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Diketahui massa 1 atom oksigen adalah 2,70 x 10–23...

Diketahui massa 1 atom oksigen adalah 2,70 x 10–23 g. Tentukan berapakah Ar atom O jika massa atom C adalah 1,99 x 10–23 g?space

Jawaban:

menentukan massa Ar O:

begin mathsize 14px style Ar space O space equals fraction numerator massa space rata bond rata space atom space unsur space O over denominator 1 over 12 massa space satu space atom space unsur space C presuperscript 12 end fraction Ar space O space equals fraction numerator 2 comma 70 cross times 10 to the power of negative sign 23 end exponent over denominator 1 over 12 cross times 1 comma 99 cross times 10 to the power of negative sign 23 end exponent end fraction Ar space O space equals fraction numerator 2 comma 70 cross times 10 to the power of negative sign 23 end exponent cross times 12 over denominator 1 comma 99 cross times 10 to the power of negative sign 23 end exponent end fraction Ar space O space equals fraction numerator 32 comma 4 cross times 10 to the power of up diagonal strike negative sign 23 end strike end exponent over denominator 1 comma 99 cross times 10 up diagonal strike blank to the power of negative sign 23 end exponent end strike end fraction Ar space O space equals 16 comma 28 end style 

Jadi, Ar atom O adalah 16,28.

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