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Alpha helix and beta sheets are the secondary structure of protein
I not getting the value but I know the equation it is NO OF MOLECULES =AVAGADROS CONSTANT *NO OF MOLES
Answer:
1.36
Explanation:
HClO2 ⇄ H+ + ClO2-
[HClO2] [H+} [ClO2-]
initial: 0.12 0 0
change: -x +x +x
equil: 0.12-x x x
[H+][ClO2-] / [HClO2] = Ka = 1.2 * 10^-2
x* x / 0.12 - x = 1.2 * 10^-2
x^2 = (2.4 * 10^-3) - (1.2 * 10^-2)x
x^2 + (1.2 * 10^-2)x – (2.4 * 10^-3) = 0
Upon solving for x,
x = 0.04335
[H+] = 0.04335
pH = -log[H+]
pH = -log(0.04335) = - (-1.36) = 1.36
Correct Answer: <span>(3) Electronegativity and first ionization energy both increase.
Reason:
Electronegativity and ionization energy are dependent on effective nuclear charge and size of atom.
As we move along the periodic table from left to right, atomic size decreases and effective nuclear charge increases. The increase in effective nuclear charge and decrease in atomic radii favor ionization energy and electronegativity.
Hence, in 3rd period (from Na to Cl) electonegativity and 1st ionization energy increases. </span>
