1. Intro to General Chemistry

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?

If a substance has a large mass and a small volume, what can you conclude about it?

What is the mass of 2.00 L of an intravenous glucose solution with a density of 1.15 g/mL?

What two quantities must be known to calculate the density of a sample of matter?

If the solid form of most molecules is heavier than the liquid form, why does ice float?

The density of air at ordinary atmospheric pressure and 25 °C is 1.19 g/L. Each 1.00 g of air contains 0.21 g of oxygen gas. What is the mass, in kilograms, of the oxygen gas in a room that measures 15.1 ft×19.6 ft×9.0 ft?