Trộn hai thể tích bằng nhau của dung dịch NH4OH 0,10M với dung dịch NH4Cl 0,10M. Hãy tính pH của dung dịch đệm thu được. Biết pKb(NH3) = 4,75.

Which of the following statements about acidic water is true? a. acid has no effect on the h,o molecules. b. the solution contains a larger number of oh ions than h,o ions. c. the solution contains a larger number of h,o ions than qh ions. d. the solution contains an equal number of h,o ions and oh ions. none of the above e.

What substance has a mass of 9.5g and volume of 2.1cm^3

Building glycogen from glucose molecules is an example of