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Select the valid ways to make an ammonia/ammonium buffer for use in the laboratory. Mix some volume of 1MNH_(3) with half as much 1MHCl .

Select the valid ways to make an ammonia/ammonium buffer for use in the laboratory. Mix some volume of 1MNH_(3) with half as much 1MHCl . Mix equal volumes of 1MNH_(3) and 1MNH_(4)^(+) . Mix equal vol

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