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

Author Question: The isotope lithium-7 has a mass of 7.0160 atomic mass units, and the isotope lithium-6 has a mass ... (Read 654 times)

FButt

  • Hero Member
  • *****
  • Posts: 519
on: Aug 27, 2018
The isotope lithium-7 has a mass of 7.0160 atomic mass units, and the isotope lithium-6 has a mass of 6.0151 atomic mass units.
 
  Given the information that 92.58 percent of all lithium atoms found in nature are lithium-7 and 7.42 percent are lithium-6, calculate the atomic mass of lithium, Li (atomic number 3).
  A) 7.0160 amu
  B) 6.942 amu
  C) 6.495 amu
  D) 13.031 amu

Question 2

The American Chemistry Council is ________.
 
  A) a society of chemistry educators
  B) a special interest group
  C) an organization of environmental lawyers
  D) an advisory panel to the U.S. Congress


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

wergv

  • Sr. Member
  • ****
  • Posts: 365
Reply #1 on: Aug 27, 2018
Answer to Question 1

B

Answer to Question 2

B


FButt

  • Hero Member
  • *****
  • Posts: 519
Reply #2 on: Aug 27, 2018
Thank you!


wergv

  • Sr. Member
  • ****
  • Posts: 365
Reply #3 on: Aug 27, 2018
Always glad to help...


« previous next »
 

Did you know?

The newest statin drug, rosuvastatin, has been called a superstatin because it appears to reduce LDL cholesterol to a greater degree than the other approved statin drugs.

Did you know?

Medication errors are more common among seriously ill patients than with those with minor conditions.

Did you know?

The ratio of hydrogen atoms to oxygen in water (H2O) is 2:1.

Did you know?

Women are two-thirds more likely than men to develop irritable bowel syndrome. This may be attributable to hormonal changes related to their menstrual cycles.

Did you know?

Allergies play a major part in the health of children. The most prevalent childhood allergies are milk, egg, soy, wheat, peanuts, tree nuts, and seafood.

Center of Mass of a Binary Star System Center of Mass of a Binary Star System
Mass spectrometry (MS) for Mass, Sequence, and Amino Acid Analyses of Purified Proteins Mass spectrometry (MS) for Mass, Sequence, and Amino Acid Analyses of Purified Proteins
Mass Wasting Forms Mass Wasting Forms
You heat 3.952 g of a mixture of Fe3O4 and FeO to form 4.162 g Fe2O3. The mass of oxygen ... You heat 3.952 g of a mixture of Fe3O4 and FeO to form 4.162 g Fe2O3. The mass of oxygen ...
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
What is the isotopic atomic mass of an isotope if 9.7023 1022 atoms weighs 4.0256 g? What is the isotopic atomic mass of an isotope if 9.7023 1022 atoms weighs 4.0256 g?
Video: Phases of an Action Potential - Resting Potential, Threshold, Rising, Falling, & Recovery Phases

For a complete list of videos, visit our video library