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3. The allowed limit for copper ions in tap water is 1.3ppm. If 1 gallon (3.78L) of water (density 1.00g/mL ) was found to contain

3. The allowed limit for copper ions in tap water is 1.3ppm. If 1 gallon (3.78L) of water (density 1.00g/mL ) was found to contain 0.000456 mol of copper, what is the ppm? is it below or above the allowed limit

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