To prepare a 250 mM solution of sucrose, you would need to weigh out a certain amount of sucrose (table sugar) and dissolve it in a specific volume of water. The exact amount of sucrose needed will depend on its molar mass (342.3 g/mol). You can calculate the amount of sucrose required using the formula: moles = (desired concentration in mM) x (volume in L).
N should be M, meaning number of mole (N) per litre.
Concentration equals the number of mole per litre, or simply C=N/V.
We know the concentration is 0.1 mol/L
One mole of sucrose = 342g (from the molecular formula C12H22O11)
so 0.1 mol = 34.2g.
To make a 0.1 M sucrose solution, mix 34.2 grams of sucrose into every litre of water.
molarity (M) = moles/litre of solution
To make a 1.0 M sucrose solution, you need the molar mass of sucrose. C12H22O11
(12x12.0) + (22x1.0) + (11x16.0) = (according to wikipedia 342.30 g/mole)
Take the 342.20 grams of sucrose and put it into a graduated cylinder and then fill to the 1.0 L mark with water.
To prepare a 10 mm solution, you would dilute the 4 M stock solution. Use the formula C1V1 = C2V2, where C1 is the concentration of the stock solution (4 M), V1 is the volume of stock solution needed, C2 is the desired final concentration (10 mM), and V2 is the final volume of the solution. Calculate the volume of stock solution needed to achieve the desired concentration, then add solvent (usually water) to reach the final volume.
To prepare 25 mM NH4HCO3, first calculate the amount of NH4HCO3 needed based on its molecular weight. Weigh out the calculated amount of NH4HCO3 and dissolve it in the appropriate volume of water to make a 25 mM solution. Finally, adjust the final volume with water if necessary.
250 mm is equal to 0.25 meters. This conversion can be done by dividing the millimeter measurement by 1000 (since there are 1000 mm in a meter).
show solution convert 0.015 km to mm
To dilute a 100 mM solution to 5 mM, you would need to dilute it by a factor of 20. To do this, you can add 19 parts of a suitable solvent (such as water) to 1 part of the 100 mM solution. Mix thoroughly to ensure a homogeneous 5 mM solution.
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To change the vapor pressure of water to 755 mm Hg at 100°C, you would need to add sucrose to create a solution with a lower vapor pressure than pure water. The amount of sucrose needed to achieve this specific vapor pressure depends on the molal concentration of the sucrose solution and its van't Hoff factor. To calculate this accurately, you would need additional information about the sucrose-water system.
To prepare 100 mM phosphoric acid solution, you can dilute a more concentrated phosphoric acid stock solution to the desired concentration by adding the appropriate volume of water. Calculate the volume of the stock solution needed using the dilution formula: C1V1 = C2V2, where C1 is the concentration of stock solution, V1 is the volume of stock solution needed, C2 is the desired concentration (100 mM), and V2 is the final volume of the solution.
A water solution containing 50 mM tris(hydroxymethyl)aminomethane and 150 mM sodium chloride has a pH of 7,6.
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 a 1 mM DPPH radical solution, dissolve 3.94 mg of DPPH (2,2-diphenyl-1-picrylhydrazyl) in 1 liter of solvent (typically methanol or ethanol). This will result in a concentration of 1 mM (molecular weight of DPPH is approximately 394.3 g/mol).
To prepare a 10 mm solution, you would dilute the 4 M stock solution. Use the formula C1V1 = C2V2, where C1 is the concentration of the stock solution (4 M), V1 is the volume of stock solution needed, C2 is the desired final concentration (10 mM), and V2 is the final volume of the solution. Calculate the volume of stock solution needed to achieve the desired concentration, then add solvent (usually water) to reach the final volume.
250 mm = 25 centimetres.
1 m = 1000 mm 250 x 1000 = 250 000 mm
250 mm = 2.5 decimeters.
1000 mm = 1 m so 250 mm = 250/1000 = 0.25 metres. Simple!
To prepare 25 mM NH4HCO3, first calculate the amount of NH4HCO3 needed based on its molecular weight. Weigh out the calculated amount of NH4HCO3 and dissolve it in the appropriate volume of water to make a 25 mM solution. Finally, adjust the final volume with water if necessary.