Find the [OH-] given the following [H+]. a. [H+] = 1.0x10-5M
b. [H+] = 6.3x10-7M

Find the [H+] given the following [OH-].
a. [OH-] = 5.7x10-4M
b. [OH-] = 8.6x10-11M

What overall charge must all compounds have

Which element has the lowest electronegativity? calcium(ca) gallium(ga) selenium(se) bromine(br)

Aroom with dimensions 7.00m×8.00m×2.50m is to be filled with pure oxygen at 22.0∘c and 1.00 atm. the molar mass of oxygen is 32.0 g/mol. how many moles noxygen of oxygen are required to fill the room? what is the mass moxygen of this oxygen?