After adding 6M HCl to the unknown solution, the resulting solid is separated from the liquid. Hot water is next added to the solid. Not mixing the solid real well with the hot water could result in false-positive results for which ion(s)?

⚫ To 3 mL of 0.10 M HC_H₂O2 add a drop of methyl orange, then add 1 M NaC HO₂ a few 3 2 3 drops at a time, with mixing. Explain your observations in terms of the equilibrium equation and the common ion effect. • Write the equilibrium equation and explain your observations in terms of the equilibrium equation and the common ion effect in your notebook.

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Question 9 of 9 Šubmit Determine the pH at the point in the titration of 40.0 mL of 0.200 M H,NNH, with 0.100 M HNO, after 10.0 mL of the strong acid has been added. The value of Kb for H,NNH, is 3.0 x 10°. 1 2 NEXT> Use the table below to determine the moles of reactant and product after the reaction of the acid and base. H,NNH,(aq) + H*(aq) H,NNH,"(aq) Before (mol) Change (mol) After (mol) CRESET 0.200 0.100 1.00 x 103 -1.00 x 103 2.00 x 103 -2.00 x 10* 6.00 x 103 -6.00 x 103 7.00 x 103 -7.00 x 103 8.00 x 103 -8.00 x 103