Question

66. Which of the following solutions will have pH close to 7?​

Answer 1

Answer:

We need to calculate the resulting molar concentration of H+ ions to determine the resulting pH of solutions.

Formula used is

MmixVmix=MHClVHCl+MNaOHVNaOH

Option-A:

VHCl=100ml, MHCl=0.1M

VNaOH = 100ml , MNaOH = 0.1M

Mmi x Vmix = MHClVHCl + MNaOHVNaOH

Mmi x (100+100) = 101 × 100 + 101 × 100 = 20

⇒ Mmix = 0.1M

pH =−log (H+) = −log (0.1) = 1

Answer 2

Answer:

this is your answer..........................