How do I calculate ka

As noted above, [H3O+] = 10-pH. Since x = [H3O+] and you know the pH of the solution, you can write x = 10-2.4. It is now possible to find a numerical value for Ka. Ka = (10-2.4)2 /(0.9 – 10-2.4) = 1.8 x 10-5.

Is HClO3 a strong or weak acid?

The 7 common strong acids are: HCl, HBr, HI, HNO3, HClO3, HClO4 and H2SO4 (1st proton only).

Why is HClO3 more acidic?

– In Chlorous acid, Cl=O. bond will withdraw the electron density from the negatively charged oxygen atom in the conjugate base, so the conjugate base will be more stable and hence the overall acidic strength of Chlorous acid will be more compared to Hypochlorous acid.

What is the pH of HClO3?

Now, we can calculate for pH: The pH of a 3.52 × 10–4 M HClO3 solution is D. 3.45.

Is hch3coo a strong acid?

Explanation: Acetic acid, CH3COOH , is a weak acid, because it is present in solution primarily as whole CH3COOH molecules, and very little as H+ and CH3COO− ions. Which furthermore indicates that acetic acid is weak, because strong ions ionize almost completely.

Is HClO3 polar?

HClO3 H C l O 3 is a polar molecule because of difference in electronegativities of Cl, H and O. The electronegativity of Cl, O and H is 3.16, 3.4 and 2.2.

What is HClO3 charge?

It can hold more than 8 valence electrons. So we really should check our formal charges to see if this is the best structure for HClO3. When we calculate the formal charges, we find that the Chlorine has a +2 charge, while these Oxygens out here have a -1 charge, each of them.

What is the name of HNO 2?

Nitrous acid, for example, oxidizes iodide ion to elemental iodine but reduces bromine to bromide ion. Nitrous acid (HNO2), a weak acid, is very unstable and exists only in aqueous solution.

What is the melting point of HClO3?

CAS number7601-90-3AppearanceColorless liquidDensity1.67 g/cm3Melting point−112 °CBoiling point19 °C (decomposes)

Is HClO3 an acid or base?

HClO3 and HClO4 are strong acids due to the multiple oxygens bonded to the central atom.

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What is KA equal to?

The Ka expression is Ka = [H3O+][C2H3O2-] / [HC2H3O2]. The problem provided us with a few bits of information: that the acetic acid concentration is 0.9 M, and its hydronium ion concentration is 4 * 10^-3 M. Since the equation is in equilibrium, the H3O+ concentration is equal to the C2H3O2- concentration.

Why is HClO3 stronger than HClO?

HClO3 is stronger than HClO. because as the number of oxygen atom increase the acid becomes more stronger.

Which is the strongest acid in the following HClO3?

The HClO4 has the most oxygen atoms so it would have to be the strongest acid. The acidic strength of oxoacids of chlorine is in the order ‘HClO4,HClO3,HClO2,HClO’ Briefly explain the reason for this.

Which Oxoacid is strongest?

Therefore, HOCl is the strongest acid and HOI is weakest, and acid strength decreases as the central halogen descends on the periodic table. The strength of the acid is determined by the central atom’s electronegativity relative to the surround atoms in the molecule.

Is NH3 a base?

Ammonia, NH3, is a Lewis base and has a lone pair. It will donate electrons to compounds that will accept them. Donation of ammonia to an electron acceptor, or Lewis acid. There may be anionic or neutral Lewis bases.

Is sroh2 a strong base?

Group IA and Group IIA (Only Sr, Ca, Ba) with hydroxide (OH−) are strong bases.

Is hc3cooh a weak acid?

CH3COOH is a weak acid because it ionizes only partially in aqueous solution to form H+ and CH3COO– ions. Therefore the nature of CH3COO– is basic, and we call CH3COO– the conjugate base of CH3COOH. It is in equilibrium with its ions in water and its conjugate (CH3COO–, a weak base) is also in equilibrium in water.

What is NH3 Lewis structure?

The Lewis structure of ammonia, NH3 , would be three hydrogen atoms bonded to a nitrogen atom in the middle, with a lone pair of electrons on top of the atom. This is the reason why ammonia acts as a Lewis base, as it can donate those electrons.

Is HClO3 trigonal planar?

In the case of chloric acid, HClO3 , you can draw several valid Lewis structures called resonance structures. … Therefore, you can say that the chloric acid molecule has a trigonal pyramidal geomety for the chlorine atom and a bent geometry for one of its oxygen atoms.

What type of compound is HClO3?

Chloric acid is a chlorine oxoacid. It is a conjugate acid of a chlorate.

What is the formula for Hypobromous acid?

2.4. Hypobromous acid is a weak, unstable acid with the chemical formula HBrO, where the bromine atom is in the +1 oxidation state. It is also called “bromanol” or “hydroxidobromine”.