HOW TO CALCULATE WEIGHT OF THE COMPOUND ACCORDING TO millimoles


HOW TO CALCULATE WEIGHT OF THE COMPOUND ACCORDING TO millimoles
1.                                We required percentage of element in Compound.
                          How to calculate %age of element in any Compound

                          %age of any element = Number of Molecule x Mol.Wt of Element x 100
                                                                                     Mol.Wt of Compound

                         For Example: SODIUM CHLORIDE (NaCl)
                         Is made from One Sodium and One Chloride
                         Mol.Wt of Sodium Chloride is 58.44
                         Mol.Wt of Sodium : 22.99
                         %age of Sodium =            Number of Molucle x  Mol.Wt of Sodium x100
                                                                                     Mol.Wt of Sodium Chloride
                                                       =            1 x 22.99 x 100
                                                                            58.44
                                                       =            39.34 % of Sodium
                         Mol.Wt of Chloride: 35.45
                         %age of Chloride =           Number of Molucle x Mol.Wt of Chloride x100
                                                                                     Mol.Wt of Sodium Chloride
                                                         =           1 x 35.45 x 100
                                                                             58.44
                                                         =           60.66 % of Chloride
                         We can calculate of %age of any element in any Compound by above manner
2.                               Calculation of milimole = Mol.Weight/1000         
          
                         IF WE REQUIRED 65 mmol OF SODIUM
                        Than we calculate the weight of compound(Sodium Chloride) from following                                Formula
                                                Mol.weight of Required element x Required mmoles x 100
                                                            1000 x %age of element in Compound
                                                                 
                                                                   =    22.99 x 65 x100
                                                                           1000 x 39.34
                                                                   =    3.7985 g of Sodium Chloride  
                         IF WE KNOW THE WEIGHT OF THE COMPOUND. ALSO WE CAN                                       CALCULATE THE MILIMOLES BY FOLLOWING FORMULA

                         For mmol of Sodium in Sodium Chloride
                                       =            Wt. of Compound(g) x %age of element in Compound x 1000
                                                                                100 x Mol. Wt of Element

                                       =            3.8 x 39.34 x 1000
                                                          100 x 22.99
                                       =            65.02 mmol of Sodium

                         For Example: POTASSIUM CHLORIDE
                         Is made from One Potassium and One Chloride
                         Mol.Wt of Potassium Chloride is 74.5513
                         Mol.Wt of Potassium : 39.0983
                         %age of Potassium =            Number of Molucle x  Mol.Wt of Potassium x100
                                                                                     Mol.Wt of Potassium Chloride
                                                            =            1 x 39.0983 x 100
                                                                                  74.5513
                                                            =            52.4448 % of Potassium
                         Mol.Wt of Chloride: 35.45
                         %age of Chloride     =           Number of Molucle x Mol.Wt of Chloride x100
                                                                                     Mol.Wt of Sodium Chloride
                                                             =           1 x 35.45 x 100
                                                                             74.5513
                                                             =           47.55 % of Chloride
                         We can calculate of %age of any element in any Compound by above manner
                         Calculation of milimole = Mol.Weight/1000         
          
                              IF WE REQUIRED 20 mmol OF POTASSIUM
                          Than we calculate the weight of compound(Potassium Chloride) from following                            Formula
                                                Mol.weight of Required element x Required mmoles x 100
                                                            1000 x %age of element in Compound
                                                                   =    39.0983 x 20 x100
                                                                           1000 x 52.4448
                                                                   =    1.4910 g of Potassium Chloride
  
                         For Example: TRI SODIUM CITRATE DIHYDRATE
                         Is made from Tri Sodium and One Citrate and Two Water
                         Mol.Wt of Tri Sodium Citrate is 294.10
                         Mol.Wt of Sodium : 22.99
                         %age of Sodium =            Number of Molucle x  Mol.Wt of Sodium x100
                                                                             Mol.Wt of Tri Sodium Citrate Dihydrate
                                                       =            3 x 22.99 x 100
                                                                            294.10
                                                       =            23.45 % of Sodium
                         Mol.Wt of Citrate  : 192.123   
                         %age of Citrate  =            Number of Molucle x  Mol.Wt of Citrate x100
                                                                          Mol.Wt of Tri Sodium Citrate Dihydrate
                                                       =            1 x 192.123 x 100
                                                                            294.10
                                                       =            65.32 % of Citrate

                         Mol.Wt of Water   : 18.01528
                         %age of Water  =              Number of Molucle x  Mol.Wt of Water x100
                                                                          Mol.Wt of Tri Sodium Citrate Dihydrate
                                                       =            2 x 18.01528 x 100
                                                                            294.10
                                                       =            12.2511% Water

                          We can calculate of %age of any element in any Compound by above manner
                          Calculation of milimole = Mol.Weight/1000         
         
                             IF WE REQUIRED 10 mmol OF CITRATE
                         Than we calculate the weight of compound (Tri Sodium Citrate 2H2O)
                         in following Formula
                                                Mol.weight of Required element x Required mmoles x 100
                                                            1000 x %age of element in Compound

                                                                   =    192.123 x 10 x100
                                                                           1000 x 65.32
                                                                   =    2.9412 g  of Tri Sodium Citrate Dihydrate



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