1. A chemist has a block of lead metal (density is 11.3 g/mL). They drop the metal into a graduated cylinder containing water, and find the volume change is 2.70 mL. What is the mass of the block, in grams?

1)A piece of sodium metal is submerged in mineral oil for storage. The sodium displaces 10.7 cubic centimeters of mineral oil. If the density of sodium metal is 0.972 g/cm³ what is the mass in grams of the submerged piece? 2)The distance from the Earth to the moon is 239,000 miles. The distance from the Earth to the moon is 385000 km. Given that light travels at 3.00 × 10⁸ m/s how many minutes does it take for light to travel to the moon? 3) Polyethylene terephthalate (PET) is used in plastic water bottles. A water bottle has a mass of 14.0 grams Given a density of 1.38 g/cm³ what is the volume of the plastic used to make the water bottle in cm³ ?

A sphere has a diameter of 1.56 inches. If the sphere weighs 23.6 oz what is the density of the sphere in terms of g/cc?

from the chart to see what the normal person can see from 100 feet away. In Britain, eye doctors use 37) In the United States, vision is tested by having the person attempt to read letters at a certain distance person's vision who scored 20/100 vision on the United States scale(1 inch32.54 cm)? a sìmilar test, however, the distance is measured in meters. For example, poor vision is 20/100, meaning that this person must be 20 feet away measured in feet. person's vision who scored 20/100 vision on the Und tates scale(1 inch32.54 cm)? How would a British doctor record a a) 5.3/28 b) 6.1/31 c) 7.4/38 ) 8.5/42

A chemist has a block of gold metal (density is 19.3 g/mL). The block weighs 3.10 g. What is the volume of the gold block in mL?

S S In France the price of gasoline averages around $ 1.04 per liter. Using unit analysis, calculate the cost of gasoline in France in dollars per gallon. Use one of the following to set up the conversion factor. 454 g = 1 lb = 16 oz 1 m = 39.4 in = 3.28 feet Visited $ 1.04 1 L 2.54 cm = 1 in 1 km = 0.621 miles 1 L=1.06 qt 3.79 L 1 gal (number) (number) Submit Answer (unit) (unit) Try Another Version 11 $ /gallon 1 item attempt remaining

Alex has been taking Excedrin for her headaches. The adult dosage is 250 milligrams per tablet to take 2 tablets every 6 hours, not to exceed 8 tablets in a 24-hour period. What is the maximum daily adult dosage of Excedrin in grams?

A dosage descibes the amount of medication administered over a specified period of time with a certain frequency of dosing. A dose descibes the amount of medication administered at one time. Most drugs are prescribed to pediatric patients at a dosage based on the patient's weight. For pediatric patients, the dosage of the antibiotic cephalexin is 24.5 mg/kg/day administered in 4 doses throughout the day. How many milligrams of cephalexin would a 61.0 lb child receive at each dose? (2.2 lb = 1 kg) A total of 679 mg cephalexin should be administered to the 61.0 lb patient each day. Calculate the amount of cephalexin in milligrams that should be administered at each of the four doses throughout the day. amount of cephalexin per dose: mg/dose

7. Light travels at a speed of 3.00 x 10¹0 cm/sec. What is the speed of light in km/hr?