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]
3 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]3 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
Flammable materials, like alcohol, should never be
jarptica [38.1K]

Answer:

b.open flame because it is fundamental end of the alcohol mixes in with the flame then it will become a bigger fire

5 0
3 years ago
Which product of prime polynomials is equivalent to 36x3 – 15x2 – 6x?
monitta
The product of prime polynomials is equivalent to 36x3 – 15x2 – 6x is letter B which is 3x(3x – 2)(4x 1). Below is the solution. 

3x(3x - 2) (4x + 1)
= 9x2 - 6x (4x + 1)
= 36x3 + 9x2 + -  24x2 - 6x
= 36x3 - 15x2 - 6x
       
3 0
3 years ago
Read 2 more answers
Calculate the volume of a cube with the following measurements length= 5cm height =10 cm width=16 cm
Anna35 [415]

Answer:

800 cubic cm

Explanation:

3 0
2 years ago
2 Points
barxatty [35]

Answer:

it's food engineering obviously

4 0
3 years ago
a chef is using honey in a recipe. The honey is too thick to pour out of the jar. How could the chef make the honey easier to po
Andrej [43]
Heat the jar of honey up enough to where you can pour it
5 0
3 years ago
Read 2 more answers
Other questions:
  • Which equation obeys the law of conservation of mass?
    14·2 answers
  • Magnesium chloride is a salt formed with ionic bonds between one magnesium ion and two chloride ions. Magnesium has two electron
    13·1 answer
  • Determine the molecular geometry about the left carbon atom in ch3co2ch3.
    6·2 answers
  • Examine the incomplete statement.
    11·2 answers
  • PLEASE HELP ME WITH THESE TWO QUESTIONS!!MY CHEMISTRY QUIZ IS DUE AT MIDNIGHT:(
    13·1 answer
  • PLZ HELP! FAST! Extreme fast! PLZ! DUE TOMORROW! Please answer ASAP!
    13·2 answers
  • Why are the terrestrial planets closest to the sun while the gas planets are farther from the sun?
    14·1 answer
  • A teaspoon of dry coffee crystals dissolves when mixed in a cup of hot water. This process produces a coffee solution. Which ter
    7·2 answers
  • What’s the mass of 1.5 moles of c6h14
    13·2 answers
  • Suppose you used 0.5 M NaOH to titrate your vinegar sample instead of 0.1 M. What effect does the concentration of base added ha
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!