Multiple Choice
Which of the following chemical formulas represents a molecule?
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3. Chemical Reactions
Molecular Formula
Multiple Choice
Which of the following is the correct molar mass for the molecule BrCl?
A
79.90 g/mol
B
100.45 g/mol
C
160.90 g/mol
D
35.45 g/mol
Verified step by step guidance1
Identify the elements present in the molecule BrCl, which are bromine (Br) and chlorine (Cl).
Find the atomic masses of each element from the periodic table: bromine (Br) has an atomic mass of approximately 79.90 g/mol, and chlorine (Cl) has an atomic mass of approximately 35.45 g/mol.
Add the atomic masses of bromine and chlorine to find the molar mass of BrCl using the formula: \(\text{Molar mass of BrCl} = \text{Atomic mass of Br} + \text{Atomic mass of Cl}\).
Substitute the values into the formula: \(\text{Molar mass of BrCl} = 79.90\, \text{g/mol} + 35.45\, \text{g/mol}\).
Sum the values to get the total molar mass of BrCl, which will help you identify the correct answer from the given options.
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