Practice: When lead levels in blood exceed 0.80 ppm (parts per million) the level is considered dangerous. 0.80 ppm means that 1 million g of blood would contain 0.80 g of Pb. Given that the density of blood is 1.060 kg/cm3, how many grams of Pb would be found in 400.00 mL of blood at 0.620 ppm?
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| Classification of Matter | 15 mins | 0 completed | Learn Summary |
| Physical & Chemical Changes | 19 mins | 0 completed | Learn Summary |
| Chemical Properties | 8 mins | 0 completed | Learn Summary |
| Physical Properties | 7 mins | 0 completed | Learn |
| Intensive vs. Extensive Properties | 14 mins | 0 completed | Learn |
| Temperature | 13 mins | 0 completed | Learn |
| Scientific Notation | 14 mins | 0 completed | Learn |
| SI Units | 8 mins | 0 completed | Learn |
| Metric Prefixes | 24 mins | 0 completed | Learn Summary |
| Significant Figures | 10 mins | 0 completed | Learn Summary |
| Significant Figures: Precision in Measurements | 8 mins | 0 completed | Learn |
| Significant Figures: In Calculations | 15 mins | 0 completed | Learn |
| Conversion Factors | 16 mins | 0 completed | Learn |
| Dimensional Analysis | 21 mins | 0 completed | Learn |
| Density | 13 mins | 0 completed | Learn Summary |
| Density of Geometric Objects | 19 mins | 0 completed | Learn |
| Density of Non-Geometric Objects | 8 mins | 0 completed | Learn |
Density represents the mass of an object or compound within a given volume.
Understanding Density
Concept #1: Density
Example #1: If the density of an unknown metal is 21.4 g/cm3, express its density in lb/ft3.
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