1. A 7.20 L sample of oxygen gas exerts 53.5 kPa pressure at 5.0°C. What volume
will it occupy at STP?

Mary is conducting an experiment on how pollution affects plant growth. how can she ensure that her data are reliable?

Which terms are used to identify pure substances

For the reaction shown, calculate how many moles of no2 form when each of the following completely reacts. 2n2o5(g)→4no2(g)+o2(g) part a 1.0 mol n2o5 express your answer using two significant figures. nothing mol m o l request answer part b 5.4 mol n2o5 express your answer using two significant figures.