Calculate the Atomic Mass of Gallium If Gallium Has Two

question 35

Multiple Choice

Calculate the atomic mass of gallium if gallium has two naturally occurring isotopes with the following masses and natural abundances:
Ga-69 68.9256 u 60.11%
Ga-71 70.9247 u 39.89%

• A) 69.72 u
• B) 69.93 u
• C) 70.00 u
• D) 69.80 u
• E) 70.68 u

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Definitions:

Managers

Individuals responsible for planning, directing, and overseeing the operations and fiscal health of a portion of an organization or the entire organization.

Flexible Budgets

Budgets that adjust or flex according to changes in activity levels or other factors that influence operating expenses.

Unfavorable Variance

A situation where actual costs exceed budgeted or expected costs.

Efficiency Variance

The difference between the actual input used in production and the standard input that was expected to be used.