Answer:
The answer to your question is below
Explanation:
3.-
[HF] = 6.9 N
Volume = ?
[H₃PO₄] = 3.2 N
Volume = 22ml
[HF] x Volume a = [H₃PO₄] x Volume b
Volume a = [H₃PO₄] x Volume b / [HF]
Volume a = 3.2 x 22 / 6.9
= 10.2 ml
4.-
[Al(OH)₃] = 4 N
Volume b = 72 ml
[HBr] = ?
Volume a = 21 ml
[Al(OH)₃] x Volume b = [HBr] x Volume a
[HBr] = [Al(OH)₃] x Volume b / Volume a
[HBr] = 4 x 72 / 21
[HBr] = 13.7 N
5.-
[HC₂H₃O₂] = 0.769 N
Volume a = ?
[Mg(OH)₂] = 1.15 N
Volume b = 31 ml
[HC₂H₃O₂] x Volume a = [Mg(OH)₂] x Volume b
Volume a = [Mg(OH)₂] x Volume b / [HC₂H₃O₂]
Volume a = 1.15 x 31 / 0.769
Volume a = 46.4 ml
X
Volume a = ?
[HCl] = 4.7 N
Volume b = 15.78 ml
[Ba(OH)₂] = 5.67 N
[HCl] x volume a = [Ba(OH)₂] x volume b
Volume a = [Ba(OH)₂] x volume b / [HCl]
Volume a = 5.67 x 15.78 / 4.7
Volume a = 19 ml
