In the laboratory you are given the task of separating Ba2+ and Cu2+ ions in aqueous solution.

By titration, it is found that 19.1 mL of 0.157 M NaOH(aq) is needed to neutralize 25.0 mL of HCl(aq). Calculate the concentration of the HCI solution.

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In the laboratory you are given the task of separating Ba 2+ and Co2+ ions in aqueous solution. For each reagent listed below indicate if it can be used to separate the ions. Type "Y" for yes or "N" for no. If the reagent CAN be used to separate the ions, give the formula of the precipitate. If it cannot, type "No" Y or N Reagent Formula of Precipitate if YES 1. Na2CO3 2. K2SO4 3. NaI

A 1.22 g sample of KHP is used to titrate a NaOH solution.  A student finds that it requires 15.00 mL of the NaOH solution to reach the end point.  What is the molarity of the NaOH solution?

An analytical chemist weighs out 0.185 g of an unknown monoprotic acid into a 250 mL volumetric flask and dilutes to the mark with distilled water. She then titrates this solution with 0.2000 M NAOH solution. When the titration reaches the equivalence point, the chemist finds she has added 9.5 mL of NaOH solution. Calculate the molar mass of the unknown acid. Be sure your answer has the correct number of significant digits. g x10 mol

You are preparing standard acid and base solutions for the laboratory, using potassium hydrogen phthalate (KHC₈H₄O₄, abbreviated KHP) as the primary standard. KHP (molar mass = 204.22 g/mol) has one acidic hydrogen. You prepared solutions of both NaOH and HCl. It took 22.65 mL of the NaOH solution to titrate (react exactly with) 1.55 g KHP. It then took 32.35 mL of HCl solution to titrate 25.00 mL of the NaOH solution. What is the molarity of the HCl solution?

If you mix together 5 drops of NiSO4 and 5 drops of Ba(NO3)2 a precipitate forms. Write the   equation for this reaction and identify the insoluble compound and spectator ions.

By titration, it is found that 39.1 mL of 0.161 M NaOH(aq) is needed to neutralize 25.0 mL of HCl(aq). Calculate the concentration of the HCl solution.

In the laboratory, you are given the task of separating Ba2+ and Co2+ ions in an aqueous solution. For each reagent listed below, indicate if it can be used to separate the ions. Type "Y" for yes or "N" for no. If the reagent CAN be used to separate the ions, give the formula of the precipitate. If it cannot, type "No" Y or N Reagent Formula of Precipitate if YES   HCl  Na2S  K2CO3