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 128 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
Excellent

kusterl

  • Member
  • Posts: 315
Reply 3 on: Yesterday
Gracias!

« previous next »
 

Did you know?

Excessive alcohol use costs the country approximately $235 billion every year.

Did you know?

Complications of influenza include: bacterial pneumonia, ear and sinus infections, dehydration, and worsening of chronic conditions such as asthma, congestive heart failure, or diabetes.

Did you know?

About 600,000 particles of skin are shed every hour by each human. If you live to age 70 years, you have shed 105 pounds of dead skin.

Did you know?

Elderly adults are living longer, and causes of death are shifting. At the same time, autopsy rates are at or near their lowest in history.

Did you know?

Vampire bats have a natural anticoagulant in their saliva that permits continuous bleeding after they painlessly open a wound with their incisors. This capillary blood does not cause any significant blood loss to their victims.

The life cycle of the early diverging moss genus, Sphagnum, illustrating reproductive adaptations th The life cycle of the early diverging moss genus, Sphagnum, illustrating reproductive adaptations th
Clinical Embryology Training:Promising career for Life science Graduates Clinical Embryology Training:Promising career for Life science Graduates
Sample prescriptions of antibiotics for dental infections. Sample prescriptions of antibiotics for dental infections.
Life Cycle Nutrition: Pregnancy through Infancy Life Cycle Nutrition: Pregnancy through Infancy
How many grams of tartaric acid, H2C4H4O6, (molar mass = 150.10 g) are needed to How many grams of tartaric acid, H2C4H4O6, (molar mass = 150.10 g) are needed to
Mass spectrometry of a synthetic version of collagen peptide Mass spectrometry of a synthetic version of collagen peptide
Video: Coaductile pathway, Timing of contraction signal & Conduction system and ECG

For a complete list of videos, visit our video library