Questions from General Chemistry

Q: Perform each of the following conversions, being sure to set up

Perform each of the following conversions, being sure to set up clearly the appropriate conversion factor in each case. a. 8.43 cm to millimeters b. 2.41 * 102 cm to meters c. 294.5 nm to centimete...

Q: For the masses and volumes indicated, calculate the density in grams

For the masses and volumes indicated, calculate the density in grams per cubic centimeter. a. mass = 234 g; volume = 2.2 cm3 b. mass = 2.34 kg; volume = 2.2 m3 c. mass = 1.2 lb; volume = 2.1 ft3 d....

Q: The “Chemistry in Focus” segment Critical Units! discusses the

The “Chemistry in Focus” segment Critical Units! discusses the importance of unit conversions. Read the segment and make the proper unit conversions to answer the following questions. a. The Mars Cli...

Q: Read the “Chemistry in Focus” segment Measurement: Past,

Read the “Chemistry in Focus” segment Measurement: Past, Present, and Future and answer the following questions. a. Give three examples of how developing sophisticated measuring devices is useful in...

Q: Express each of the following numbers in standard scientific notation.

Express each of the following numbers in standard scientific notation. a. 0.5012 b. 5,012,000 c. 0.000005012 d. 5.012 e. 5012 f. 0.005012

Q: What similarities are there between the solid and liquid states of matter

What similarities are there between the solid and liquid states of matter? What differences are there between these two states?

Q: Sketch a flowchart of the steps in the scientific method. Then

Sketch a flowchart of the steps in the scientific method. Then define each part of the method.

Q: A represents a quantitative observation.

A represents a quantitative observation.

Q: By how many places must the decimal point be moved, and

By how many places must the decimal point be moved, and in which direction, to convert each of the following to standard scientific notation? a. 5993 b. -72.14 c. 0.00008291 d. 62.357 e. 0.01014...

Q: For the measurement 0.003040 meters, indicate which (if

For the measurement 0.003040 meters, indicate which (if any) zeros are significant and which (if any) are not significant. Account for all five zeros in the measurement, and explain your reasoning.