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Determine the molecular formulas to which the following empirical formulas and molar masses pertain: Sn, 184.32 g/mol.

Options:
Option 1: SnO2
Option 2: Sn2O3
Option 3: SnO
Option 4: SnO3

1 Answer

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Final answer:

The molecular formula of an organic molecule with the empirical formula CH2 and a molar mass of 30 g/mol would be C2H4.

Step-by-step explanation:

The molecular formula of an organic molecule with the empirical formula CH2 and a molar mass of 30 g/mol would be C2H4. The empirical formula only provides the relative ratios of the different elements in a compound, while the molecular formula gives the actual number of atoms of each element in a molecule. In this case, since the molar mass is twice the empirical formula mass, we can conclude that the molecular formula is double the empirical formula.

To determine which molecular formula corresponds to the empirical formula Sn and the molar mass of 184.32 g/mol, you should compare the molar masses of the given options with the empirical formula mass of tin (Sn). The empirical formula mass of Sn is approximately 118.71 g/mol. Given the options, we have:

Option 1: SnO2 - The molar mass of SnO2 is 150.71 g/mol, which is not equal to 184.32 g/mol.

Option 2: Sn2O3 - The molar mass of Sn2O3 is 2(118.71) + 3(16.00) = 287.42 g/mol, which is not equal to 184.32 g/mol.

Option 3: SnO - The molar mass of SnO is 118.71 + 16.00 = 134.71 g/mol, which is not equal to 184.32 g/mol.

Option 4: SnO3 - The molar mass of SnO3 is 118.71 + 3(16.00) = 166.71 g/mol, which is not equal to 184.32 g/mol.

None of the options provided have a molar mass of 184.32 g/mol. Therefore, there seems to be an error, as none of the given options corresponds to the correct molar mass.

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