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.
number of moles in 0.0073kg of tantalum
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