In what ratio should a ` 6.5 N HNO_(3)` be diluted with water to get `3.5 N HNO_(3)` ?

What is the oxidation state of N in HNO_(3) ?

Hybridisation shown by N in HNO_(3) is

R_(3) N reacts with HNO_(2) to give

6 gm of CH_(3)COOH, 6 gm of NaOH and 6.3 gm of HNO_(3) are dissolved in 1L of water. If K_(a) of CH_(3)COOH is 10^(-5) then calculate pH of resulting solution.

6 gm of CH_(3)COOH, 6 gm of NaOH and 6.3 gm of HNO_(3) are dissolved in 1L of water. If K_(a) of CH_(3)COOH is 10^(-5) then calculate pH of resulting solution.

Calculate pH of - 10^(-3)N HNO_(3)