relative atomic mass, percentage comp. Flashcards

1
Q

what is relative atomic mass?

A

average mass of all stable isotopes

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2
Q

how is relative atomic mass calculated?

A

from the percentage composition

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3
Q

formula for relative atomic mass (Ar)

A

Ar = (percent x isotopic number) + (percent x isotopic number) divided by 100

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4
Q

how to calculate percentage comp.

A

(component mass / total mass) x 100

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5
Q

how to calculate percentage comp. of elements in a compound

A

element mass = (element % x mass of compound) divided by 100

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6
Q

examples ofgravimetric analysis in industry

A

mining industry for mineral ores this is important because:
It provides accurate quantification, which are precise and accurate measurements of specific elements or compounds within a mineral ore, which determines the ore’s value and usability.
Gravimetric analysis is also a tool used in the nutrition and food industry for these reasons:
It provides accurate and precise measurements of essential nutrients such as proteins, fats, carbohydrates, vitamins, and minerals.

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