Test tubes A, B, C, and D contains sodium chloride, sodium acetate ,sodium carbonate and aluminium chloride solutions respectively. A student checked the pH of each solution .
a) which test tube contain acidic salt
b) which test tube contain basic salt
c)which one contain neutral salt
d) identify the parent acid and base of the salt in test tube A.
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I cannot write a lot of details at the moment.
a) I think Aluminum Chloride in TT (D) contains acidic salt. Al 3+ ions change water molecules to form H3O + ions. So acidity comes in. This is due to charge density & triple charge on Al.
b) Sodium carbonate Na2CO3 and Sodium Acetate CH3COO Na are basic salts in water. The carbonate and acetate groups form more covalent acids. These are weak acids: Carboxylic and Acetic acids. But Na OH is a strong base. So more OH- ions in solution make it basic.
c) Na Cl is neutral salt. Both Na OH and HCl are strong base and acid respectively. So they neutralize equally.
d) NaOH and HCl.
a) I think Aluminum Chloride in TT (D) contains acidic salt. Al 3+ ions change water molecules to form H3O + ions. So acidity comes in. This is due to charge density & triple charge on Al.
b) Sodium carbonate Na2CO3 and Sodium Acetate CH3COO Na are basic salts in water. The carbonate and acetate groups form more covalent acids. These are weak acids: Carboxylic and Acetic acids. But Na OH is a strong base. So more OH- ions in solution make it basic.
c) Na Cl is neutral salt. Both Na OH and HCl are strong base and acid respectively. So they neutralize equally.
d) NaOH and HCl.
kvnmurty:
:-)
Are these answers correct? Hope I didn't make a mistake there
they are correct sir , thank you
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