Question

1.2 biomL 4. A 50.0 g silver object is added to 72.8 mL of water contained in a gradu What would be the ne dded to 72.8 mL of water contained in a graduated cylinder. d be the new water level, in milliliters (density of silver = 10.5 g/mL; 8 points)? ml - 72.8 mL 50. Og silver d = 10.5g/mL 5. A physician has ordered 1.0 g of tetracycline to be given every six hours to a patient. If your stock on hand is 500-mg tablets, how many tablets will you need for one day's (i.e. 24 hours) treatment (8 points)? 1.09 Tohrs Tg-100a ng IDoma 1000ma Lehrs A nurse practition

Answer 1

Ahs) given: Mass of silver = 50.00 Density g silues = 10:59|ML we know that: Density of Silue= Massoj silee volume of silver That is, 10.5 g/mL = 50.0g - volume of spluer Volume og splies= 50.08 1015ølme = 4.76190476m2 we know that: volume of water displaced = volume of silver. New volume = volume of water in cylindest volume of water de placed (given: Volume of water in cylinder • 72.8ML) = 72.8mL + 4.7619 6476mL 77.5619048ml 77.6mL

5. Ahs) Mass of tetracycline that is given every 6 hes = log Mass og tablets = 500mg = 500 x1o3g = 0.59 No g days in this = 6hrs x 1 day 24hs = 0.25 days No. of doses in Iday = Idoly x I dose 0.25dly = 4 doses = 45 Ci dose=1:0g) No g tablets = 49x1 tablet 0.5g = 8 = 8.00 tablete