I am working on a practice sheet. This is not a grade. How would I solve these practice problems? 8. A student runs 2.5 m/sec. How many km does the student run in 20 min?9. A student takes 2 tablets of vitamin C in one day. Each tablet contains 60. mg of vitamin C.How many grams of vitamin C does the student get in 1 week?

Since you have posted multiple questions, we are entitled to answer the first only.

Answered: ade. How would I

Chemistry

9th Edition

ISBN:9781133611097

Author:Steven S. Zumdahl

Publisher:Steven S. Zumdahl

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 48E: A children's pain relief elixir contains 80. mg acetaminophen per 0.50 teaspoon. The dosage...

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When chlorine gas is bubbled into a solution of sodium bromide, the sodium bromide reacts to give bromine, a red-brown liquid, and sodium chloride (ordinary table salt). A solution was made by dissolving 20.6 g of sodium bromide in 100.0 g of water. After passing chlorine through the solution, investigators analyzed the mixture. It contained 16.0 g of bromine and 11.7 g of sodium chloride. How many grams of chlorine reacted?
A 500-mL bottle of Evian bottled water contains 12 mg magnesium. The recommended daily allowance of magnesium for adult women is 320 mg/day. Calculate how many 1-L bottles of Evian a woman would have to drink to obtain her total daily allowance of magnesium solely in this way.
A flask contains a 30.0 mL sample of acetone (nail polish remover) that weighs 23.6 grams. What is the density of the acetone?
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.
When a mixture of aluminum powder and iron(III) oxide is ignited, it produces molten iron and aluminum oxide. In an experiment, 5.40 g of aluminum was mixed with 18.50 g of iron(III) oxide. At the end of the reaction, the mixture contained 11.17 g of iron, 10.20 g of aluminum oxide, and an undetermined amount of unreacted iron(III) oxide. No aluminum was left. What is the mass of the iron(III) oxide?
A driver drives an average speed of 58 miles per hour. How long will it take the driver to reach a destination that is 155 km away?
A lap in most tracks in the United States is 0.25 mi (English lap). In most countries that use the metric system, a metric lap is 0.40 km. A champion marathon runner covers a mile in about 5.0 min. How many minutes will the runner take to run an English lap? A metric lap?
A thief plans to steal a bar of gold from a womans purse and replace it with a bag of sand. Assume that the volumes of the gold and the sand are 350 mL each and that the density of sand is 3.00g/cm3. a. Calculate the mass of each object. b. Would the woman notice a difference in the weight of her purse?
Convert the following Celsius temperatures to Fahrenheit degrees. the boiling temperature of ethyl alcohol. 78.1 °C a hot day at the beach on a Greek isle. 40. °C the lowest possible temperature, 273 °C the body temperature of a person with hypothermia, 32 °C
8. A 12-oz can of soda costs 50-cents. A 2.0-L of the same soda is on sale for $1.29. How many times more expensive is it to buy the 12-oz can in comparison to the 2.0-L bottle if buying equivalent volumes of soda? (1.00 L = 1.057 qt., 1 qt. = 32 oz.) a. 4.2 b. 2.8 c. 1.9 d. 2.2
Calculate the dosage in milligrams per kilogram body weight for a 170 lblb adult who takes two aspirin tablets containing 0.324 gg of aspirin each. Calculate the dosage for a 55 lblb child who also takes two aspirin tablets.
A prescription for amoxicillin comes in an oral suspension that is 25.0 mg per 1 mL. A patient is prescribed 500. mg every 6 hours. How many milliliters of amoxicillin should the patient take per dose? How many teaspoons per dose? and how many teaspoons per day?

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