University:
Amherst College
Course:
CHEM 221 | Organic Chemistry I
Academic year:

2022
Views:

494

Pages:

2
Author:

do3ran7ut

Multi-Step Conversions Perform the following conversions using the metric system conversion factors: 1) 44.2 mL into cL 2) 7.65 micrometers into nanometers 3) 5.2 x 108 Kg into Gg 4) 0.0000332 deciliters into milliliters 5) 0.962 Megameters into Kilometers 6) 4.7 x 10-5 hectograms into centigrams 7) 0.0252 Decaliters to centiliters 8) A patient needs 0.024 g of a sulfa drug. There are 8-mg tablets in stock. How many tablets should be given? 9) An intramuscular medication is given at 3.25 mg/kg of body weight. What is the dose for a 145-lb patient? 10) A physician orders a medication to be given at 1.2 mg/kg of body weight. If a patient weighs 115 lb and the available stock of this medication is 25 mg/mL, how many milliliters should be administered to the patient? 11) A medical professional prepares 425 mL of an IV of normal saline solution to be delivered at a rate of 80. mL/h. What is the infusion time, in hours, to deliver 425 mL? Answers 1𝐿 1000 𝑚𝐿 1) 44. 2 𝑚𝐿 𝑥 100 𝑐𝐿 1𝐿 𝑥 1 𝑚𝑒𝑡𝑒𝑟 1,000,000 𝑚𝑖𝑐𝑟𝑜𝑚𝑒𝑡𝑒𝑟𝑠 2)7. 65 𝑚𝑖𝑐𝑟𝑜𝑚𝑒𝑡𝑒𝑟𝑠 𝑥 8 3) 5. 2 𝑥 10 𝐾𝑔 𝑥 1000 𝑔𝑟𝑎𝑚𝑠 1 𝐾𝑔 1𝐿 10 𝑑𝐿 4) 0. 0000332 𝑑𝐿 𝑥 5) 0. 962 𝑀𝑚 𝑥 −5 𝑥 1 𝐾𝑚 1,000 𝑚 𝑥 100 𝑔 1 𝐻𝑔 𝑥 100 𝑐𝑔 1𝑔 𝑥 100 𝑐𝐿 1𝐿 1000 𝑚𝑔 1𝑔 𝑥 1 𝑡𝑎𝑏𝑙𝑒𝑡 8 𝑚𝑔 1,000,000,000 𝑛𝑎𝑛𝑜𝑚𝑒𝑡𝑒𝑟𝑠 1 𝑚𝑒𝑡𝑒𝑟 𝑥 1 𝐺𝑖𝑔𝑎𝑔𝑟𝑎𝑚𝑠 1,000,000,000 𝑔𝑟𝑎𝑚𝑠 1000 𝑚𝐿 1𝐿 10 𝐿 1 𝐷𝑙 7) 0. 0252 𝐷𝐿 𝑥 8) 0. 024 𝑔 𝑥 𝑥 1,000,000 𝑚 1 𝑀𝑚 6) 4. 7 𝑥 10 𝐻𝑔 𝑥 = 4.42 cL [3 SF] = 7650 nanometers [3 SF} = 520 𝐺𝑖𝑔𝑎𝑔𝑟𝑎𝑚𝑠 [2 𝑆𝐹] = 0. 00332 𝑚𝐿 𝑜𝑟 3. 32 𝑥 10 −3 𝑚𝐿 [3 𝑆𝐹] = 962 Km [3 SF] = 0. 47 𝑐𝑔 [2 𝑆𝐹] = 25. 2 𝑐𝐿 [3 𝑆𝐹] = 3 𝑡𝑎𝑏𝑙𝑒𝑡𝑠 9) 145 𝑙𝑏 𝑏𝑜𝑑𝑦 𝑤𝑒𝑖𝑔ℎ𝑡 𝑥 1 𝐾𝑔 𝑏𝑜𝑑𝑦 𝑤𝑒𝑖𝑔ℎ𝑡 2.20 𝑙𝑏 𝑏𝑜𝑑𝑦 𝑤𝑒𝑖𝑔ℎ𝑡 𝑥 3.25 𝑚𝑔 𝑚𝑒𝑑𝑖𝑐𝑎𝑡𝑖𝑜𝑛 1 𝑘𝑔 𝑏𝑜𝑑𝑦 𝑤𝑒𝑖𝑔ℎ𝑡 = 214 𝑚𝑔 𝑚𝑒𝑑𝑖𝑐𝑎𝑡𝑖𝑜𝑛 10) 115 𝑙𝑏 𝑏𝑜𝑑𝑦 𝑤𝑒𝑖𝑔ℎ𝑡 𝑥 1 𝐾𝑔 𝑏𝑜𝑑𝑦 𝑤𝑒𝑖𝑔ℎ𝑡 2.20 𝑙𝑏 𝑏𝑜𝑑𝑦 𝑤𝑒𝑖𝑔ℎ𝑡 𝑥 1.2 𝑚𝑔 𝑚𝑒𝑑𝑖𝑐𝑎𝑡𝑖𝑜𝑛 1 𝐾𝑔 𝑏𝑜𝑑𝑦 𝑤𝑒𝑖𝑔ℎ𝑡 1 𝑚𝐿 𝑚𝑒𝑑𝑖𝑐𝑎𝑡𝑖𝑜𝑛 25 𝑚𝑔 𝑚𝑒𝑑𝑖𝑐𝑎𝑡𝑖𝑜𝑛 11) 425 𝑚𝐿 𝑥 1 ℎ𝑜𝑢𝑟 80. 𝑚𝐿 = 5. 3 ℎ𝑜𝑢𝑟𝑠 [2 𝑆𝐹] 𝑥 = 2. 5 𝑚𝐿 [2 𝑆𝐹]

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