4. Perform each of the following unit conversions using the conversion factors given below: 1 atm = 760 mmHg = 101.325 kPa
(Round answer to 4 significant figures and use standard notation.)
b. 1. 760 mmHg
a. 986.9 atm
с
2. 101.325 kPa
b. 1 atm
3. 1.000 x 105 kPa =
C. 760 mmHg

Reaction involved in present system is :   c12h22o11 + h2o → 2 c6h12o6the reaction system is obeying following rate law:   rate = k[c12h22o11]thus, it is a first order reaction.now, for 1st order reactionrate constant (k) =  given: initial conc. = 3.0 g, final conc. = 2.7 g, t = 2.5 h∴rate constant (k) =  ∴ k = 0.04215 h-1now, for 1st order reaction, half life = 0.693/k = 0.693/0.04215 = 16.4 hthus correct answer is option b