Carbon dioxide =1 atom of carbon +2 atoms of oxygen

Afamily is one another name for a group on the table of elements.

Which formula can be used to calculate the molar mass of ammonia (nh3)? molar mass of n + molar mass of h 3 × molar mass of n + molar mass of h molar mass of n + 3 × molar mass of h 3 × molar mass of n + 3 × molar mass of h

If 1.8 l of water is added to 2.5l of a 7.0 m koh solution, what is the molarity of the new solution