How much drying agent, MgSO4, would be needed for drying of 20mL dichloromethanesolution that contains 0.01% water, knowing that each mole of MgSO, can absorb 7 moles ofH;0?

Given: %(m/v) of water = 0.01 % Volume of dichloromethane = 20 mL And 1 mole of MgSO4 can absorb 7…

Answered: How much drying agent, M|SO4, would be…

Macroscale and Microscale Organic Experiments

7th Edition

ISBN:9781305577190

Author:Kenneth L. Williamson, Katherine M. Masters

Publisher:Kenneth L. Williamson, Katherine M. Masters

Chapter7: Extraction

Section: Chapter Questions

Problem 1Q

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Oral rehydration salts are stated to contain the following components: Sodium Chloride 3.5g Potassium Chloride 1.5g Sodium Citrate 2.9g Anhydrous Glucose 20.0g 8.342 g of oral rehydration salts are dissolved in 500 ml of water. 5 ml of the solution is diluted to 100 ml and then 5 ml is taken from the diluted sample and is diluted to 100 ml. The sodium content of the sample is then determined by flame photometry. The sodium salts used to prepare the mixture were: Trisodium citrate hydrate (C6H5Na3O7, 2H2O) MW 294.1 and sodium chloride (NaCl) NW 58.5. Atomic weight of Na = 23. The content of Na in the diluted sample was determined to be 0.3210 mg/100 ml. Determine the % of stated content of Na in the sample. The stated should be 104.5, how??
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How much drying agent, M|SO4, would be needed for drying of 20mL dichloromethane solution that contains 0.01% water, knowing that each mole of MgSO, can absorb 7 moles of H,0?