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How can prepare ethanolic solution?
To prepare an ethanolic solution, simply mix ethanol (commonly known as alcohol) with a solvent such as water. The ratio of ethanol to water will determine the concentration of the solution. Be sure to measure the quantities accurately and mix well to ensure homogeneity.
Why pH is 10 for finding the hardness of water .something related to protonation?
A pH of 10 is often used when testing water hardness because it ensures that all carbonates and bicarbonates present in the water are fully ionized, allowing for accurate measurement of the total hardness. At this pH, the calcium and magnesium ions in the water form insoluble precipitates, which can be quantified to determine the hardness level. The high pH also helps to minimize interference from other ions in the water on the hardness measurement.
What are the two form of hardness found in water?
Hardness in water is usually characterised as temporary or permanent. Both are due to the presence of calcium or magnesium ions. If they are present as the hydrogen carbonate, when the water is boiled this is converted to the carbonate which precipitates out as a solid, leaving water which is no longer hard, so this is called temporary hardness. If they are present as the sulfate the solution is unaffected by boiling, and this is called permanent hardness.
How can you prepare 50mm glucose?
To prepare a 50mm glucose solution, you would need to dissolve 9g of glucose in enough water to make 100mL of solution. This would give you a solution with a concentration of 50mm (millimolar).
How do you we prepare cresol with soap solution?
To prepare cresol with soap solution, add cresol to a container of water, then add soap and mix gently. The soap will help to solubilize the cresol in water, forming a soap solution with cresol dissolved in it. It is important to follow proper safety precautions when handling cresol, as it can be irritating to the skin and eyes.
How do you estimate hardness of water?
The water supplier can provide you the details on hardness level if you are on municipal water systems, If you are using private water then you can get tested in laboratories. You can even measure it with water hardness testing kits which you need to purchase.
How can prepare .01N KBr solution?
To prepare a 0.01N KBr solution, dissolve 0.74g of KBr in 1 liter of water. This will give you a solution with a molarity of 0.01N for KBr.
A corrosion technologist pipetted a 100 ml hard water sample and titrated it with 37.64 ml of 0.01 m edta solution for a total hardness endpoint and 29.32 ml of 0.01 m edta solution for a calcium?
The total hardness of the water sample is calculated as 37.64 ml of 0.01 M EDTA solution. The calcium hardness is calculated as the difference between the total hardness and the magnesium hardness, which is 29.32 ml of 0.01 M EDTA solution. It's important to conduct proper titration techniques to ensure accurate results for water quality assessment.
Why is ammonia-sodium chloride buffer solution is added in the determination of total hardness of water?
Ammonia-sodium chloride buffer solution is added in the determination of total hardness of water to prevent interference from other ions that may be present in the water sample. It helps to maintain a constant pH level, ensuring the validity of the hardness test results. Additionally, the buffer solution can help stabilize the complexation reactions between the calcium and magnesium ions in the water sample with the chelating reagent used in the hardness test.
How do you prepare 2 ppm solution of nickel nitrate?
To prepare a 2 ppm solution of nickel nitrate, you would dissolve 2 grams of nickel nitrate in enough water to make 1 liter of solution. This will result in a solution where there are 2 parts of nickel nitrate for every 1 million parts of water.
Who would you prepare 2.6L of a 1200 solution given 12 percent solution sterile water?
pharmacist
How can we prepare litmus solution in lab?
To prepare a litmus solution in the lab, you can dissolve powdered litmus in distilled water to create a purple solution. Stir the mixture well to ensure the litmus is fully dissolved. Adjust the concentration of the solution by adding more litmus or water as needed.
How can prepare ethanolic solution?
To prepare an ethanolic solution, simply mix ethanol (commonly known as alcohol) with a solvent such as water. The ratio of ethanol to water will determine the concentration of the solution. Be sure to measure the quantities accurately and mix well to ensure homogeneity.
How can one prepare a saturated sodium bicarbonate solution?
To prepare a saturated sodium bicarbonate solution, add sodium bicarbonate (baking soda) to water until no more can dissolve. This creates a solution where the maximum amount of sodium bicarbonate is dissolved in the water.
Why pH is 10 for finding the hardness of water .something related to protonation?
A pH of 10 is often used when testing water hardness because it ensures that all carbonates and bicarbonates present in the water are fully ionized, allowing for accurate measurement of the total hardness. At this pH, the calcium and magnesium ions in the water form insoluble precipitates, which can be quantified to determine the hardness level. The high pH also helps to minimize interference from other ions in the water on the hardness measurement.
What are the two form of hardness found in water?
Hardness in water is usually characterised as temporary or permanent. Both are due to the presence of calcium or magnesium ions. If they are present as the hydrogen carbonate, when the water is boiled this is converted to the carbonate which precipitates out as a solid, leaving water which is no longer hard, so this is called temporary hardness. If they are present as the sulfate the solution is unaffected by boiling, and this is called permanent hardness.
What is the difference between water and ecowater?
The main difference between water and ecowater is the hardness rating difference. For water testing and filter options, see your local water specialist.
