How can I make 1.0 molar Solution of NaOH?

7 ANSWERS

1. amomipais82
   

   Hi,
   First of all,you need to understand what molarity and normality are.
   Molarity refers to the number of molecules of a substance in a solution;  a
   1M solution contains 1 mole (6.02 x 10^23 molecules or particles) of the
   substance in 1 liter of solution.  Normality refers to compounds that have
   multiple chemical functionalities, such as sulfuric acid, H2SO4:  a 1M
   solution of H2SO4 will contain only one mole of H2SO4 in 1 liter of
   solution, but if you titrate the solution with base, you will find that it
   contains two moles of acid.  This is because a single molecule of H2SO4
   contains two acidic protons.  Thus, a 1M solution of H2SO4 will be 2N.
   
   Now, for your specific question:  NaOH contains only one significant
   chemical functionality, which is the basic hydroxide, OH-.  So, for NaOH
   solutions, molarity and normality will be the same thing.  So, a 1.0 N
   solution of NaOH in water is also a 1.0 M solution of NaOH in water, and a
   0.1 N solution of NaOH in water is a 0.1 M solution of NaOH in water.
   
   How do you make these?  The first thing you need to know is the mass of a
   mole of NaOH.  This is just its molecular weight: 40.0 g/mol.  (That's what
   a molecular weight means:  the mass in grams of one mole of the substance.)
   So, to make a 1.0 M (= 1.0 N) solution of NaOH in water, you will want to
   weigh out 40.0 grams of NaOH, dissolve it in about 0.8 liters of water, and
   then add water to the solution to take the total volume up to exactly 1.0
   liters.  You would do the same thing to make a 0.1 M (= 0.1 N) solution:
   weigh out 0.1 mole of NaOH (= 4.0 g), dissolve it in water, and add enough
   water to make the total volume equal to exactly 1 liter.
   
   If you don't want exactly on liter of these solutions, then you need to
   change the amounts by the same factor:  if you need 0.5 liters of a 1.0 M
   solution, you use 0.5 moles of the substance and enough solvent to make the
   solution volume exactly 0.5 liters.
   
   Thanks

   Report (0) (1)  |   12 years, 7 month(s) ago  

2. amomipais82
   

   Hi,
   First of all,you need to understand what molarity and normality are.
   Molarity refers to the number of molecules of a substance in a solution;  a
   1M solution contains 1 mole (6.02 x 10^23 molecules or particles) of the
   substance in 1 liter of solution.  Normality refers to compounds that have
   multiple chemical functionalities, such as sulfuric acid, H2SO4:  a 1M
   solution of H2SO4 will contain only one mole of H2SO4 in 1 liter of
   solution, but if you titrate the solution with base, you will find that it
   contains two moles of acid.  This is because a single molecule of H2SO4
   contains two acidic protons.  Thus, a 1M solution of H2SO4 will be 2N.
   
   Now, for your specific question:  NaOH contains only one significant
   chemical functionality, which is the basic hydroxide, OH-.  So, for NaOH
   solutions, molarity and normality will be the same thing.  So, a 1.0 N
   solution of NaOH in water is also a 1.0 M solution of NaOH in water, and a
   0.1 N solution of NaOH in water is a 0.1 M solution of NaOH in water.
   
   How do you make these?  The first thing you need to know is the mass of a
   mole of NaOH.  This is just its molecular weight: 40.0 g/mol.  (That's what
   a molecular weight means:  the mass in grams of one mole of the substance.)
   So, to make a 1.0 M (= 1.0 N) solution of NaOH in water, you will want to
   weigh out 40.0 grams of NaOH, dissolve it in about 0.8 liters of water, and
   then add water to the solution to take the total volume up to exactly 1.0
   liters.  You would do the same thing to make a 0.1 M (= 0.1 N) solution:
   weigh out 0.1 mole of NaOH (= 4.0 g), dissolve it in water, and add enough
   water to make the total volume equal to exactly 1 liter.
   
   If you don't want exactly on liter of these solutions, then you need to
   change the amounts by the same factor:  if you need 0.5 liters of a 1.0 M
   solution, you use 0.5 moles of the substance and enough solvent to make the
   solution volume exactly 0.5 liters.
   
   Thanks

   Report (4) (1)  |   12 years, 7 month(s) ago  

3. Guest4267
   

   Just dissolve 40 grams oh NaOH on water.

   Report (2) (3)  |   12 years, 7 month(s) ago  

4. Guest2444
   

   how do i make 0.1 molar solution of NaOH from 1 molar solution

   Report (0) (3)  |   12 years, 7 month(s) ago  

5. Guest1813
   

   formula of the molarity = M * Mol weight * volume to be made
                           m = 0.1 , Mol wt = 40 , volum to be mad = 1000 or 500
   put the valus in for   = 0.1 * 40 *1000 = 400g take and dissolve in sufficent volume
                           = 0.1 * 40 * 1000 = 200 g take and dissolve in sufficinet volume
             hope that will be the answer...

   Report (0) (0)  |   12 years, 7 month(s) ago  

6. Guest3869
   

   we have formula =
        M = M*mol wt*1000/1000
   so
            1*40*1000/1000
            = 40g
           dissolve 40g of NaOH in 1000ml to give 1M solution.

   Report (1) (0)  |   12 years, 7 month(s) ago  

7. Guest4204
   

   To make a 1 Molar solution of NaOH, you would put 40.01 grams of NaOH into a volume of water and then add water to reach 1 liter total volume.

   Report (0) (0)  |   12 years, 7 month(s) ago