Question 7.sp.7: What is the molarity of an intravenous glucose solution prep...

[1] Identify the known quantities and the desired quantity.

108 g glucose
2.0 L solution                            ? M (mol/L)
known quantities                        desired quantity

[2] Convert the number of grams of glucose to the number of moles using the molar mass (180.2 g/mol).

• Since the volume of the solution is given in liters, no conversion is necessary for volume.

[3] Divide the number of moles of solute by the number of liters of solution to obtain the molarity.

M =\frac {moles  of  solute (mol)}{V (L)}=\frac {0.599 mol   glucose}{2.0  L  solution}= 0.30 M