The half life of `._92C^(238)` against `alpha` -decay is `4.5xx10^9` years. What is the activity of 1g sample of `._92C^(238)`?
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To find the activity of a 1g sample of Uranium-238 (U-238), we will follow these steps:
### Step 1: Determine the number of atoms (N) in 1g of U-238
The molar mass of U-238 is approximately 238 g/mol.
To find the number of moles in 1g of U-238:
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