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ladessa [460]
3 years ago
11

How many moles of bromine atoms are in 2.60×10^2 grams of bromine?

Chemistry
1 answer:
AlladinOne [14]3 years ago
4 0
Your answer is 3.25 moles of Bromine

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A chemist determined by measurements that 0.050 moles of aluminum participated in a chemical reaction. Calculate the mass of alu
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13.5 g

Explanation:

This question is solved easily if we remember that the number of moles is obtained by dividing the mass into the atomic weight or molar mass depending if we are referring to elements or molecules.

Therefore, the mass of aluminum in the reaction will the 0.050 mol Al times the atomic weight of aluminum.

number of moles = n = mass of Al / Atomic Weight Al

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We have three significant figures in 0.050 and therefore we should have three significant figures in our answer.

           

8 0
3 years ago
BRANILEST IF RIGHT <br><br> WAVE A OR B
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Read 2 more answers
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