Final answer:
The question pertains to administering intravenous fluids, specifically a 500 ml bolus of D5W, which is a medical solution containing 5% glucose in water. The calculation involves using molarity and volume to determine the mass of glucose needed for the preparation.
Step-by-step explanation:
In medicine, when there is a risk of significant fluid loss, or a patient is dehydrated, healthcare providers administer fluids intravenously to maintain or restore hydration levels. A commonly used solution for this purpose is the D5W solution, which is a mixture of 5% dextrose (glucose) in water. For example, to prepare a 500ml bolus of D5W, a molarity of 0.310 M is used, which means we need to find the mass of glucose that corresponds to this concentration in a 500 mL pouch.
To calculate the mass of glucose required, we must first determine the number of moles of glucose in the solution by multiplying the volume (0.500 L) by the molarity (0.310 mol/L). The mass of glucose can then be found by multiplying the number of moles by the molar mass of glucose, which is 180.16 g/mol.