Answer:
answer is b
use pv=nRT
p directly proportional to moles(n)
p1/p2=n1/n2
p/p2=n/2n
p2=2p
pKa is a value which is related to the acid dissociation constant Ka
pKa = -log Ka
i.e. Ka = 10^-pKa
The deprotonation reaction of acetylene is:
HC≡CH ↔ HC≡C⁻ + H⁺
pKa (HC≡CH) = 25
Solvents with pKa greater than 25 will deprotonate acetylene.
Ans: CH2=CH⁻ pka = 44 and CH3NH⁻ pka = 40
Solar sunspot activity affected global climate during the Maunder Minimum by make the global climate much colder due to low sunspots.
hope this helps :)
D. plenty of water
First, the affected area is washed with plenty of water for 15-20 minutes. Then washed with a weak solution of sodium bicarbonate.
H⁺ + HCO₃⁻ → H₂O + CO₂
