6. Calculate [H3PO4], [H2PO4-], [HPO4²-], [PO4³-], [H3O+], [OH-], and [Cl-] in a mixture that is initially 0.100 M H3PO4 and 0.010 M HCl. [CI-]:_ [H3O+]: [OH-]: [H3PO4]: [H2PO4-]: [HPO42-]: [PO4³-]:

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