Final answer:
To calculate the number of moles in a sample, we use the formula: Moles = mass (g) / molar mass (g/mol). For BaOH, the molar mass is 261.34 g/mol. So, for 308 g of BaOH, the number of moles is 1.179 moles.
Step-by-step explanation:
To calculate the number of moles in a sample, we use the formula:
Moles = mass (g) / molar mass (g/mol)
For BaOH, the molar mass is 261.34 g/mol. So, for 308 g of BaOH:
Moles = 308 g / 261.34 g/mol = 1.179 moles
Therefore, the answer is not given in the options provided. The correct answer would be 1.179 moles.