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How you prepare 0.01M NaOH solution?

Updated: 8/11/2023
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11y ago

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Dissolve 40 grams of solid NaOH into enough water that it dissolves completely. Transfer this to a volumetric flask. Then add water until the volume of the solution is 1 liter. Care is needed as heat is generated which affects the volume. It is best to make up with water to about 2 cm short of the mark, allow to cool and then add the balance of the water.

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12y ago
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13y ago

DANGEROUS: add 40g of NaOH to measured cylinder and then add just enough of water to fill up to 1 Liter

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This is, in practice, the most DANGEROUS way to do. (Heat at dissolving 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 .

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15y ago

Add .4 grams solid NaOH to 1 liter of water. Molarity is moles per liter. Since the molar mass of NaOH is 40g/mol, a 1 M solution of NaOH would be 40 g (1 mole of NaOH) in 1 liter. One thousandth of this is .4 grams, giving 1 mM.

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10y ago

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

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11y ago

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)

= 40 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

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11y ago

0.01M NaOH is 0.01 moles of NaOH in 1L of water. The molecular weight of NaOH is 23 + 1 + 16 = 40g/mole, and 0.01 moles would have a mass of 0.40g (0.01moles x 40g/mole).

So, adding 0.40g NaOH to 1L water gives a solution of 0.01M NaOH.

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13y ago

in one liter measure out 272 grams of NaOH pellets.

i make 0.2 M NaOH and i weight out 27.22grams of NaOH pellets in liter of water. I hope the conversion is just a tenth.

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13y ago

1mol of NaOH = 40gr of NaOH

M=mol/l

1M = 1mol of NaOH/1l of H2O

1M of NaOH = 40gr of NaOH/1l of H2O

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14y ago

dissolve 40gms NaOH in one lit of water

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