How will you prepare 1M NaOH and 0.5 of sodium carbonate
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If you need to prepare roughly one liter of 1 M NaOH solution, you dissolve the molar mass of NaOH (40.0 g) using distilled water in a beaker, then transfer this solution to a one liter volumetric flask and rinse the beaker with distilled water several times and put it in the volumetric flask, and finally fill the volumetric flask with distilled water to the mark. To know the exact molarity of NaOH, you must standardize it with a primary standard material like potassium hydrogen phthalate (KHP). Now this solution is called secondary standard solution and must be frequently standardized before use, because its molarity changes with time and reduces as it reacts with the atmospheric CO2 when you open it from time to time. Then after that you can use it to find the molarity of other unknown acid solutions or the molar mass of an unknown acid.
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Explanation:
If you need to prepare roughly one liter of 1 M NaOH solution, you dissolve the molar mass of NaOH (40.0 g) using distilled water in a beaker, then transfer this solution to a one liter volumetric flask and rinse the beaker with distilled water several times and put it in the volumetric flask, and finally fill the volumetric flask with distilled water to the mark. To know the exact molarity of NaOH, you must standardize it with a primary standard material like potassium hydrogen phthalate (KHP). Now this solution is called secondary standard solution and must be frequently standardized before use, because its molarity changes with time and reduces as it reacts with the atmospheric CO2 when you open it from time to time. Then after that you can use it to find the molarity of other unknown acid solutions or the molar mass of an unknown acid.