given that R=0.0821 (L•atm) / (mol•K) how many moles must be in a 2L container at 1.8 atmospheres with a temperature of 270K

the major pests we deal with are insects, weeds and fungal diseases. a pesticide is a product, whether organic or chemical, used to kill the target pest. there are other techniques gardeners should use that can prevent the severe infestations that make the use of pesticides necessary

if you mean hydrogen and oxygen then water is the product