sucrose molecules in 250 grams of sucrose.