-acidic- Aluminium nitrate is a salt of aluminium and nitric acid. KCl = neutral - salt of strong acid (HCl) and strong base (KOH) NH4Br = acidic. KOH is a strong base and completely ionizes to make K+ and OH-. Potassium carbonate (K2CO3) is a white salt, soluble in water (insoluble in ethanol) which forms a strongly alkaline solution.It can be made as the product of potassium hydroxide's absorbent reaction with carbon dioxide.It presents a large capacity to absorb moisture. To find the Kb1 value you would have to find the Ka2 value of Carbonic acid … Therefore, it will be the most basic and have the highest pH. pH of Common Acids and Bases. General description Potassium carbonate (K 2 CO 3) is a water-soluble inorganic compound that is primarily derived from potash.It is industrially prepared by reacting potassium hydroxide and carbon dioxide. The solution crystallizes to form potash hydrate, which can further be heated above 200°C to produce the anhydrous salt. Get 1:1 help now from expert Chemistry tutors Reaction mechanism. Any help shall be appreciated. NaCN = basic. LiClO = basic - salt of strong base (LiOH) and weak acid (HClO) The middle three are correct. K2CO3 is a salt. Previous question Next question Get more help from Chegg. * actually, whoever wrote this is wrong. C) NaBr - basic - Sodium bromide, NaBr is widely used in organic synthesis as a nucleophile. Expert Answer 100% (6 ratings) K3PO4 strong base/weak acid salt, thus it is basic. The pKa of its conjugate acid is 10.25. Calculated pH values of common acids and bases for 1, 10, and 100 mmol/L (valid for standard conditions at 25, 1 atm; acidity constants are taken from here): The mechanism of the Suzuki reaction is best viewed from the perspective of the palladium catalyst 1.The first step is the oxidative addition of palladium to the halide 2 to form the organopalladium species 3.Reaction with base gives intermediate 4, which via transmetalation with the boron-ate complex 6 (produced by reaction of the boronic acid 5 with base… K2CO3 strong base/weak acid salt, thus it is basic. Considering that CO3, or carbonic ACID, this substance would be considered an acid. B) K2CO3 -basic -- K2CO3- Potassium carbonate is a white salt, soluble in water (insoluble in alcohol), which forms a strongly alkaline solution. However the CO3- reacts as a base with an acid to form metal salt, CO2 and water. It is commonly used to deprotonate moderately acidic protons such as phenols (pKa ~10) and 1,3-dicarbonyl compounds (pKa ~9-13). Fe(ClO4)2, CaBr2 and Mg(ClO)2 are salts. K2CO3 = basic. The rule of thumb is: metal carbonate + acid = metal salt + CO2 + H2O. KBr strong view the full answer. a. Al(NO3)3 b. C2H5NH3NO3 c. K2CO3 d. RbI e. NH4ClO HClO4 is a strong acid and completely ionizes to make H+ and ClO4^-. However, amides still are very weak acids (about as weak as water) and, for practical purposes, are regarded as neutral compounds. K2CO3 KBr NH4OCl. Determine if each salt will form a solution that is acidic, basic, or pH-neutral. The question is to find out the $\mathrm{pH}$ of $\pu{0.5 M}$ $\ce{K2CO3}$ solution. Since $\ce{K2CO3}$ is a salt of weak acid and strong base hence its pH is given by $$\mathrm{pH} = \frac{\mathrm pK_\mathrm w + \mathrm pK_\mathrm a + \log c}{2}.$$ I am unsure of which $\mathrm pK_\mathrm a$ I should consider. 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