A sample of propane gas, C3Hg, was collected over water at 22.5 °C and 630. torr. The volume of the wet gas is 4.39 L. What will be the volume of the dry propane at standard pressure?

Voldry propane: ? L

The chart shows the bid provided by four contractors to complete a job. which contractor is the most cost-effective?

The diagram below shows the different phase transitions that occur in matter. which arrow represents the transition in which dew is formed?

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.