4.10 B. Titrate 20.0 ml of the solution with 0.1 M hydrochloric acid using 0.5 ml of phenolphthalein solution as indicator. Preparation of 1M Calcium chloride (CaCl2) Stock Solution 1 Test 13 ml buffer, 5 drops of gelatin solution, 0.2 ml CSF and 1 magnetic stirrer.. 3. prepare The GMW of HCl would be the atomic weight of H added to the atomic weight of Cl: H = 1 + Cl = 35. 4.fill the flask with water up to the 100ml mark (The … Transfer the chemical to a screw-cap bottle. How much of a 3.0 m solution of KOH will provide it? First, calculate the molar mass of NaCl which is the mass of a mole of Na plus the mass of a mole of Cl or 22.99 + 35.45 = 58.44 g/mol. KOH. To prepare a 1 M solution, slowly add 1 formula weight of compound to a clean 1-L volumetric flask half filled with distilled or deionized water. You need to calculate the mass in grams of KOH required to make 500 mL of a 0.5M KOH solution. To do this, first calculate the number of moles of KOH in the solution. Then use molar mass and moles to calculate mass Add water to the cylinder or flask to bring the volume to 100 ml. 85 g KOH 1 mole 1 kg solvent 1000 g solvent = 5.0 x 102 g solvent 56.11 g KOH 3.0 mole KOH 1 kg solvent 5.0 x 102 g solvent + 85 g KOH = 590 g solution 4.
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