Crystal Clear Lab Chlorine Dioxide Kit | Hydrochloric Acid 4-5% (HCl) : Sodium Solution for Travel 2 Part A and B, 4 Fl Oz, Pack of 2 4.5 out of 5 stars 343 2 offers from $42.95 Mass of HCl = 1180 * 36.5/100. Mass of HCl = 1180 * 36.5/100 = 430.7 g. Next, amount of HCl is determined by dividing HCl amount from molar mass of HCl. Amount of HCl = 430.7 g / 36.5 g mol -1. Mass of HCl = 11.8 mol. Because HCl amount is found in 1 dm 3 solution, that HCl amount become the concentration of HCl. Preparation of a zinc chloride solution 0.1 mol/l volumetric standard: Approx. 6.54 g of zinc (Volumetric Standard) are analy tically exactly weighed, transferred to an exactly weighed 1-l volumetric flask and dissolved in approx. 70 ml of hydrochloric acid 25 % GR for analysis overnight. The volumetric flask is then made up to approx. 1 l and What is the pH of Hydrochloric Acid? Just like other types of acids, the pH of hydrochloric acid varies depending on the concentration. For instance, commercially available muriatic acid has a pH level of between 1 and 2 at the concentration of 31.45%. The true measure of the strength of an acid is the dissociation constant, or pKa. This is the PART II: Solution preparation. Step 4: Transfer 918 ml water in a beaker/volumetric flask/measuring cylinder. Add 82 ml of 37% concentrated hydrochloric acid stock solution and mix it to prepare a homogeneous solution.Note: In case you have not calculated the amount of water to be added, just take ≈ 500 ml water in a volumetric flask Hydrochloric acid, 0.5N standardized solution is used for volumetric analysis in laboratories. This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. Start by pipetting 10.0 ml 0.1 N hydrochloric acid (HC1) into a flask to standardize NaOH. Add about 50 ml of water (not tap water) and three drops of methyl red indicator to the mix. Record the initial volume in a 25 ml buret filled with 0.1 N sodium hydroxide solution. Why is it critical to standardize a solution? Best Answer. weigh out 365g of HCl pellets and dilute to 1 liter to prepare the 10N HCl solution. Reasons:N is short for NORMAL SOLUTIONS, The definition of a NORMAL SOLUTION is a solution that hAIEI1p.