EasyChemistryHigh School (11–12)Atoms and Molecules › The Mole ConceptNumericalBoard ExamAPA-LevelIB
A drip bag holds 90.08 g of glucose, C₆H₁₂O₆, of molar mass 180.16 g mol⁻¹…
Contributed by StemPy LabTry it on paper first. A hint, the key idea and the worked solution are here when you need them.
A drip bag holds g of glucose, , of molar mass . How many moles of glucose is this? How many molecules? And how many atoms in all?
Need a reminder? The key ideaShow
One mole is particles, the Avogadro constant . The molar mass in g/mol has the same number as the molecular mass in u. The amount is , and the number of particles is .
The worked solution
Have you tried it?
Work it out on paper first. It is fine to get stuck or make a mistake: that is how we learn. When you are ready, go through the solution one step at a time, and check each step against your own.
Step 1. Moles. .
Step 2. Molecules. molecules.
Step 3. Atoms. atoms.
Answer: mol, molecules and atoms.
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