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doctor has ordered that a patient be given 20 g of glucose, which is available in a concentration of 70.00 g glucose/1000.0 mL of solution.What volume of solution should be given to the patient?

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Alkis
The patient should be given 285.71 ml. 
1000 ml contains 70 gr glucose.
    x        contains 20 gr glucose.

x=1000*20/70

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