When answering this problem, report the answer with the appropriate number of significant figures. When entering units, use proper abbreviated units with proper capitalization. A solution is prepared by pipetting 5.00 mL of 0.0098 molar HCl into a 100.0 mL graduated cylinder, and adding enough water to prepare 50.0 mL of solution. Calculate the pH of this solution.

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

The answer is:   [d]:   "ultraviolet" {"  uv  "} .