We used Phenolphthalein as our indicator. Look up other type of indicator and provide pH range where it changes color.

10.00 mL of phosphoric acid (H3PO4) are titrated with 0.3000 M sodium hydroxide. 12.00 mL of the sodium hydroxide solution are used in this experiment. Determine the molarity of phosphoric acid.

A student was titrating a solution of hydrazine (H₂NNH₂) with a nitric acid solution. Determine the pH at a particular point in the titration. Do this by constructing a BCA table, constructing an ICE table, writing the equilibrium constant expression, and use this information to determine the pH. Complete Parts 1-4 before submitting your answer. NEXT > A 40.0 mL of 0.200 M H₂NNH₂ was titrated with 10.0 mL of 0.100 M HNO3 (a strong acid). Fill in the ICE table with the appropriate value for each involved species to determine the moles of reactant and product after the reaction of the acid and base. You can ignore the amount of liquid water in the reaction. Before (mol) Change (mol) After (mol) 6.00 x 10 Initial (M) Change (M) Equilibrium (M) -X 0.140-x 0 -6.00 x 10³ 0 1 1 0.200 + x H₂NNH₂(aq) 0.200 0.175 + x 7.00 x 10³ H₂NNH₂(aq) + 2 0.200 0.200 - x 0.175-x 0.100 2 -7.00 x 10" A student was titrating a solution of hydrazine (H₂NNH₂) with a nitric acid solution. Determine the pH at a…

A 1.00 liter solution contains 0.34 M nitrous acid and 0.44 M potassium nitrite. If 0.110 moles of barium hydroxide are added to this system, indicate whether the following statements are true or false. (Assume that the volume does not change upon the addition of barium hydroxide.) VA. The number of moles of HNO2 will decrease. vB. The number of moles of NO2 will remain the same. C. The equilibrium concentration of H30+ will remain the same. D. The pH will decrease. E. The ratio of [HNO2] / [NO2] will decrease.