Nirmion
Pomoc Znajdź narzędzie

CHEMISTRY / NUCLEAR CHEMISTRY

Two Isotope Abundance Calculator

Infer both isotope abundances from two isotope masses and their measured average mass. Review the equation, substituted values, assumptions, and result in one guided chemistry workspace.

  • 01 Calculated in this tab
  • 02 Values stay in this browser tab
  • 03 Use boundary

Conversion input

Known value

Filter by unit name, symbol, or code. Your current selections remain available.

Preparing the calculator...

Use boundary

Calculation path

Infer both isotope abundances from two isotope masses and their measured average mass. The page evaluates the displayed equation from your supplied values and presents both symbolic and substituted KaTeX working so the arithmetic can be checked.

Calculation path

x=(m2-m_avg)/(m2-m1)

What you provide

What you provide

  • Measured average atomic mass expressed in u, using the same scenario as the other inputs
  • First isotope mass expressed in u, using the same scenario as the other inputs
  • Second isotope mass expressed in u, using the same scenario as the other inputs

What you receive

What you receive

  • First isotope abundance in % from the stated equation
  • A symbolic formula plus substituted working with your values
  • Visible assumptions, field guidance, and an authoritative learning reference

Use boundary

Choose the maximum decimal places shown. This does not increase source accuracy.

The sample contains exactly two isotopes and the average lies between their masses.

Use internally consistent units and retain extra precision when carrying the result into another calculation.

Reviewed reference factors

Reviewed reference factors