How do particles in a sample of matter interact when the sample is in a different state (solid, liquid, and gas)?

What volume would 2.25 moles of ne has occupy at stp?

An object displaces 652 ml of water. the volume of the object is: 0.652 cm³ 6.52 cm³ 65.2 cm³ 652 cm³

Suppose that some of the compound spilled out of the crucible after it was heated. would that cause the percent by mass of water in the compound determined by the experiment to be too low, too high, or unchanged? briefly explain your answer.