4. Markeith found several fossils and decided to use Carbon-14, which has a half-life of 5,730 years, to measure the age. How old is
each rock? Please help
b. A fossil that has 6.25 % of its carbon atoms still
unstable?
C. A fossil that has 75% of its atoms STABLE?

Apeak with a retention time of 407 s has a width at half-height (w1/2) of 7.6 s. a neighboring peak is eluted 17 s later with a w1/2 of 9.4 s. a compound that is known not to be retained was eluted in 2.5 s. the peaks are not baseline resolved. how many theoretical plates would be needed to achieve a resolution of 1.5?

6. what does the symbol ah stand for? o one calorie given off by a reaction the specific heat of a substance the heat capacity of a substance the heat of reaction for a chemical reaction

Predict the products butane (c4h10) + oxygen —>