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QUESTION 1 To make 500ml of a 250mm working solution (of a chemical with MW = 20g/mole) you would add g of the chemical to

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QUESTION 1 To make 500ml of a 250mm working solution (of a chemical with MW = 20g/mole) you would add g of the chemical to a 1 L graduate cylinder and then bring to volume of ml with ddH20. (Include only the number in your answer, because the unit is already specified in the question.) 2 points Save

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