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

Author Question: The half-life of carbon-11 is 20.3 minutes. How much of a 100.0 mg sample remains after 1.6 hours? ... (Read 323 times)

kwoodring

  • Hero Member
  • *****
  • Posts: 560
on: Aug 27, 2018
The half-life of carbon-11 is 20.3 minutes. How much of a 100.0 mg sample remains after 1.6 hours?
 
  A) 3.77 mg
  B) 0.0377 mg
  C) 94.7 mg
  D) 1.75  10-89 mg
  E) 99.9 mg

Question 2

A 45.0-L steel tank at 20.0C contains acetylene gas, C2H2, at a pressure of 1.39 atm. Assuming ideal behavior, how many grams of acetylene are in the tank?
 
  A) 2.60 g
  B) 10.0 g
  C) 67.8 g
  D) 990 g
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

gabrielle_lawrence

  • Sr. Member
  • ****
  • Posts: 353
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


Kendra Marie Haywood

  • Newbie
  • *
  • Posts: 1
Reply #2 on: Feb 16, 2022
thanks


« previous next »
 

Did you know?

Cucumber slices relieve headaches by tightening blood vessels, reducing blood flow to the area, and relieving pressure.

Did you know?

Asthma is the most common chronic childhood disease in the world. Most children who develop asthma have symptoms before they are 5 years old.

Did you know?

Fatal fungal infections may be able to resist newer antifungal drugs. Globally, fungal infections are often fatal due to the lack of access to multiple antifungals, which may be required to be utilized in combination. Single antifungals may not be enough to stop a fungal infection from causing the death of a patient.

Did you know?

Chronic necrotizing aspergillosis has a slowly progressive process that, unlike invasive aspergillosis, does not spread to other organ systems or the blood vessels. It most often affects middle-aged and elderly individuals, spreading to surrounding tissue in the lungs. The disease often does not respond to conventionally successful treatments, and requires individualized therapies in order to keep it from becoming life-threatening.

Did you know?

Drug-induced pharmacodynamic effects manifested in older adults include drug-induced renal toxicity, which can be a major factor when these adults are experiencing other kidney problems.

Stressful Life Events, 5-HTT, and Depression Stressful Life Events, 5-HTT, and Depression
Anna Vallayer-Coster, Still Life with Lobster. Anna Vallayer-Coster, Still Life with Lobster.
Rank-order correlations show that differential consistency remains high from childhood through late ... Rank-order correlations show that differential consistency remains high from childhood through late ...
Life cycle of Ascaris: Adult worms (1) live in the lumen of the small intestine. A female may ... Life cycle of Ascaris: Adult worms (1) live in the lumen of the small intestine. A female may ...
Human activity has released carbon from sequestration in long-term reservoirs Human activity has released carbon from sequestration in long-term reservoirs
A field study of guppy life history evolution. A field study of guppy life history evolution.
Video: Helper T cell receptors, activation, proliferation, differentiation & action

For a complete list of videos, visit our video library