سؤال كيمياء

[R.O]

عندي اسئلة ف التست بانك لل كيمياء شابتر 15 ممكن تساعدوني فيها



What is the [H+]ion in a 4.8 × 10-2 M KOH solution
a) 4.8 × 10-2 M b) 1 × 10-7 M c) 4.8 × 10-11 M d) 4.8 × 10-12 M


6.The pOH of a solution of NaOH is 11.30. What is the [H+] for this solution? a) 2.0 x 10-3 b) 2.5 x 10-3 c) 5.0 x 10-12 d) 4.0 x 10-12

What is the pH of 0.0200 M aqueous solution of HBr
a) 1.00 b) 1.70 c) 2.30 d) 12.30


If the pH = 2 for an HNO3 solution, what is the concentration of HNO3
a) 0.10 b) 0.20 c) 0.010 d) 0.020