A gas under a pressure of 74 mmHg and at a temperature of 348 K occupies a 500.0-L container. How many moles of gas are in the container?

1.7 moles
7.9 moles
13 moles
59 moles

Can someone me with questions 12 and 13 plz.

The table describes how some substances were formed substance 19 description formed by boiling pure water formed by combining three hydrogen atoms to every nitrogen atom formed by adding 5 g of sugar to 1 l of water formed by compressing carbon under high pressure based on the given descriptions, which substance is most likely a mixture?

One way that radioactive waste is treated is by burying it in repositories. the repositories are found only in states with very low populations. true or false? a. trueb. false(also i meant to put high school but it put down middle school instead)