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 676 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?

Liver spots have nothing whatsoever to do with the liver. They are a type of freckles commonly seen in older adults who have been out in the sun without sufficient sunscreen.

Did you know?

In inpatient settings, adverse drug events account for an estimated one in three of all hospital adverse events. They affect approximately 2 million hospital stays every year, and prolong hospital stays by between one and five days.

Did you know?

Acetaminophen (Tylenol) in overdose can seriously damage the liver. It should never be taken by people who use alcohol heavily; it can result in severe liver damage and even a condition requiring a liver transplant.

Did you know?

People who have myopia, or nearsightedness, are not able to see objects at a distance but only up close. It occurs when the cornea is either curved too steeply, the eye is too long, or both. This condition is progressive and worsens with time. More than 100 million people in the United States are nearsighted, but only 20% of those are born with the condition. Diet, eye exercise, drug therapy, and corrective lenses can all help manage nearsightedness.

Did you know?

Eating carrots will improve your eyesight. Carrots are high in vitamin A (retinol), which is essential for good vision. It can also be found in milk, cheese, egg yolks, and liver.

The Mass of Impacts on Earth The Mass of Impacts on Earth
A Listing of Repeat Units for 10 of the More Common Polymeric Materials A Listing of Repeat Units for 10 of the More Common Polymeric Materials
A 2.000 g sample of water contains 11.19% H by mass and 88.81% O by mass. What mass of H will ... A 2.000 g sample of water contains 11.19% H by mass and 88.81% O by mass. What mass of H will ...
What atomic or hybrid orbital on P make up the sigma bond between P and Cl in phosphorous ... What atomic or hybrid orbital on P make up the sigma bond between P and Cl in phosphorous ...
Expressing amounts of energy in different energy units is necessary to solve man Expressing amounts of energy in different energy units is necessary to solve man
Mass Extinctions Mass Extinctions
Video: Tuberculosis Testing

For a complete list of videos, visit our video library