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Allushta [10]
3 years ago
9

Help me out please. please

Chemistry
2 answers:
Musya8 [376]3 years ago
8 0
#1 A #b all of the above
Nana76 [90]3 years ago
6 0
I think that question 2 is all of the above. I’m not sure about Question 1. I think that it is also all of the above but I could be wrong.
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A chemist adds of a iron(III) bromide solution to a reaction flask. Calculate the mass in kilograms of iron(III) bromide the che
vaieri [72.5K]

Answer:

0.246 kg

Explanation:

There is some info missing. I think this is the original question.

<em>A chemist adds 370.0mL of a 2.25 M iron(III) bromide (FeBr₃) solution to a reaction flask. Calculate the mass in kilograms of iron(III) bromide the chemist has added to the flask. Be sure your answer has the correct number of significant digits.</em>

<em />

We have 370.0 mL of 2.25 M iron(III) bromide (FeBr₃) solution. The moles of FeBr₃ are:

0.3700 L × 2.25 mol/L = 0.833 mol

The molar mass of iron(III) bromide is 295.56 g/mol. The mass corresponding to 0.833 moles is:

0.833 mol × 295.56 g/mol = 246 g

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246 g × (1 kg/1000 g) = 0.246 kg

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