Q.

Which of the following statements is/are correct? 20.0 mL of 6.0 M HCI is mixed with 50.0 mL of 2.0 MBa(OH)2, and 30 mL of water is added.

see full answer

Talk to JEE/NEET 2025 Toppers - Learn What Actually Works!

Real Strategies. Real People. Real Success Stories - Just 1 call away
An Intiative by Sri Chaitanya

a

The concentration of O⊝H remaining in solution is 0.8 M.

b

The concentration of Cl⊝ remaining in solution is 1.2M.

c

The concentration of Ba2+ remaining in solution is 1.0M

d

80 mmoles of O⊝H is in excess

answer is A.

(Unlock A.I Detailed Solution for FREE)

Ready to Test Your Skills?

Check your Performance Today with our Free Mock Test used by Toppers!

Take Free Test

Detailed Solution

mmoles of HCl⇒20×6=120⇒120 mmol H⊕+120 mmolCl⊝ mmoles of Ba(OH)2⇒5×2=100⇒100 mmol Ba2++200 mmol O⊝H H⊕+O⊝H→ H2O Total volume = 20+50+30=100 mL 1. âˆ´ O⊝H=(200−120) mmol100 mL=0.8 M2. Cl⊖=120 mmol100 mL=1.2M3. Ba2+=100 mmol100 mL=1.0M 4. mmoles of  O⊝H left = 200-120=80 mmol
Watch 3-min video & get full concept clarity
score_test_img

Get Expert Academic Guidance – Connect with a Counselor Today!

whats app icon