IUPAC name of the compound $$(\mathrm{CH}_3)_4 \mathrm{C}$$ is

What is IUPAC name of catechol?

At $$298 \mathrm{~K}, 0.1 \mathrm{M}$$ solution of acetic acid is $1.34 \%$ ionized. What is the dissociation constant of acetic acid?

During a process, system absorbs $$710 \mathrm{~J}$$ of heat and increases the internal energy by $$460 \mathrm{~J}$$. What is the work performed by system?