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How do you make up 1.5 N Potassium Dichromate in 1 liter solution?

- Dry potassium dichromate (standard certified quality, from NIST - SRM 136f or from another supplier), using a platinum dish or crucible. - Follow the mode of drying (generally 1 hour at 120 0C in an oven) indicated by the supplier. Place the potassium dichromate in an exsicator. - Prepare a volume of demineralized or distilled water - Weight 73,546 25 g potassium dichromate in a platinum dish calcined to a constant weight; apply a correction for the flotability of the air and the purity of the dichromate. Use a metrologically checked microbalance. - Place carefully the potassium dichromate in a 1 000 mL volumetric flask, dried and washed - Add about 900 mL water - Place the volumetric flask in a thermostat at 20 0C; after approx. 30 min add the water exactly to the mark. - Stirr the content of the volumetric flask; place a clear label on the flask (concentration, material, date of preparation, operator's name).


Barium chloride is added to potassium chloride What will be colour of the final solution?

The final solution color will depend on the concentration of barium chloride and potassium chloride. However, in general, barium chloride is white and potassium chloride is colorless, so the final solution will likely appear white or colorless.


What factors may influence the grey balance and colour in the final result?

the final result influence the grey colour


When a dichromate ion acts as an oxidizing agent chromium's oxidation state drops from?

The dichromate ion is Cr2O72- and the chromium is in oxidation state 6. When it acts as an oxidizing agent it usually reduces from 6 to 3.2Cr2O72- -----> 4Cr3+ + 7O2 + 16e-See the related link for more information.


What will be the initial and final color when dipped in lemon juice?

what is the initial and final colour of the lemon juice


What colour is Spain wearing for final?

They wear red for the finals.


What colour is Spain wearing for the final?

blue with red and yellow


Was the 1966 world cup final broadcast in colour on tv?

yes


How do you ensure that the final alcohol bath is free of water?

To ensure the final alcohol bath is free of water, one can use azeotropic distillation or molecular sieves to remove any remaining water molecules from the alcohol. Azeotropic distillation involves a method that uses a co-solvent to form an azeotrope that can be distilled to separate the water from the alcohol. Molecular sieves can selectively adsorb water molecules from the alcohol, leaving behind a water-free final product.


Did bennolong die because he wanted alcohol?

Benalong had a problem with alcohol in his final years as well as alienation from his own people.


How do you manufacture potassium stearate?

Potassium stearate is typically manufactured by reacting stearic acid with potassium hydroxide in a controlled environment. The reaction forms potassium stearate, which is then purified and dried to obtain the final product. The process may involve additional steps such as filtration and crystallization to ensure the purity of the potassium stearate.


Are sodium and potassium the final go signal in muscle contraction?

an increase in intracellular calcium ion levels