Give the answer in scientifi notation to the correct number of significant figures and with correct units. A European automobile has a gas milage of 14km/L. What is this gas milage in miles per gallon (ml/gal)?

A listing of a house for sale states that there are 5bedrooms, 4000 ft2 of living area, and a living room with dimensions 1718.5 ft. How many significant figures are there in each quantity? (Your answer may include the words ambiguous and exact.)

The radius of an atom is on the order of1010 m. What is this radius in centimeters? In inches? In nanometers?

The beakers shown below have different precisions. a. Label the amount of water in each of the three beakers to the correct number of significant figures. b. Is it possible for each of the three beakers to contain the exact same amount of water? If no, why not? If yes, did you report the volumes as the same in part a? Explain. c. Suppose you pour the water from these three beakers into one container. What should be the volume in the container reported to the correct number of significant figures?

The beakers shown below have different precision as shown. Suppose you combine the water from these three beakers into one container. What would be the volume in the container reported to the correct number of significant figures? -69 -68 -67 O 0.20 1 202 mL 201.8 mL O 201.82 mL -80 -70 -60 -67.6 -67.5 67.47

Express each answer with the correct significant digits, and the proper units AND write it in scientific notation number, units. Note: Input derived units as unit power, for example mm^2 represents mm? (2.456 x 10° Ibs - 8.34 x 10 Ibs)/1.22 x 10 in? x 10

Ethylene glycol (antifreeze) has a density of 1.11g/cm^3 What is the mass in g of 424 mL of ethylene glycol? Express your answer using three significant figures. What is the volume in L of 4.4 kg of ethylene glycol? Express your answer using two significant figures.

1.  A 22.65-g sample of a solid is placed in a flask. Ethanol is added to the same flask having the total volume together of 45.00 mL. The solid and ethanol together weigh 38.58 g. At room temperature, the density of ethanol is 0.789 g/mL. What is the density of the solid?  Report your answer in correct significant figures with proper units.

A particular brand of gasoline has a density of 0.737 g/mL at 25 ∘C. How many grams of this gasoline would fill a 15.3 gal tank (1US gal=3.78L)? Express your answer to three significant figures and include the appropriate units. 1) I converted 15.3 gal to L 15.3 gal (3.78 L/ 1 gal) = 57.834 L 2) I converted 57.834 L to mL 57.834 L (10^3 mL/1 L) = 57834 mL 3) I multiplied the density times the volume to get the mass 0.737 g/mL x 57834 mL = 42623.658 grams 4) Lastly I rounded my final answer to 3 sig figs ANSWER: Mass = 426 grams   Pearson says I'm wrong. What did I do I wrong? Please, help. Thanks! "Incorrect; Try Again; 5 attempts remaining Check your conversion from liters to milliliters. You may need to review Conversion Between L and mL."

A student is determining the density of unknown metal with a mass of 627.0 g. The student partially fills a graduated cylinder with water and measures the volume of the water by itself as 54.8 mL. The student then adds the metal to the water and measures the new volume as 87.3 mL. What is the density, in g/mL, of the metal?