`XeF_(4)` exists as …. Under ordinary atmospheric conditions

The Henry's Law constant for oxygen dissolved in water is 4.34xx10^(4) atm at 25^(@)C . If partial pressure of exygen in are is 0.2 atm. Under ordinary atmospheric conditions, calculate the concentration (in moles/litre) of dissolved oxygen in water in equilibrium with air at 25^(@)C .

The Henry's Law constant for oxygen dissolved in water is 4.34 xx 10 ^(4)atm ( mol /L) at 25^(@) C . If the partial pressure of oxygen in air is 0.2 atm under ordinary atmospheric condition calculate the concentration (in mol/litre ) of dissolved oxygen in water equilibrium with air at 25^(@) C

Which colour precipitate is fomed by Fe(II) salt with potassium ferrocyanide, (i)in complete absence of air and (ii)under ordinary atmospheric condition ?

Which colour precipitate is fomed by Fe(II) salt with potassium ferrocyanide, (i)in complete absence of air and (ii)under ordinary atmospheric condition ?

Name a nonmetal which exists as liquid under normal conditions.