A college chemistry student is solving this problem: "Determine the initial volume, in m³, of a gas with a starting temperature of 0°C. The final temperature of the gas is 200°C, with a final volume of 145 m3." || The student says that their calculator gave them an "Undefined" error. They tried again, and got the same error. What is the student forgetting to do?

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A:

Q: What does NOT change when a solution is diluted by the addition of solvent? Select the correct respo...

A: As per bartleby guidelines I answered only first question so please don't mind.Thanks in advance. 

Mole Concept

Mole concept is a method to determine the amount of any substance that consists of some elemental particles using a grouping unit called ‘mole’. The mole concept enables one to handle the large amount of small elementary particles. The mole concept can be used in many calculations related to mole calculation, molar amount, mole ratio, and so on, which are significant in chemistry.