How to find concentration of HCl in titration What unknown quantity can be calculated after a titration? What is the molar concentration of sucrose? What would be the concentration of a solution made by adding 250.0 mL of water to 45.0 mL of a 4.2 M KOH solution?
We did an experiment using dilute hydrochloric acid & sodium thiosulphate and I asked why we didn't need to wear gloves. I was told it was because the HCl was very diluted and therefore not harmful if you got it on your hands. The concentration of HCl(aq) was 2M (ie, I think, 73g...
Since the titration volume contains F2 as well as F, this latter result demonstrates the secondary importance of the competing reaction, Cl + F2 → ClF + F. Accordingly, F-atom concentration may be determined in the presence of F2 by addition of an excess amount of HCl, thereby converting ...
Thanks for the reply. Now that you mention it, if I performed a strong acid/strong base titration with 0.0001M HCl, the titration curve would give me a value of 3.1 as the pKa of HCl which is wrong. I don't understand though, how the assumption of neglecting dissociation relates to ho...
What is the pH at the equivalence point in a titration of0.2MNH3(aq)with0.02MHBr(aq). For the ammoniaKb=1.8×10−5 View Solution Which of the following solutions when added to 1L of a 0.1 MCH3COOHor in the pH of the solutionKa=1.8×10−5forCH3COOH?
39.75 mL / (1000 mL/L) = 0.03975 L of NaOH Step 3 Use the liters of titrant necessary to reach the end point of the titration and the concentration of the titrant to determine the moles of titrant used in the process. The concentration of the NaOH was 0.1044 mol/L, then ...
In a titration experiment, 15.0 mL of 0.146 M H_2SO_4 is titrated and neutralized by 13.1 mL of a NaOH solution. What is the concentration (molarity) of the NaOH solution? What is the molarity of a hydrochloric acid solution prepa...
How can you determine the concentration of solution after titration? How do you calculate the concentration of an unknown solution when you know the concentration of the same solution but diluted? How to find out the volume in mL of 0.5 g/L stock solution needed to make...
25.03 ml of 0.1427 M NaOH and 2.31 ml of 0.1241 M HCl are used in the titration to a bromocresol green endpoint. A blank run with a suitable mass of sodium tartrate required 0.43 ml of the 0.1241 M HCl to attain the same endpoint. Find the concentration of the tartaric acid in mol/...
Briefly, the dry sample (1 g) was digested in sulfuric acid with a catalyst at 420 °C for 1 h. Then, the ammonium ions were converted into ammonia using K-375 automatic Kjeldahl nitrogen analyzer (BUCHI Labortechnik AG, Shanghai, China). Finally, the ammonia was quantified by titration ...