Question

Assuming equal concentrations, arrange these solutions by pH. Highest pH Lowest pH Answer Bank KNO, (aq) K,CO,(aq) NaOH(aq) NH, NO3(aq) Hl(aq)

Answer 1

1.the pH value of NaOH =13.0      

2.the pH value of K₂CO₃=10.5

3.the pH value of KNO₃=6.2

4.the pH value of NH₄NO₃=5.2

5.the pH value of HI= 3.01

These values are arranged in descending order.

Answer and Explanation: Sodium hydroxide (NaOH) is considered to be alkaline. It is considered a strong based because it is able to dissociate from the hydrogen ion...

Potassium carbonate (K2CO3) is a commonly usedbase in organic chemistry. The pKa of its conjugateacid is 10.25. It is commonly used to deprotonate moderately acidic protons such as phenols (pKa ~10) and 1,3-dicarbonyl compounds

Potassium nitrate is a chemical compound with the chemical formula KNO3. It is an ionic salt of potassium ions K+ and nitrate ions NO3−, and is therefore an alkali metal nitrate. It occurs in nature as a mineral, niter. It is a source of nitrogen, from which it derives its name.

NH4NO3 is acidic salt, because it consists of NH3 and HNO3. NH3 is a weak base and HNO3 is a strong acid. So, overall the salt is acidic.

Hydrogen iodide is a diatomic molecule and hydrogen halide. Aqueous solutions of HI are known as hydroiodic acid or hydriodic acid, a strong acid. Hydrogen iodide and hydroiodic acid are, however, different in that the former is a gas under standard conditions, whereas the other is an aqueous solution of the gas.