1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Law Incorporation [45]
1 year ago
15

Calculate the average atomic mass of Mg if the naturally occurring isotopes are Mg - 24, Mg - 25 and Mg - 26. Their masses and a

bundances are as follows:
Mg - 24 relative atomic mass = 23.985 amu % abundance = 78.70%
Mg - 25 relative atomic mass = 24.986 amu % abundance = 10.13%
Mg - 26 relative atomic mass = 25.983 amu % abundance = 11.17%
Chemistry
1 answer:
Elenna [48]1 year ago
5 0

Answer:

24.309

Explanation:

mass×percentage+.. = average amu

23.985×78.7/100+24.986×10.13/100+25.983×11.17/100

to three decimal places

=24.309

You might be interested in
Explain the relationship between the mole, particles, grams, and Liters.
Mamont248 [21]

Answer:A mole is an arbitrary number of molecules in a single unit - refer to avogadro's number. Essentially, 1 mole is 6.022x10^23 molecules for ALL molecules or atoms, however one must remember that not all atoms/molecules are the same size, this is where mass comes into play. When you measure out 2 grams of carbon powder, there will be a lot more molecules present than if you weighed out 2 grams of thorium powder; this is because carbon is much smaller - kind of like a car filled with clowns, one given car can hold a lot of small clowns but only a few big ones; so the same volume is occupied but the amount of substance (clowns) varies on their own size. The arbitrary mass (relative to the hydrogen atom) for a molecule is the sum of its atomic components' atomic masses; e. g. C2H6's will have 2x12.00 (carbon) + 6x1.01 (hydrogen) = ~30 grams / mole.

Explanation:

8 0
3 years ago
Help me answer this please
Vlad1618 [11]
Its a scam dont press the link
3 0
3 years ago
As more bulbs are connected in series in a circuit, what happens to the brightness with which each glows?
madam [21]
They dim unless more volts are added (batteries")
8 0
3 years ago
Read 2 more answers
What is the site of ATP synthesis
Fynjy0 [20]
ATP is synthesized in the mitochondria.
The mitochondria is known to be the powerhouse of a cell.


Hope it helped!
6 0
3 years ago
Read 2 more answers
PLEASE HELP ME ASAP AND DONT GUESSSS!!!!!!!
Rama09 [41]

Answer:

Digestive

Explanation:

It is necessary for the body to function so it is technically an organ

3 0
3 years ago
Read 2 more answers
Other questions:
  • Self explanatory what’s the answers ?
    13·1 answer
  • What factors should be taken into consideration when choosing the ideal solvent for the crystallization of a particular compound
    5·1 answer
  • Given the E0 values of the following two half-reactions: Zn  Zn2+ + 2e- E0 = 0.763 volt Fe  Fe2+ + 2e- E0 = 0.441 volt a) Writ
    11·1 answer
  • 0.03 mol of potassium nitrate, KNO3 dissolved in 1.2 dm3 distilled water. What is the solubility of potassium nitrate, KNO3 ?​
    15·1 answer
  • Which state of matter is made up of electrically charged particles?
    13·2 answers
  • A geologist tests a rock containing calcium oxide by reacting it with hydrochloric acid. Water and calcium chloride form. What b
    8·2 answers
  • I have a chemistry question that I am needing help on please?​
    5·1 answer
  • 1.3188g of antacid is weighed and mixed with 75.00 mL of excess 0.1746 M HCl. The excess wcid required 27.20 mL of 0.09767 M NaO
    7·1 answer
  • Oxidation is now defined in terms of change of oxidation number. Explore how earlier definitions of oxidation and reduction may
    5·1 answer
  • Explain why copper 2 oxide is a base although it does not turn litmus paper to blue​
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!