What is the solubility of oxygen gas in $100 \, cm^3$ of water at $293 \, K$ (in $, cm^3$)?

Rank the following solvents in decreasing order of their ability to dissolve the given solute (naphthalene).

The variation of solubility with temperature $T$ for a gas in a liquid is shown by the following graphs. The correct representation is:

$K_H$ is Henry's constant and has the unit

$CO_2$ gas is bubbled through water during a soft drink manufacturing process at $298 \ K$. If $CO_2$ exerts a partial pressure of $0.835 \ bar$,then $x \ mmol$ of $CO_2$ would dissolve in $0.9 \ L$ of water. The value of $x$ is $.....$ (Nearest integer).
(Henry's law constant for $CO_2$ at $298 \ K$ is $1.67 \times 10^3 \ bar$)

The quantity of $CO_2$ in $500 \ mL$ of soda water when packed under $3.34 \ bar$ $CO_2$ pressure at $298 \ K$ in $g$ is