Discovering the Element Bromine in Different Compounds

Understanding Bromine Atoms in Various Compounds

Bromine is a halogen element with the atomic number 35 and the symbol Br. It is a red-brown liquid at room temperature, producing a pungent odor. Bromine is often found in nature as soluble bromide salts in seawater. Let's explore different compounds containing bromine and determine which one has the most bromine atoms.

Analysis of Compounds

15.6 g of sodium bromide

Sodium bromide, with the formula NaBr, is a white, crystalline powder. To determine the number of bromine atoms in 15.6 g of sodium bromide, we need to calculate the molar mass of NaBr and then find the molar ratio of bromine to NaBr.

0.0900 mol of Br2(l)

Br2 is the molecular formula for elemental bromine, a diatomic molecule. Given the number of moles of Br2, we can directly determine the number of bromine atoms in this sample.

900. mg of calcium bromide

Calcium bromide, CaBr2, is a white solid. Similar to sodium bromide, we need to convert the mass of calcium bromide to moles to find the number of bromine atoms in this compound.

25.0 g of hypobromous acid

Hypobromous acid, HBrO, is a weak acid. By calculating the molar mass of HBrO and converting grams to moles, we can determine the number of bromine atoms present.

Conclusion

Among the given compounds, the sample with 0.0900 mol of Br2(l) contains the most bromine atoms. Molecular bromine consists of two bromine atoms per molecule, making it the compound with the highest bromine atom count compared to the other options.