How many kilograms are in 75.0 lbs. (28.35 grams per ounce)

If 22.5 of nitrogen at 748 mm hg are compressed to 725 mm hg at constant temperature. what is the new volume?

Jenny wants to test the electrical conductivity of two substances dissolved in water. she is preparing the containers for the experiment. which factor is most important for her to control?

The lab procedure involves several factors, listed below some were variable and some were constant. label each factor below v for variable ot c for constant