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The mass of a paperclip is 7.0 * 10^(-4) mg. If a box of paper clips has (3.18 10^(4) paper clips, determine the total mass of the paper clips in the box. Write the final answer in scientific notation with the correct number or significant digits.
2.2 * 10^1 mg
2 * 10^1 mg
2.226 * 10^1 mg
2.23 * 10^0 mg