Density: Measuring Mass and Volume
What do you see?

You are performing an experiment in a lab to attempt a new method of producing pure elements from compounds. the only problem is that you do not know what element will form. by your previous calculations you know that you will have 6.3 moles of product. when it is complete, you weigh it and determine you have 604.4 grams. what element have you produced?

How would the number of moles (n) of o2 change if the atmospheric pressure doubled but all other variables stayed the same

How is the atomic number of a nucleus changed by alpha decay