Question

What mass in grams of dextrose and sodium chloride are required to prepare 250 mL of D10 NS electrolyte? Pick the best answer. 10. O 25 12.5 O 2.5 80

Answer 1

To prepare 250 mL of D10 NS electrolyte, you will need 25 grams of dextrose and approximately 2.92 grams of sodium chloride.

Step-by-step explanation:

To prepare 250 mL of D10 NS electrolyte, you need to calculate the masses of dextrose and sodium chloride required. D10 NS stands for 10% dextrose and normal saline.

To find the mass of dextrose, you need to calculate 10% of 250 mL, which is 25 mL. As the density of dextrose is approximately 1 g/mL, the mass of dextrose is 25 g.

For sodium chloride, you need to prepare a normal saline solution, which is 0.16 M. To calculate the mass of sodium chloride required, you need the formula weight of NaCl (sodium chloride) and the molarity of the solution. The formula weight of NaCl is approximately 58.44 g/mol. Multiply the molarity (0.16 M) by the volume in liters (0.25 L) and the formula weight (58.44 g/mol) to get the mass of sodium chloride required, which is approximately 2.92 g.