Biomaterials and Tissue Engineering · Biomaterial Properties · 2 marks · Multiple choice
Gelatin solutions P,Q have concentrations 3.5%,0.5% w/v. How many mL of P must be mixed with 100 mL of Q to obtain a 3% solution, assuming additive volumes?
If v mL of P is used, gelatin mass balance gives 0.035v+0.005×100=0.03(v+100). Thus 0.005v=2.5, giving v=500 mL, C. The concentration bases are all w/v, so the same mass-per-volume calculation applies.
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