Chemistry Practice Problems Identifying Reaction Order Practice Problems Solution: A wooden spear was recently found in what is thoug...

# Solution: A wooden spear was recently found in what is thought to be a Bronze Age site. Archeologists wish to carbon date the spear to verify that it's from the correct time period. We know that the half-life 14C is 5700 years and that initially living samples contain 32 grams of  14C if the current sample contains 8 grams of 14C, how old is the spear? a) 14,300 years b) 11,400 years c) 6120 years d) 2350 years e) 4860 years

###### Problem

A wooden spear was recently found in what is thought to be a Bronze Age site. Archeologists wish to carbon date the spear to verify that it's from the correct time period. We know that the half-life 14C is 5700 years and that initially living samples contain 32 grams of  14C if the current sample contains 8 grams of 14C, how old is the spear?

a) 14,300 years

b) 11,400 years

c) 6120 years

d) 2350 years

e) 4860 years

Identifying Reaction Order

Identifying Reaction Order

#### Q. The experimental data from a certain reaction gives these three graphs. What is the most likely order for this reaction?

Solved • Tue Apr 26 2016 13:54:21 GMT-0400 (EDT)

Identifying Reaction Order

#### Q. The activity of a radioisotope is 3000 counts per minute at one time and 2736 counts per minute 48 hours later. What is the half-life of the radioisot...

Solved • Tue Apr 26 2016 12:47:06 GMT-0400 (EDT)

Identifying Reaction Order

#### Q. Given the unit of rate constant ( k ) as mol / (L•s), which one of the following graphs shows the correct relationship between concentration of reacta...

Solved • Thu Apr 21 2016 10:00:59 GMT-0400 (EDT)

Identifying Reaction Order

#### Q. A student studied the kinetics of the reaction  C2H4(g) → C2H2(g) + H2(g)  by monitoring the C2H4 concentration (in moles/L) as a function of time. ...

Solved • Mon Mar 28 2016 17:05:44 GMT-0400 (EDT)