Find the rate constant (k) using the 1^st order concentration-time equation: ln [C]=ln [C]o-kt Then, determine the half-life using -kt1 / 2=ln(([C]1 / 2)/([C]o)) along with your k value and [C]1 / 2=(1)/(2)[C]o. (10 pts)9. Use the 1^st order concentration-time equation and the data in #8 (above) to plot a straight-line graph. Identify which variables are x, y, the y-intercept (b), and the slope (m).Also, find the values (x, y) for at least two points on the line.Make the graph on either graph pa

Rate Constant & Rate Law | Definition, Differences & Examples

Worked example: Determining a rate law using initial rates data