Pregunta
- If Ar for Cl is 35.45 , what is the ratio of
present in a
sample of Cl atoms containing naturally occurring Cl ?
- Calculate the value of Ar for naturally occurring Cu if the
distribution of isotopes is
and
; accurate
masses are 62.93 and 64.93 .
- Why in question 2 is it adequate to write
rather than
?
- Calculate Ar for naturally occurring Mg if the isotope distribution
is
and
; accurate masses
are
and 25.98 .
sample of Cl atoms containing naturally occurring Cl ?
distribution of isotopes is
masses are 62.93 and 64.93 .
is
are
Ask by Gibbs Daniels. in Ghana
Jan 23,2025
Solución de inteligencia artificial de Upstudy
Respuesta verificada por el tutor
Responder
-
The ratio of
is approximately 3.44 : 1. -
The atomic mass of naturally occurring copper is 63.56 u.
-
It’s sufficient to use
instead of because the element’s identity is already clear from the chemical symbol. -
The atomic mass of naturally occurring magnesium is 24.31 u.
Solución

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Bonus Knowledge
To determine the ratio of
in a sample of chlorine, it’s important to remember that natural chlorine is primarily composed of about 75.76%
and 24.24%
. This leads to a ratio of approximately 3.12:1 when simplifying these percentages. So, if you’re ever in a chemistry jam and need to remember isotope ratios, this handy hint should stick!
When calculating the atomic mass (Ar) for naturally occurring copper, you’re looking at a weighted average based on the percentages and accurate masses provided. The calculation goes like this:
. Plugging in those numbers gives you an Ar of approximately 63.55 for copper. It’s like assembling a delicious chemistry smoothie by mixing different isotope “flavors”!
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