What is the Mass Ratio Between 12C and 13C Atoms?

In summary, the conversation discusses the ratio of mass between a 12C atom and a 13C atom. The atomic weight of C-12 is 12.011 and the atomic weight of C-13 is 13. The solution given in the book is .92286, while the attempted solution calculated is .9239230769. There is confusion over how to set up the problem and what values to use.
  • #1
Lorek
8
0

Homework Statement



What is the ratio of mass of a 12C atom to a 13C atom

The Attempt at a Solution



12.011/13 = .9239230769

Solution given at back of book = .92286
 
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  • #2
Why 12.011? Why 13?
 
  • #3
The atomic weight of C-12 is 12.011, the atomic weight of C-13 is 13. I divided the weight of C-12 by the weight of the C-13 to get a ratio.
 
  • #4
12.011 is not an atomic weight of C-12, just like 35.45 is not a mass of Cl atom.
 
  • #5
Ok, I understand that the atomic weight's are weighted averages. I just used the atomic weight because it asks for a ratio between two atoms. As for how to set it up I don't have the slightest idea how to set it up, no example problems to model form, nor solution steps.
 

FAQ: What is the Mass Ratio Between 12C and 13C Atoms?

What is the Beginner's Mass Ratio Problem?

The Beginner's Mass Ratio Problem is a theoretical problem in rocket science that deals with the optimum ratio of fuel to payload for a rocket to achieve maximum velocity. It is often used as a teaching tool to introduce students to the concept of rocket propulsion.

Why is the Beginner's Mass Ratio Problem important?

The Beginner's Mass Ratio Problem is important because it helps us understand the fundamental principles of rocket propulsion and the trade-off between fuel and payload. It also serves as the foundation for more complex rocket equations and calculations.

How is the Beginner's Mass Ratio Problem solved?

The Beginner's Mass Ratio Problem is solved using the Tsiolkovsky rocket equation, which takes into account the specific impulse of the rocket engine, the mass of the rocket with and without fuel, and the desired velocity. The equation can be solved using algebraic methods or computer simulation.

What factors affect the solution to the Beginner's Mass Ratio Problem?

The solution to the Beginner's Mass Ratio Problem is affected by several factors including the specific impulse of the rocket engine, the desired velocity, the mass of the rocket with and without fuel, and the type of propellant used. Other factors such as air resistance and gravitational pull may also play a role in real-world scenarios.

How is the Beginner's Mass Ratio Problem used in real-life rocket design?

The Beginner's Mass Ratio Problem is used in real-life rocket design as a starting point to determine the initial ratio of fuel to payload. However, real-life scenarios may require adjustments to the ratio due to various external factors. Engineers also use more complex equations and simulations to achieve optimal performance and efficiency.

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