Question

3) A soda can containing 355 mL of a carbonated soft drink is held at 3°C under 2.2 atm CO₂ pressure. What is the concentration of CO₂ in the soda, assuming that K_H = 7.8 x 10^-2 M/atm?

4) When 0.64 g of adrenaline is dissolved in 36.0 g C₆H₆ (K_f = 5.12 °C), the freezing point is lowered by 0.50 °C. Determine the molar mass of adrenaline.

5) Carbon tetrachloride, and important industrial solvent is made from methane via

CH_{4 (g)} + 4Cl_2(g) -> CCl_4(l) + 4HCl _(g)

The following data were obtained at room temperature for sucrose:

Pressure of CH4 (atms)	Pressure of Cl2 (atms	Rate of rxn (s-1)
1.0	5.0	1x10-3
2.0	5.0	2x10-3
3.0	5.0	3x10-3
1.0	10.0	8x10-3

Determine the rate with respect to Cl₂ and CH₄

Answer 1

3)
Use formula of Henry's law,
C = KH*P
= 7.8*10^-2 M/atm * 2.2 atm
= 0.17 M
Answer: 0.17 M