Exam 1: Essentials: Units, Measurements, and Problem Solving

A student performs an experiment to determine the density of a sugar solution.She obtains the following results: 1.71 g/mL,1.73 g/mL,1.67 g/mL,1.69 g/mL.If the actual value for the density of the sugar solution is 1.40 g/mL,which statement below best describes her results?

How many miles are in 162 m?

Which of the following numbers has the greatest number of significant figures?

How many significant figures are in the measurement,0.0004932 g?

Convert 15 m³ to liters.

Read the length of the metal bar with the correct number of significant figures.

The factor 10⁶ corresponds to which prefix?

How many km are in 602 feet?

How many liters of air are in a room that measures 11.0 ft x 12.0 ft and has an 8.00 ft ceiling? 1 in.= 2.54 cm (exactly); 1 L= 10³ cm³.

Define the law of the conservation of energy.

How many cm³ are contained in 2.67 × 10⁴ mm³?

Read the water level with the correct number of significant figures.

A recipe requires 2.84 liters of milk for a soup base.How many quarts are needed?

The recommended adult dose of Elixophyllin ,a drug used to treat asthma,is 6.00 mg/kg of body mass.Calculate the dose in milligrams for a 112-lb person. 1 lb= 453.59g.

Since metals expand when heated,what happens to the density of a sample of iron metal as it is heated from room temperature to 100°C? (This is below the melting point of iron.)

Convert 250°F into Celsius

What answer should be reported,with the correct number of significant figures,for the following calculation? (965.43 × 3.911)+ 9413.4136

The factor 1,000,000 corresponds to which prefix?

Round the following number to four significant figures and express the result in standard exponential notation: 0.35462

If the walls in a room are 955 square feet in area,and a gallon of paint covers 15 square yards,how many gallons of paint are needed for the room? (3 ft = 1 yd)