Amount from mass and molar mass
A sample in a mineral sample analysis has mass \(3\,\text{g}\) and molar mass \(30\,\text{g mol}^{-1}\). Calculate the amount of substance. Use the diagram labels first, then answer carefully. Enter the answer and choose the interpretation that matches the chemistry.
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Worked practice: chemistry evidence and answer
Use the chemical evidence first, then enter the result and interpretation that match it.