Chemistry

Chemistry, 23.10.2020 18:20, batmandillon21

An element has two isotopes. One isotope has a percent abundance of 75.0% and a mass number of 25 amu. The second isotope has a percent abundance of 25.0% and a mass number of 28 amu. What is the average atomic mass of the element?

answer

Answers: 1

Show answers

Other questions on the subject: Chemistry

Chemistry, 22.06.2019 00:20, paulawells11

What are the spectator ions in 2h+ + so42- + ca2+ + 2r → caso4 + 2h+ + 21?

Answers: 1

Chemistry, 22.06.2019 06:30, cadenhuggins2

Predict whether the changes in enthalpy, entropy, and free energy will be positive or negative for the boiling of water, and explain your predictions. how does temperature affect the spontaneity of this process?

Answers: 1

Chemistry, 22.06.2019 10:00, deena7

How many grams of co(g) are there in 74.5 ml of the gas at 0.933 atm and 30o c?

Answers: 1

Chemistry, 22.06.2019 12:00, kassidy49

An atom's configuration based on its number of electrons ends at 3p4. another atom has seven more electrons. starting at 3p, what is the remaining configuration? 3p63d34s2 3p43d54s2 3p64s23d3 3p44s23d

Answers: 3

Do you know the correct answer?

An element has two isotopes. One isotope has a percent abundance of 75.0% and a mass number of 25 am...

Questions in other subjects:

Konu

Business, 26.11.2019 02:31

The definition of internal control developed by the committee of sponsoring organizations (coso) includes controls related to the reliability of financial reporting, the effectiven...

Konu

Chemistry, 26.11.2019 02:31

Ferris & mona used the orp sensor to titrate a ferrous ammonium sulfate solution, (nh4)2fe(so4)2 with kmno4 titrant. they titrated a 15.00 ml aliquot of the fe+2 soluti...

Konu

Business, 26.11.2019 02:31

All kiwi ltd. (a new zealand-based company) has a wholly-owned subsidiary in malaysia whose manager is being evaluated on the basis of the variance between actual profit and budget...

Konu

Chemistry, 26.11.2019 02:31

Achemist carefully measures the amount of heat needed to raise the temperature of a 894.0 g sample of a pure substance from -5.8c to 17.5c. the experiment shows that 4.90kjs of hea...

Konu

Computers and Technology, 26.11.2019 02:31

A(n) is a program that converts the output from your computer into a specific format and saves the result to a portable file that looks like the printed page....

Konu

Business, 26.11.2019 02:31

Under the allowance method, when a specific account is written off: a. total assets will be unchanged b. total assets will decrease c. net income will decr...

Konu

Mathematics, 26.11.2019 02:31

X+4y=12 -x+6y=8 addition method...

Konu

Social Studies, 26.11.2019 02:31

Stephen recently purchased electronic equipment from fournotts corp. the equipment malfunctioned during its first use. if stephen lodges a complaint with the federal trade commissi...

Konu

Biology, 26.11.2019 02:31

In conjugation, what structure serves as a bridge between two bacterial cells?...

Konu

Chemistry, 26.11.2019 02:31

When iron (iii) oxide combines with sulfuric acid h2 s04 the product formed are water and iron (iii) sulfate. what is the coefficient needed for water in the balanced equation...

Other tasks in the category: Chemistry More task