asianpatriot2086 asianpatriot2086

12-11-2017
Chemistry

contestada

Find the average atomic mass for li if 7.5% of li atoms are 6li with a mass of 6.0151223 amu and 92.5% are 7li with a mass of 7.0160041 amu.

Respuesta :

barnuts barnuts

22-11-2017

We solve this problem by taking the average atomic mass which is solved by the sum of the product of individual atomic mass and mass fraction, that is:

atomic mass = 6.0151223 amu * 0.075 + 7.0160041 amu * 0.925

atomic mass = 6.4898 amu

Answer Link

Otras preguntas

The unit for measuring the rate at which light energy is radiated from a source is the A. Angstrom. c. lumen. b. lux. d. candela.

what is the sum of the quotients of 25x^2/5x and the quotient of 8x^2/x

In what way was reagan able to influence national policy decad3s after he was no longer president?

How much energy is transferred when one organism consumes another organism? a. 10% b. 90% c. 80% d. 5%

This leader of the Protestant Reformation was known for establishing the Church of Scotland. Calvin Hus Knox Luther Wycliffe Zwingli

in which sentence is a homophone used correctly

Smith sold 45 of his DVDs and purchased 10 more. If Smith has 15 DVDs now, how many DVDs did he have to begin with?

The turning point or peak of greatest suspense in a play is called the _____. climax exposition plot monologue

What does the word aspects mean in this sentence. Lee solved all aspects of the problem a. Angles B. Pledges C. Entrances D. Corrections What does the word

The theory of biological evolution is generally accepted by the modern scientific community as true: True or False?