DDT is used as insecticides its molar mass is 354.5 g/mol .When DDT was analyzed by chemist he found that it contains 47.4 % carbon. How many carbon atoms are there in DDT?

Aballoon inflated with three breaths of air has a volume of 1.7 l. at the same temperature and pressure, what is the volume of the balloon if five more same-sized breaths are added to the balloon? a balloon inflated with three breaths of air has a volume of 1.7 l. at the same temperature and pressure, what is the volume of the balloon if five more same-sized breaths are added to the balloon?

The grooves or folds of the brain are called

The kw for water at 0 °c is 0.12× 10–14 m2. calculate the ph of a neutral aqueous solution at 0 °c.