Blog

In order to receive credit for this problem you must   solv…

In order to receive credit for this problem you must   solve it using dimensional analysis  show all your work and   your work must be legible, well organized and easy to follow. to the correct number of significant figures Once Finished Show the work to the camera. Submit this Exam. Then go to the Free Response on Canvas take a picture and upload the answer.   Vanillin (used to flavor vanilla ice cream and other food) is the substance whose aroma the human nose detects in the smallest amount. The threshold limit is 5.00 x 10-11 grams per liter of air. If the current price of 50 grams of vanillin is $124, determine the cost to supply enough vanillin so that the aroma could be detected in a large aircraft hangar with a volume of 6.75 x109 ft3. (1 cm3=1 mL)     

There are three natural isotopes for element L (L- 124, L-12…

There are three natural isotopes for element L (L- 124, L-126, and L-127). Below are the atomic masses and percent abundances of element L. Determine the average atomic mass of the element.   L-124  123.9992 amu  22.101%  L-126  125.9909 amu  10.710%  L-127  126.9871 amu  67.189% 

Determine if the following statements about the relationship…

Determine if the following statements about the relationship between energy, wavelength, and frequency of light are True or False.  As the wavelength of light increases, the energy of the light decreases. [1] As the frequency of light decreases, the energy of light increases. [2] A light with a frequency of 5.45 x 1014 Hz has a longer wavelength than a light with a frequency of 8.20 x 1014 Hz. [3]