Cr(NO3)3-238g/mol Moles in 500ml, 2.08x500/1000=1.04mol. Mass of Cr(NO3)3=1.04x238=247.52g
To prepare a DPPH radical solution, dissolve DPPH powder in a solvent like methanol or ethanol to a concentration of around 0.1-0.2 mM. Mix well until the solution is completely dissolved. The solution can be stored in the dark and at low temperature to protect it from light.
To prepare a 50 mM Sulphuric acid solution, you would need to calculate the required volume of concentrated Sulphuric acid (typically 96-98%) needed to dilute in water to achieve the desired concentration. You can use the formula: C1V1 = C2V2, where C1 is the concentration of the concentrated acid, V1 is the volume of concentrated acid needed, C2 is the desired concentration (50 mM), and V2 is the final volume of the solution you want to prepare.
To prepare 0.05N HCl solution, you would need to calculate the amount of concentrated hydrochloric acid solution (typically 37% concentration) needed to dilute with water to get the desired concentration. Measure the appropriate volume of the concentrated acid and dilute it with the required amount of water to achieve a final volume of 1 liter.
To prepare 1000 ml of 0.02 M NaCl solution, you would need 40 ml of 5 M NaCl solution, which you can calculate using the formula C1V1 = C2V2, where C1 is the concentration of the stock solution, V1 is the volume of the stock solution needed, C2 is the desired concentration, and V2 is the final volume. The dilution factor in this case would be 25, as you are diluting the 5 M solution 25 times to achieve the desired 0.02 M concentration.
To prepare a stock solution, you need to measure a specific amount of solute and dissolve it in a specific volume of solvent to achieve a desired concentration. This concentrated solution can then be diluted as needed for use in experiments or applications.
it is very easy to prepare working solution from a stock solution we use the formula for this purpose which is: C1V1 = C2V2 C1 is the concentration of the stock solution V1 required volume from the stock solution C2 concentration of the working solution V2 volume of the working solution
To prepare a DPPH radical solution, dissolve DPPH powder in a solvent like methanol or ethanol to a concentration of around 0.1-0.2 mM. Mix well until the solution is completely dissolved. The solution can be stored in the dark and at low temperature to protect it from light.
To prepare a 50 mM Sulphuric acid solution, you would need to calculate the required volume of concentrated Sulphuric acid (typically 96-98%) needed to dilute in water to achieve the desired concentration. You can use the formula: C1V1 = C2V2, where C1 is the concentration of the concentrated acid, V1 is the volume of concentrated acid needed, C2 is the desired concentration (50 mM), and V2 is the final volume of the solution you want to prepare.
The concentration; to prepare a solution the compound must have a solubility.
To prepare 0.05N HCl solution, you would need to calculate the amount of concentrated hydrochloric acid solution (typically 37% concentration) needed to dilute with water to get the desired concentration. Measure the appropriate volume of the concentrated acid and dilute it with the required amount of water to achieve a final volume of 1 liter.
To prepare an aqueous iodine solution, first dissolve iodine crystals in water until the desired concentration is reached. Iodine is sparingly soluble in water, so it may take some time and stirring for complete dissolution. Always handle iodine with care and ensure proper ventilation when working with it.
To prepare 1 M CaI aqueous solution, dissolve 29.4 g in a total volume of 100 mls, or 294 g in a total volume of 1 liter.
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).
To prepare 1000 ml of 0.02 M NaCl solution, you would need 40 ml of 5 M NaCl solution, which you can calculate using the formula C1V1 = C2V2, where C1 is the concentration of the stock solution, V1 is the volume of the stock solution needed, C2 is the desired concentration, and V2 is the final volume. The dilution factor in this case would be 25, as you are diluting the 5 M solution 25 times to achieve the desired 0.02 M concentration.
Denpending of the concentrations, you can use only mechanical agitation and elevate temperature for 5 to 15 minutes.
To prepare a stock solution, you need to measure a specific amount of solute and dissolve it in a specific volume of solvent to achieve a desired concentration. This concentrated solution can then be diluted as needed for use in experiments or applications.
To prepare a 0.5 M acetic acid solution using a 2.5 M stock solution, you will need to dilute it. The formula for dilution is C1V1 = C2V2, where C1 is the initial concentration, V1 is the initial volume, C2 is the final concentration, and V2 is the final volume. Plugging in the values, you will need 20 ml of the 2.5 M stock solution to make 100 ml of a 0.5 M acetic acid solution.