Calcium carbonate is a chemical compound with the formula CaCO3. It is a common substance found in rocks as the minerals calcite and aragonite (most notably as limestone, which contains both of those minerals) and is the main component of pearls and the shells of marine organisms, snails, and eggs.
An ordinary breath for a 70-kg adult is about 500ml of air. We call this the tidal volume. Since oxygen is 21% by volume of air, then the volume of oxygen inhaled is about 105ml. The density of pure oxygen at sea level is 1.43kg per cubic metre.
17,280-23,040 per day The average person takes about 15 breaths a minute. So, 15 x 60 (minutes in an hour)= 900 x 24 (hours in a day) = 21,600. Depending on the circumstances, the average person in-and exhales 12 times per minute 0.5 litres of air. 12 times 0.5 makes 6 litres of air per minute. Thus 60 times (1 hour) 24 times (1 day) 6 litres results in 8640 litres of air in 1 day. This is done in 17280 breaths per day. 54 people found this useful.