Help please it’s due soon just calculate the atomic mass of lithium that’s all i need

What is the [oh-] in a solution with a poh of 3.90

What kind of ion is contained in salts that produce an acidic solution? a positive ion that attracts a proton from water a positive ion that releases a proton to water a negative ion that attracts a proton from water a negative ion that releases a proton to water

How can one make a supersaturated solution? (apex)