B. Calculations for Phosphate Buffer Preparation Given: pl = 7.40 Volume = 250 ml. or 0.250 L mof KH2PO4 (HA] = 2.13 g m of K2HPO4 (A -| = 4.24 g Find: Molar Mass of KH2P04 and K2HPO4 Molarity of (HA] and JA1 Total Molarity of Buffer Ka
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![B. Calculations for Phosphate Buffer Preparation
Given:
pl = 7.40
Volume = 250 ml. or 0.250 L
mof KH2PO4 (HA] = 2.13 g
m of K2HPO4 (A -| = 4.24 g
Find:
Molar Mass of KH2P04 and K2HPO4
Molarity of (HA] and JA1
Total Molarity of Buffer
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- Ibuprofen for infusion comes in vials containing 400 mg of ibuprofen in 4 mL. Scotty requires 410 mg of ibuprofen to be infused every 6 hours. The solution for infusion has a concentration of 2.5 mg per mL. Calculate the volume of 5% glucose solution required to dilute the concentrated solution. Answer: 0.44 mL X *********Directions: Complete the table below for aqueous solution of C6 H1206 (glucose) Mass Solute Moles Solute Volume of Molarity Solution А. 12.5 1.62 L 1.08 В. 12.5 219 mL. С. 1.08 0.519Calculate for the initial pH, final pH, and buffer capacity if 0.1 mole of H+ is added to 1L of buffer solution that is made up of 650 mL of 1 M A- and 350 mL of 1M HA (pka=4.74)