3 years ago

Why isn't the atomic mass of most of the elements on the Periodic Table an integer (not a decimal)?

Chemistry

1 answer:

elena55 [62]3 years ago

4 0

Answer:

Atomic mass is never an integer number for several reasons

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Write the full ground-state electron configuration for each element. (a) s:

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At 25 celsius, 1.00 ,ole of O2 was found to occupy a volume of 12.5 L at a pressure of 198 kPa. What value of the gas constant i

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Answer:

$R=8.301\frac{L*kPa}{mol*K}$

Explanation:

Hello,

In this case, assuming oxygen as an ideal gas, it is described by:

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Whereas the gas constant R is required, therefore, it is computed as shown below:

$R=\frac{PV}{nT} =\frac{198kPa*12.5L}{1.00mol*(25+273.15)K} \\\\R=8.301\frac{L*kPa}{mol*K}$

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3 years ago

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