Nitrogen dioxide is an acidic gas. Nitrogen dioxide is an acidic gas and produce an acidic solution with water (mixture of acids). So yes, it is a weak acid (NH4+) and weak base (NO2-). HF, as you recall, is a weak acid, so a little of it will want to dissociate back to F(-) and H(+), but the equilibrium is still mostly to the right, as you can see from the positive value for K. Therefore F(-) is a strong base. Urine analysis. Essentially, a base accepts protons from acids. Sodium nitrite is an efficient drug in case of cyanide poisoning.It is used together with sodium thiosulfate. Knowing that NaNO2 is the salt of a strong base and weak acid calculate... a: pH of 0.100 M NaNO2 solution. it is an acidic salt due to NH4+ ions being weak acid (pKa=9.2) HNO 2 (aq) + H 2 O(l) → ← H 3 O + (aq) + NO 2 – (aq). Toxicological analysis: The most relevant investigation is methemoglobin concentration which correlates well with symptoms and should be monitored according to the clinical condition. The ammonium ion is a Bronsted-Lowery acid in that it will donate an H+ to solution. c) KOCl will be basic because KOH is a strong base while HOCl is a weak acid...Kb > Ka in this case It is on the World Health Organization's List of Essential Medicines.. Food additive and preservative. Chemistry 112. Solutions for Acids and Bases Questions 2. Arterial blood gases. And NH4NO3 is the salt of Strong acid and weak base so it is slightly acidic in nature. NaNO2 is Base I'll tell you the Acid or Base list below. As a shortcut, you can remember that weak acids have strong conjugate bases, and strong acids have weak conjugate bases. Ka of HNO2 = 4.6 x 10-4. b: pH of the solution obtained on adding 20.0 ml of a 0.100 M HCl solution to 60.0 ml of a 0.100 M NaNO2 . NaNO 2 - basic (NO 2-is a weak base - the conjugate base of a weak acid,HNO 2) NO 2-+ H2 O X HNO 2 + OH-NH 4 Cl - acidic (NH 4 + is a weak acid - the conjugate acid of a weak base, NH 3) NH 4 + + H 2 O X H 3 O + + NH 3 Li 2 SO 4 - basic (SO 4 2-is a weak base - the conjugate base of a weak acid,HSO 4 H2SO4 and NaNO2 yield nitrous acid and sodium sulfate as, H2SO4 + 2NaNO2 ----->2HNO2 + Na2SO4 Is NaNO2 a base or an acid? But you have to compare the Ka and Kb for these species before making a judgement! If you want to quickly find the word you want to search, use Ctrl + F, then type the word you want to search. Nitrite is an easy way to give a pink shade to processed meats. a) C5H5NHClO4 will be acidic because HClO4 is a strong acid while C5H5NH2 is a weak base....Ka > Kb in this case. c. Sulfuric acid, H 2 SO 4, is on the list of strong acids. /Nitrate and nitrite poisoning/ The only common strong base anion is hydroxide, so compounds containing the nitrite ion must be weak bases. Acid-base balance. NO2 dissolves very well in water react with water to give nitrous acid and nitric acid. b) NH4NO2 ....both NH4OH and HNO2 are weak but HNO2's Ka is bigger than NH4OH Kb...so solution will be acidic. It is the conjugate acid of a weak base (NH4+ is the conjugate acid of NH3) and the conjugate base of a weak acid (NO2- is the conjugate base of HNO2). NaNO 2 (aq) → Na + (aq) + NO 2 – (aq). When in solution, ammonium nitrate will dissociate very well into NH4+ and NO3-. d. Sodium hydrogen carbonate, NaHCO 3, is a weak base. As an ionic compound, it contains an anion.