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
olya-2409 [2.1K]
2 years ago
5

The element gallium has an atomic weight of 69.7 and consists of two stable isotopes gallium -69 and gallium -71. The isotope ga

llium -69 has a mass of 68.9 amu and a percent natural abundance of 60.4 %. The isotope gallium -71 has a percent natural abundance of 39.6%. What is the mass of gallium -71?
Chemistry
1 answer:
BigorU [14]2 years ago
3 0

Answer:

The answer to your question is Gallium-71 = 70.9202 amu

Explanation:

Gallium atomic weight = 69.7

Gallium-69 = 68.9 amu    abundance = 60.4%

Gallium-71 =     x                abundance = 39.6%  

To solve this problem just write an equation and solve it for the mass of gallium-71.

Equation

Gallium = Gallium-69(abundance) + Gallium-71(abundance)

Substitution

69.7 = (68.9)(0.604) + Gallium-71(0.396)

69.7 = 41.6156 + Gallium-71(0.396)

Gallium-71(0.396) = 69.7 - 41.6156

Gallium-71(0.396) = 28.0844

Gallium-71 = 28.0844/0.396

Gallium-71 = 70.9202 amu

You might be interested in
Which of the following measurements is equal to 2,300 dL
kolbaska11 [484]
230,000. and that weird u
hope this helps
8 0
3 years ago
Please help me..!!!!!!!!!!!!!
Viefleur [7K]

Answer:

The answer you selected is correct (A)have

Explanation:

Red blood cells  one goal which is to carry oxygen throughtout your body.. without it you would die to lack of oxygen.

5 0
2 years ago
Identify the element using the Bohr model below.​
Maurinko [17]
Nitrogen I believe . I need 20 characters.
3 0
2 years ago
Which of the following correctly describes one way that photosynthetic plants are involved in the carbon cycle? Choose 1 answer:
brilliants [131]

Answer:

The correct answer is - (Choice A) A Photosynthetic plants can move carbon from the atmosphere into an ecosystem’s food web.

Explanation:

Photosynthesis is the process performed by photosynthetic or green plants in presence of light atmospheric carbon dioxide and water converted into glucose (6 carbon compound) and oxygen.

This glucose or sugar is utilized by the plants that are producers in the ecosystem food web. These producers are fed by consumers and carbon molecules transfer from all the trophic levels in the food chain or food web in the process.

7 0
3 years ago
Which structure of the organism work together to carry out all of its life functins?
KiRa [710]
Each cell does not perform every life function on its own. Instead, the cells work together to carry out the life functions of the organism.
8 0
3 years ago
Other questions:
  • The average propane cylinder for a residential grill holds approximately 18 kg of propane. how much energy (in kj) is released b
    6·1 answer
  • When aqueous solutions of ________ are mixed, a precipitate forms.
    10·1 answer
  • Each compound listed is soluble in water. For each compound, do you expect the resulting aqueous solution to conduct electrical
    10·1 answer
  • If 2.112g of Fe2O3 reacts with 0.687g of Al, how much pure Fe will be produced?
    9·1 answer
  • Which scenario ensures that Earth’s global temperature is maintained?
    14·2 answers
  • How many atoms are in 3 moles of carbon?
    9·2 answers
  • Answer these please! 23 points!
    15·1 answer
  • HELPPPPPP PLZZZz i'll mark brainliest! Infrared (IR) and ultraviolet (UV) light. But above 29°C, the coating on the glass underg
    8·1 answer
  • Why is electrical conductivity a resourceful property of metals like copper, silver, and aluminum?
    8·1 answer
  • The cubic centimeter, which is often abbreviated as cc or cm3, is a metric unit for
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!