Atom & Molecular Density of 235-U & Water Solution

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Discussion Overview

The discussion revolves around calculating the atom density of 235-U in a homogeneous solution with water, specifically focusing on a solution containing 10g of 235-U per liter. Participants explore the relationships between the densities of the two substances and their molecular densities.

Discussion Character

  • Homework-related
  • Mathematical reasoning

Main Points Raised

  • One participant presents a method to convert the concentration of 235-U from grams per liter to grams per cubic centimeter and establishes a relationship between the densities of 235-U and water.
  • Another participant confirms the calculation of molecular density and suggests calculating the atom density by considering the number of atoms in each water molecule.
  • A later reply provides calculated atom densities for both 235-U and water, indicating that the atom density of water is higher than that of 235-U.
  • One participant retracts their previous statement, acknowledging that the earlier answers provided by others are correct.

Areas of Agreement / Disagreement

Participants do not reach a consensus on the final calculations, as there are corrections and retractions, indicating some uncertainty in the results presented.

Contextual Notes

There are unresolved aspects regarding the calculations of atom density and the assumptions made about the number of atoms in water molecules, which may affect the final results.

matt222
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Homework Statement


homogeneous solution of 235-U and water, contains 10g of 235-U/L of solution, what is the atom density of 235-U and the molecular density of water


Homework Equations





The Attempt at a Solution


first converting 10g/L to 0.01g/cm^3, density of water 1g/cm^3

N(235)/N(H2O)=density of U*M(H2O)/density of H2O*M(U)

N(235)/N(H2O)=7.66*10^-4

i stopped here can anyone giude me
 
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You have calculated the molecular density correctly now calculate the atom density taking into account number of atoms in each water molecule.
 
I calculate it I realize that water atoms density it higher that U235, \U=2.56E19.,/WATER=3.35E22
 
Oh my bad - don't look at my previous post. The last answers you gave are totally correct.
 

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