The first and second ionization constants of a weak dibasic acid \( H_2A \) are \( 8.1 \times 10^{-8} \) and \( 1.0 \times 10^{-13} \) respectively. 0.1 mol of \( H_2A \) was dissolved in 1L of 0.1 M HCl solution. The concentration of \( \text{HA}^- \) in the resultant solution is:
- 0.1 M
- \( 9.53 \times 10^{-6}} \) M
- \( 8.1 \times 10^{-8} \) M
- \( 6.1 \times 10^{-13} \) M
The Correct Option is B
Solution and Explanation
Final Answer: \( 9.53 \times 10^{-6} \, \text{M} \)
Top JEE Main Chemistry Questions
What will be the equilibrium constant of the given reaction carried out in a \(5 \,L\) vessel and having equilibrium amounts of \(A_2\) and \(A\) as \(0.5\) mole and \(2 \times 10^{-6}\) mole respectively?
The reaction : \(A_2 \rightleftharpoons 2A\)- At equilibrium the concentrations of and in a sealed vessel at . What will be for the reaction
- Find out the major products from the following reactions
Cobalt chloride when dissolved in water forms pink colored complex $X$ which has octahedral geometry. This solution on treating with cone $HCl$ forms deep blue complex, $\underline{Y}$ which has a $\underline{Z}$ geometry $X, Y$ and $Z$, respectively, are
- The correct order of atomic radii is:
Top JEE Main Quantum Numbers and Orbitals Questions
Given below are two statements:
Statement (I): For a given shell, the total number of allowed orbitals is given by \( n^2 \).
Statement (II): For any subshell, the spatial orientation of the orbitals is given by \( -l \) to \( +l \) values including zero. In the light of the above statements, choose the correct answer from the options given below:- Total number of electrons in chromium (Z = 24) for which the value of azimuthal quantum number (l) is 1 and 2.
- What is the energy (in J atom\(^{-1}\)) required for the following process?} \[ Li^{2+}(g) \rightarrow Li^{3+}(g) + e^{-} \] (Take the ionization energy for the H atom in the ground state as \(2.18 \times 10^{-18}\) J atom\(^{-1}\)).
- Identify the correct statements from the following :}
A. Heisenberg uncertainty principle is applicable to electrons.
B. The size of \(2p_x\) orbital is less than the size of \(3p_x\) orbital.
C. The energy of \(2s\) orbital of H atom is equal to the energy of \(2s\) orbital of Li.
D. The electronic configuration of Cr is \([Ar] 3d^5 4s^1\) - The Bohr radius of a hydrogen like species is \(70.53\,\text{pm}\). The species and the stationary state \((n)\) are respectively. (Given: Hydrogen atom Bohr radius is \(52.9\,\text{pm}\)).
Top JEE Main Questions
- In a hydrogen like atom, when an electron jumps from the $M$ - shell to the $L$ - shell, the wavelength of emitted radiation is $\lambda$. If an electron jumps from $N$-shell to the $L$-shell, the wavelength of emitted radiation will be :
- Two masses $m$ and $\frac{m}{2}$ are connected at the two ends of a massless rigid rod of length $l$. The rod is suspended by a thin wire of torsional constant $k$ at the centre of mass of the rod-mass system(see figure). Because of torsional constant $k$, the restoring torque is $\tau =k\theta$ for angular displacement $\theta$. If the rod is rota ted by $\theta_0$ and released, the tension in it when it passes through its mean position will be:
What will be the equilibrium constant of the given reaction carried out in a \(5 \,L\) vessel and having equilibrium amounts of \(A_2\) and \(A\) as \(0.5\) mole and \(2 \times 10^{-6}\) mole respectively?
The reaction : \(A_2 \rightleftharpoons 2A\)- The value of is
- The number of terms of an is even. The sum of the odd terms is and of the even terms is . The last term exceeds the first by . Then the number of terms in the series is ______.