suy ra số mol x = 0.04 mol

số mol NaOH = 0.08

vậy V = 0,2 lít

chọn B

12x-3x+1=937

12x-3x=937-1

12x-3x=936

(12-3)x=936

9x=936

x=936:9

x=104

Câu 1 B nhé

:sinh ra khí O2

Mark the letter A, B, Cor D on your answer sheet to indicate the correct answer to each of the following questions

On the top of the letter, it reads, “To ______ it may concern.”

A. who 

B. however 

C. whose 

D. whom