Find the mass of the compound 2Bi(NO3)3
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What is the h+ concentration for an aqueous solution with poh = 4.01 at 25 ∘c? express your answer to two significant figures and include the appropriate units.

How do the energy differences between the higher energy levels of an atom compare with the energy difference between the lower energy level of the atom

Find the mass in grams of hydrogen gas produced when 14.0 moles of hcl is added to an excess amount of magnesium.