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How do you prepare 0.1N NaOH solution?
DANGEROUS: add 40g of NaOH to measured cylinder and then add just enough of water to fill up to 1 Liter Added: This is, in practice, the most DANGEROUS way to do. (Heat at d…issolving NaOH may 'boil up' the added water). Theoretically however it is correct. Best way: First put about 900 mL water in a glass beaker, add 40 g NaOH to it while stirring the liquid. Then after complete dissolution you eventually poor it into a volumetric glass 1000 mL cylinder or 1000 mL flask and fill it up to the 1 L mark. However this will never give an analytically precise 1.000 M NaOH solution because of the hydrating and carbonating properties of NaOH in open air. So it isn't necessary to follow these very precise procedures and measurements: you may skip the volumetric cylinder or -flask. Instead you can fill it up in the glass beaker to 1 L, if it has an 1.0 L.-mark, or even put it on a weighting device to fill up to 1.0 kg .
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.
0.4 g of NaoH in 100 mL std flask and make up with distilled water.
By dilution, but this depends totally on: How much litres you want to have. (suppose V1 Litre) The concentration of the UNdiluted (more concentrated) HCl you have to start w…ith. (suppose N2 eq/L HCl) Then, with V1 * N1 = V2 * N2, you can calculate V2, which is the amount of undiluted HCl solution (also in Litre, as you've already chosen with units for V1): V2 = [V1 * 0.1] / N2
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Accurate caustic soda solution is rarely made-up because in a lab it would require use of volumetric flasks, and they are not used for caustic soda. Weigh required …amount of NaOH pellets (40g per litre), add to half the final volume of water and dissolve. Top-up to the required volume. Titrate against a convenient standard, usually a strong acid, usually sulphuric, correct concentration of the NaOH as required (unless you have been sloppy, it will not be too concentrated).
Dissolve 20g of NaOH in about 500 mL of water and dilute with water to 1000mL. Mix well.
According to Kodak: For a 0.1 Normal (0.1N) solution of iodine (I2), in 1 L volume flask, dissolve 40 g potassium iodide in 25 mL water. Next, add 12.7 g iodine (I2) and dil…ute to 1 L. Note that a 0.1N solution is not the same as a 0.1M solution. For iodine 0.1N is 0.05M.
using the formula mole=mass/molar mass,u can have the mass of NaOH that is to be dissolve in 1000dm^3 solution. mole=1mol molar mass=23+16+1=40g/mol … therfore, mass=mole *molar mass mass=1mol*40=40g dissolve 40g of NaOH pallets in 1000dm^3
Take 10 ml of 1 N NaOH and dilute to 1000 ml with D.I. H2O
1 molar solution means 1 mol of a substance (solute) per litre of solution. 1 mol = Molecular weight of the Substance Molecular Weight of NaOH = 23 (Na) + 16 (O) + 1 (H) = 4…0 gm Hence, 1 mol NaOH = 40 gm NaOH 1 molar NaOH Solution = 40 grams NaOH dissolved in 1 litre water 0.01 molar NaOH Solution = 0.4 grams NaOH dissolved in 1 litre water
Weigh 40 g NaOH.Put this NaOH in a dry 1 L volumetric flask.Add slowly 900 mL distilled water and stir until dissolved.Put the flask in a thermostat at 20 0C and maintain for …1 hour.Add distilled water up to the 1 L-mark and mix the closed bottle.Standardize the solution by titration with oxalic acid, potassium hydrogen phtalate, etc.
to prepare 1N we have to dilute 40gms of NaOH in 1 litre of water as for NaOH normality =molarity so to prepare 0.1N NaOH we have to dilute 4gms of NaOH in 1 litre of water..
74.5513 g/mol KCl * * 1 mol/eq * 0.1 eq/L = 7.455 g/L So accurately weight 7.455 g dry, analytical grade KCl and dissolve in volumetric flask of exact 1.000 Liter and fill u…p with water to the 1L-mark, close and carefully mix by repeated inversion. In this way you can get an exact 0.1000 N KCl standard solution.
pipette out 8.5 ml perchloric acid in to 500 ml acetic acid and add 21 ml of acetic anhydride make up to volume to 1000 ml with acetic acid*. * Let this solution stand for on…e day and check the water content
standardization of NaoH