number of moles in 0.0073kg of tantalum

1 answer

To find the number of moles in 0.0073 kg of tantalum, we first need to determine the molar mass of tantalum.

The atomic mass of tantalum is 180.94 g/mol, which means that one mole of tantalum weighs 180.94 grams. To convert this to kilograms, we divide by 1000:

180.94 g/mol / 1000 g/kg = 0.18094 kg/mol

This means that one mole of tantalum weighs 0.18094 kg.

To find the number of moles in 0.0073 kg of tantalum, we divide the mass by the molar mass:

0.0073 kg / 0.18094 kg/mol = 0.0403 mol

Therefore, 0.0073 kg of tantalum is equivalent to 0.0403 moles.