Give the answer in scientific notation to the correct number of significant figures and with correct units. An acetaminophen suspension for infants containes 100. mg / 0.80 mL. The recommended dose is 15mg / kg body weight. How many ML of this suspension should be given to an infant weighing 11 lb?

Exactly 1 liter of a solution contains 31.4 grams of a certain dissolved substance. What mass in grams is in exactly 2 liters? How about 7.37 liters? Express the results in the proper number of significant figures.

Which weighs more, 4.25 g of gold or 425 mg of gold?

1.87 A solution of ethanol in water has a volume of 54.2 mL and a mass of 49.6 g. what information would you need to look up and how would you determine the percentage of ethanol in this solution?

Vinegar contains acetic acid (about 5% by mass). Pure acetic acid has a strong vinegar smell but is corrosive to the skin. What volume of pure acetic acid has a mass of 35.00 g? The density of acetic acid is 1.053 g/mL.

a. There are 365 days per year, 24 hours per day, 12 months per year, and 60 minutes per hour. Use these data (o deter- mine how many minutes are in a month. b. Now use the following data to calculate the number of minutes in a month: 24 hours per day, 60 minutes per hour, 7 days per week, and 4 weeks per month. c. Why are these answers different? Which (if any) is more correct? Why?

A submicroscopic particle suspended in a solution has a volume of 1.3 m3. What is this volume in liters?

What is the difference between reporting the quantity nine inches as 9 inches and 9.00 inches?

An Austrian boxer reads 69.1 kg when he steps on a balance scale in his gymnasium. Should he be classified as a welterweight 136 to 147 lb or a middleweight 148 to 160 lb?

A basketball game at the University of Connecticut's Gampel Pavilion attracted 10,000 people. The building's in-terior floor space has an area of 1.71105 ft2. Tickets to the game sold for $22.00. Senior citizens were given a 20% discount. How many significant figures are there in each quantity? (Your answer may include the words ambiguous and exact.)