Copper Mountain College Ch 2 Measurement & Quotient Evaluation Questions

1)Evaluate the quotient.

4.05×1026.27×10−7=

2)Evaluate the quotient.

3.80×10−46.40×103=

3)Convert 1.11×10−3 m

$1.11\times {10}^{-3}\text{m}$

to the equivalent length in nanometers.

4)Convert the volume to its equivalent in milliliters.

88.0 UL=

5)Steve races to the nearest taco stand at lunchtime and sees that his pedometer recorded his peak speed at 109.5

$109.5$

cm/s. What was Steve’s peak speed in kilometers per hour?

6)Ethanol is a common laboratory solvent and has a density of 0.789

$0.789$

g/mL. What is the mass, in grams, of 139

$139$

mL of ethanol?

7)An empty beaker weighs 45.81 g.

$45.81\text{g.}$

When completely filled with water, the beaker and its contents have a total mass of 269.15 g.

$269.15\text{g.}$

What volume does the beaker hold? Use =1.00 g/mL

$d=1.00\text{g/mL}$

as the density of water.

How much would the beaker and its contents weigh if it was completely filled with mercury? The density of mercury is =13.5 g/mL.