The answer is A. <span>why a balloon deflates when the air around it cools </span>
The product of electron capture decay of argon isotope ³⁷Ar can be seen in the equation shown below:
³⁷₁₈Ar+⁰₋₁e------>³⁷ ₁₇Cl +υ
During electron capture, nucleus captured a inner orbital electron and results in a formation of a neutron that combines with proton. Mass number remain conserved and only atomic number decreases.
Answer:
pH = 2.56
Explanation:
The Henderson-Hasselbalch equation relates the pH to the Ka and ratio of the conjugate acid-base pair as follows:
pH = pKa + log([A⁻]/[HA]) = -log(Ka) + log([A⁻]/[HA])
Substituting in the value gives:
pH = -log(1.77 x 10⁻⁴) + log((0.0065M) / (0.10M))
pH = 2.56
Option numberrrr C I THINK
3.25 kg in g = 3.25 * 1000 = 3250 g
Molar mass C₂H₆O₂ = 62.0 g/mol
Mass solvent = 7.75 kg
Number of moles:
n = mass solute / molar mass
n = 3250 / 62.0
n = 52.419 moles
Molality = moles of solute / kilograms of solvent
M = 52.419 / 7.75
M = 6.7637 mol/kg
hope this helps!
