A sodium hydroxide solution has pH =12 .( pH = log (1/( H +))) 100 mL of this solution has NaOH

Question

A sodium hydroxide solution has pH =12 .( pH = log (1/( H +))) 100 mL of this solution has NaOH (A) 0.4 g (B) 0.04 g (C) 0.004 g (D) 4 g

Tardigrade Admin · Accepted Answer

pH =12 ∴[ H +]=10-12 M [ OH -]=10-2 M =10-2 mol L -1 =10-3 mol per 100 mL =10-3 × 40 g NaOH per 100 mL =0.04 g

Q. A sodium hydroxide solution has $p H = 12. (p H = lo g \frac{1}{( H ^{+} )}) 100 m L$ of this solution has $N a O H$