A soft drink was bottled with a partial pressure of CO 2 of 3 bar over the liquid at room temperature. The partial pressure of CO 2 over the solution approaches a value of 30 bar when 44   g of CO 2 is dissolved in 1   kg of water at room temperature. The approximate pH of the soft drink…

Question

A soft drink was bottled with a partial pressure of

{CO}_{2}

of 3 bar over the liquid at room temperature. The partial pressure of

{CO}_{2}

over the solution approaches a value of 30 bar when

44 g

of

{CO}_{2}

is dissolved in

1 kg

of water at room temperature. The approximate

pH

of the soft drink is ___________

\times 10^{- 1}

.
(First dissociation constant of

H_{2} {CO}_{3} = 4.0 \times 10^{- 7}; \log 2 = 0.3;

density of the soft drink

= 1 g {mL}^{- 1}

)

Aicharya · Accepted Answer

Amount of CO 2 in one liter of solution = 4 . 4 &#160; . = 0 . 1 &#160; Mole pH = 1 / 2 { pKa - logC } For a weak acid solution pH = 1 / 2 { 6 . 4 + 1 } = 3 . 7

A soft drink was bottled with a partial pressure of CO 2 of 3 bar over the liquid at room temperature. The…

Solution