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

Author Question: The half-life for beta decay of strontium-90 is 28.8 years. A milk sample is found to contain 10.3 ... (Read 151 times)

HCHenry

  • Hero Member
  • *****
  • Posts: 591
on: Aug 27, 2018
The half-life for beta decay of strontium-90 is 28.8 years. A milk sample is found to contain 10.3 ppm strontium-90. How many years would pass before the strontium-90 concentration would drop to 1.0 ppm?
 
  A) 92.3
  B) 0.112
  C) 186
  D) 96.9
  E) 131

Question 2

How many moles of gas are there in a 53.7 L container at 24.6 C and 845.9 torr?
 
  A) 2.45
  B) 29.6
  C) 0.409
  D) 0.0241
  E) 1860
Chemistry: The Central Science ¦ Brown, LeMay, Bursten ¦ 14th Edition
Buy Test-Bank


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

coyin

  • Sr. Member
  • ****
  • Posts: 334
Reply #1 on: Aug 27, 2018
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


HCHenry

  • Hero Member
  • *****
  • Posts: 591
Reply #2 on: Aug 27, 2018
Thank you!


coyin

  • Sr. Member
  • ****
  • Posts: 334
Reply #3 on: Aug 27, 2018
Always glad to help...


« previous next »
 

Did you know?

As the western states of America were settled, pioneers often had to drink rancid water from ponds and other sources. This often resulted in chronic diarrhea, causing many cases of dehydration and death that could have been avoided if clean water had been available.

Did you know?

Immunoglobulin injections may give short-term protection against, or reduce severity of certain diseases. They help people who have an inherited problem making their own antibodies, or those who are having certain types of cancer treatments.

Did you know?

Calcitonin is a naturally occurring hormone. In women who are at least 5 years beyond menopause, it slows bone loss and increases spinal bone density.

Did you know?

In ancient Rome, many of the richer people in the population had lead-induced gout. The reason for this is unclear. Lead poisoning has also been linked to madness.

Did you know?

It is believed that humans initially contracted crabs from gorillas about 3 million years ago from either sleeping in gorilla nests or eating the apes.

A parasite life cycle. A parasite life cycle.
Sample Exercise Prescription for Weight Training: Beginner Sample Exercise Prescription for Weight Training: Beginner
Gender differences in activity preference are found across cultures, although the specific ... Gender differences in activity preference are found across cultures, although the specific ...
Stepwise approach for managing asthma in adults and patients 12 years and older. Stepwise approach for managing asthma in adults and patients 12 years and older.
This is what was found when removing an air filter from a vehicle that had a lack-of-power concern. ... This is what was found when removing an air filter from a vehicle that had a lack-of-power concern. ...
A teaspoon of milk of magnesia contains 12.0 mg of magnesium hydroxide A teaspoon of milk of magnesia contains 12.0 mg of magnesium hydroxide
Video: Bone tissue types - compact and spongy

For a complete list of videos, visit our video library