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. A European automobile has a gas mileage of 14 km / L. What is this...

. A European automobile has a gas mileage of 14 km / L. What is this gas mileage in miles per gallon?

. An acetaminophen suspension for infants contains 80. mg / 0.80 mL. The recommended dose is 15 mg / kg body weight. How many mL of this suspension should be given to an infant weighing 14 lb?

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Answer #1

1 km = 0.621371 mile

to change from km to mile of the given value,

14 km/L = 14 x 0.621371 miles/L

1 L = 0.264172 gallon

14 x 0.621371 miles/L = (14 x 0.621371/0.264172) miles/gallon

hence, 14 km/L = 32 miles/gallon

14 kg infant can have 14 kg x 15 mg/kg of the acetaminophen dose

= 210mg of dose

80mg is present in 0.80mL of solution.

1 mg is present in 0.80 mL/ 80mg = 0.01mL/mg

hence, 210mg is present in 0.01mL/mg x 210mg of solution,

that is 2.1mL of solution should be given to an infant.

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