Question

a 22 gram sample of a substance thats used to preserve fruit and vegetables has a k value of 0.1011. find the half life rounded to the nearest tenth

Answer 1

k value = natural log (.5) / half-life
half-life = natural log (.5) / k value
half-life = -.693147 / 0.1011
half-life = 6.8560534125

I'd say the k value should be negative AND it should have units.