the atomic mass of the element cobalt is 58.933 atomic mass units. if a scientist measures the mass at 57.514 atomic mass units, what is the percent error?

The percentage error is -2.4 %

Explanation:

The percentage error is calculated by the following formula;

The given parameters are;

The atomic mass of cobalt = 58.933 amu. =  The exact value

The mass of cobalt as measured by the scientist = 57.514 = The approximate value

Therefore, the percentage error is given plugging in the values into the above equation for percentage error as follows;

The percentage error = -2.4 %.

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