To remove any remaining traces of another existing compound that might inhibit the crystallization of the phenol.
A base or alkali as NaOH, KOH, Ca(OH)2.
It is because sodium reacts with water (present in test tube or porcelain basin) to give a alkaline solution of NaOH.
Because if sodium is not completely fused...it reacts with water giving out naoh..which is a alkali..hope u like it kid...
NaOH(s) is solid and mostly pure sodium hydroxide. NaOH(aq) is sodium hydroxide dissolved in water.
NaOH is Sodium Hydroxide.
By adding HCl, you can ensure the presence of the SO4(2-) ion.
Why the NaOH is heated before adding in BaCl2 for determination of purity of NaOH sample?
NaAlo2 + Naoh
At very high temperature NaOH is decomposed and Na2O fumes are emited.The reaction is:2 NaOH = Na2O = H2O
It allows the concentration of the NaOH to be known.
A base or alkali as NaOH, KOH, Ca(OH)2.
It is because sodium reacts with water (present in test tube or porcelain basin) to give a alkaline solution of NaOH.
It is because sodium reacts with water (present in test tube or porcelain basin) to give a alkaline solution of NaOH.
Because if sodium is not completely fused...it reacts with water giving out naoh..which is a alkali..hope u like it kid...
Ammonia gas will be evolved. The chemical reaction is :NH4Cl + NaOH --> NH3 (g) + NaCl + H2O
3.42 moles NaOH (39.998 grams/1 mole NaOH) = 137 grams NaOH
Molarity = moles of solute/Liters of solution 3.42 M NaOH = 1.3 moles NaOH/Liters NaOH Liters NaOH = 1.3 moles NaOH/3.42 M NaOH = 0.38 Liters