This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: The nuclide As-76 has a half-life of 26.0 hours. If a sample of As-76 weighs 344 g, what mass of ... (Read 127 times)

lb_gilbert

  • Hero Member
  • *****
  • Posts: 588
on: Nov 18, 2019

Question 1

The age of an ancient tree trunk is estimated using radiocarbon dating. If the trunk has a C-14 decay rate that is 34% of what it is in living plants, how old is the trunk? The half-life of C-14 is 5730 years.
◦ 1.94 × 104 years
◦ 5.31 × 103 years
◦ 1.74 × 102 years
◦ 8.92 × 103 years
◦ 2.92 × 104 years

Question 2

The nuclide As-76 has a half-life of 26.0 hours. If a sample of As-76 weighs 344 g, what mass of As-76 remains after 538 minutes?
◦ 437 g
◦ 67.8 g
◦ 144 g
◦ 251 g
◦ 271 g
Chemistry: A Molecular Approach (Canadian) ¦ Tro, Fridgen, Shaw ¦ 2nd Edition
Buy Test-Bank


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by lb_gilbert on Nov 18, 2019

memslove

  • Sr. Member
  • ****
  • Posts: 321
Reply #1 on: Nov 18, 2019
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
Answer Preview
Only 29% of students answer this correctly


lb_gilbert

  • Member
  • Posts: 588
Reply 2 on: Nov 18, 2019
YES! Correct, THANKS for helping me on my review

pangili4

  • Member
  • Posts: 346
Reply 3 on: Yesterday
Excellent

« previous next »
 

Did you know?

It is believed that the Incas used anesthesia. Evidence supports the theory that shamans chewed cocoa leaves and drilled holes into the heads of patients (letting evil spirits escape), spitting into the wounds they made. The mixture of cocaine, saliva, and resin numbed the site enough to allow hours of drilling.

Did you know?

There are major differences in the metabolism of morphine and the illegal drug heroin. Morphine mostly produces its CNS effects through m-receptors, and at k- and d-receptors. Heroin has a slight affinity for opiate receptors. Most of its actions are due to metabolism to active metabolites (6-acetylmorphine, morphine, and morphine-6-glucuronide).

Did you know?

The U.S. Preventive Services Task Force recommends that all women age 65 years of age or older should be screened with bone densitometry.

Did you know?

Nitroglycerin is used to alleviate various heart-related conditions, and it is also the chief component of dynamite (but mixed in a solid clay base to stabilize it).

Did you know?

In 1835 it was discovered that a disease of silkworms known as muscardine could be transferred from one silkworm to another, and was caused by a fungus.

The life cycle of a typical fern. The life cycle of a typical fern.
These species are all at risk of extinction. Species with “slow” life-h These species are all at risk of extinction. Species with “slow” life-h
Fern Life Cycle Fern Life Cycle
Dimensions of quality of life affected by cancer Dimensions of quality of life affected by cancer
Sample Stress Management Program Sample Stress Management Program
Historical Life Expectancy Historical Life Expectancy
Video: Smoking Cessation

For a complete list of videos, visit our video library