What are the masses of the four different BrClBrCl molecules? Express the masses in atomic mass units using six significant figu
res, in decreasing numeric order (highest to lowest), separated by commas.
1 answer:
Answer ; The question is missing in some details, but here are he details ;
The two naturally occurring isotopes of bromine are
81Br (80.916 amu, 49.31%) and
79Br (78.918 amu, 50.69%).
The two naturally occurring isotopes of chlorine are
37Cl (36.966 amu, 24.23%) and
35Cl (34.969 amu, 75.77%).
Bromine and chlorine combine to form bromine monochloride, BrCl.
Explanation:
The detaile calculation is as shown in the attachment.
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<u>Answer:</u>
For 1: The correct answer is 407.97 grams.
For 2: The correct answer is 76.72 grams.
<u>Explanation:</u>
- <u>For 1:</u>
We are given the molarity of HCl, to find the moles of HCl, we use the formula:
We are given:
Molarity = 1.6 M
Volume = 7.8 L
Putting values in above equation, we get:
For the given reaction:
By Stoichiometry of the reaction:
2 moles of HCl reacts with 1 mole of zinc metal.
So, 12.48 moles of HCl react with = of Zinc metal.
To calculate the mass of zinc metal, we use the formula:
.....(1)
Molar mass of Zinc metal = 65.38 g/mol
- <u>For 2:</u>
We are given that 298 grams of 83.1 % by mass of iron (II) nitrate solution are present.
So, mass of Iron (II) nitrate solution will be =
Molar mass Iron (II) nitrate = 180 g/mol
Putting values in equation 1, we get:
For the following reaction:
By Stoichiometry of the reaction:
3 moles of produces 3 moles of iron metal.
So, 1.37 moles of will produce =
of iron metal.
To calculate the mass of zinc metal, we equation 1: