When a sample of hydrogen is compressed to 240 mL, its pressure changes from 0.80 atm to 2 atm. What was the original volume of the sample?

A. 150 mL
B. 300 mL
C. 450 mL
D. 600 mL

D

Explanation:

PV = P1*V1

P = 0.80 atm

P1 = 2 atm

V1 = 240 mL

0.80 * V = 2 * 240 mL

0.80 * V = 480 atm*mL Divide by 0.80 atm

V = 480 atm / mL / 0.80 atm

V = 480 / 0.8

V = 600 mL

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