Question

Chem <.<

Answer 1

A solution is prepared by dissolving 3.5g of sodium hydroxide in water and adding water until the total volume of the solution is 2.5L. What are the OH- and H30+ concentrations?

Answer 2

convert g of NaOH to moles (divide by molar mass)
divide by liters to get molarity. this is conc. of OH since NaOH dissociated into Na + OH

to get H3O+, remember that [H3O+][OH-] = 10 ^ (-14)

Answer 3

I'll try and solve this later and tell you how it goes, I can't rn. Thank you though <3

Answer 4

So 3.5 divided by 39.997 right?
Then divide by 2.5 (L)?

Answer 5

I got H30=-.0349? I dont think it should be negative e.e