Persons are medically considered to have lead poisoning if they have a concentration greater than `10` micrograms of lead per decilitre of blood. What is the concentration in parts per billion?

Salt concentration (parts per thousand) is less than 5% in

Lead concentration of blood is considered alarming at

Lead concentration of blood is considered alarming at

Lead concentration in blood is considered alarming, if it is

The concentration of a solution having concentration 0.24M is reduced to 0.12M in 10 hours and 0.06M in 20 hours. What is the rate of the reaction?

Lead concentration in blood is considered alarming if it is

Lead concentration in blood is considered alarming if it is

The mercury content of a stream was believed to be above the minimum considered safe limit (1 part per billion, by mass). An analysis indicated that the concentration was 1.68 parts per billion. How many Hg atoms are present in 15 L of water, the density of which is 0.998 g/ml. (Hg = 200)

The mercury content of a stream was believed to be above the minimum considered safe limit (1 part per billion, by mass). An analysis indicated that the concentration was 1.68 parts per billion. How many Hg atoms are present in 15 L of water, the density of which is 0.998 g/ml. (Hg = 200)