Josh prepares a solution by mixing sodium nitrate and water. to calculate the molarity of the solution, josh should calculate the moles of which substance, and why?
1 sodium nitrate, because it is the solvent
2 sodium nitrate, because it is the solute
3 water, because it is the solvent
4 water, because it is the solute

Plz choose one of the compounds from the table and explain how you know the numbers of atoms in your formula. is it possible for two different compounds to be made from the exact same two elements? why or why not? with a limited number of elements (less than 120 are known), does this mean we also have a small number of compounds or do we have a large number of compounds in this world?

How would you reduce the volume of gas

You encounter a solution that is acidic and you decide to test it by adding a small amount of a strong acid. the ph lowers slightly but is approximately unchanged, and still remains acidic. what can you say about the solution? a. it is a buffer solution. b. it is not a buffer solution it is a strong acid solution. d. the solution has been neutralized. e. the solution has excess acid present