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 325 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?

In the United States, congenital cytomegalovirus causes one child to become disabled almost every hour. CMV is the leading preventable viral cause of development disability in newborns. These disabilities include hearing or vision loss, and cerebral palsy.

Did you know?

The heart is located in the center of the chest, with part of it tipped slightly so that it taps against the left side of the chest.

Did you know?

Pregnant women usually experience a heightened sense of smell beginning late in the first trimester. Some experts call this the body's way of protecting a pregnant woman from foods that are unsafe for the fetus.

Did you know?

The most dangerous mercury compound, dimethyl mercury, is so toxic that even a few microliters spilled on the skin can cause death. Mercury has been shown to accumulate in higher amounts in the following types of fish than other types: swordfish, shark, mackerel, tilefish, crab, and tuna.

Did you know?

Lower drug doses for elderly patients should be used first, with titrations of the dose as tolerated to prevent unwanted drug-related pharmacodynamic effects.

two-host life cycles of plasmodium two-host life cycles of plasmodium
Animal life cycles Animal life cycles
Martin Van Buren, sitting uncomfortably for this engraving, would eventually ascend to the presidenc Martin Van Buren, sitting uncomfortably for this engraving, would eventually ascend to the presidenc
A member of the Uru-Eu-Wau-Wau tribe in Brazil. The way of life of the world’s few remaining rain ... A member of the Uru-Eu-Wau-Wau tribe in Brazil. The way of life of the world’s few remaining rain ...
Sample of a business card design. Sample of a business card design.
In situ hybridization of a zebrafish embryo 48 hours after fertilization In situ hybridization of a zebrafish embryo 48 hours after fertilization
Video: Structures that affect circulation - venous return

For a complete list of videos, visit our video library