0ml from a 2.0 m solution of hcl is diluted to 10.0 ml using deionized water. what is the concentration of the new solution?

The concentration would remain at 2.0m. The problem states that 0 ml from the 2.0 m solution is diluted, therefore implying that none of it was diluted. Therefore, the level of concentration of the new solution would be the same as before.

30litre of li2o is 1.0002mole approximately 1 mole