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| Mixtures | 12 mins | 0 completed | Learn Summary |
| Scientific Notation | 6 mins | 0 completed | Learn |
| Accuracy & Precision | 5 mins | 0 completed | Learn |
| Standard Deviation, Mean, Median & Mode | 7 mins | 0 completed | Learn |
| Metric Prefixes | 17 mins | 0 completed | Learn Summary |
| Significant Figures | 18 mins | 0 completed | Learn Summary |
| Energy, Heat and Temperature | 7 mins | 0 completed | Learn Summary |
| Physical & Chemical Changes | 7 mins | 0 completed | Learn Summary |
| Dimensional Analysis | 28 mins | 0 completed | Learn |
| Density | 14 mins | 0 completed | Learn Summary |
| End of Chapter 1 Problems | 51 mins | 0 completed | Learn |
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| The Scientific Method |
| Filtration |
| Physical & Chemical Properties |
| Types of Energy |
A piece of aluminum foil 1.00 cm square and 0.560 mm thick is allowed to react with bromine to form aluminum bromide.
How many moles of aluminum were used? (The density of aluminum is 2.699 g/cm3.)
We are being asked to calculate the number of moles of aluminum used.
We are given the following measurements
area aluminum foil = 1.00 cm2
thickness aluminum foil = 0.560 mm
density aluminum = 2.699 g/cm3
mol aluminum = ?
To calculate the number of moles, we will use dimensional analysis.
Recall: We use dimensional analysis as a fail proof process to convert from one unit to another.
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