Are C atoms paramagnetic or diamagnetic? Briefly explain.

Page 3
13. (4 pts) The density of liquid acetone, (CH3)2CO (FM =58.08), is 0.790 g/mL at 68 degrees F. What
is this same temperature in K, and how many acetone molecules will occupy a cubic container, 1 mm on
each side?
14. (3 pts) Copper has two naturally occurring forms, 63Cu and 65Cu. The average atomic mass of Cu is
63.546 amu. If the mass of 63Cu is 62.930 amu, and the mass of 65Cu is 64.928 amu, what is the percent
abundance of 65Cu?
% abundance of 65Cu = ___________________
16. (5 pts) Write the balanced net ionic equation using chemical formulas for the reaction between
aqueous solutions of lithium sulfate and lead (II) nitrate. Use the smallest whole number coefficients, and
identify the spectator ions.
Page 4
17. (3 pts) What is the mass percent of carbon in carbon tetrachloride (FM = 153.82)?
18. (6 pts) A certain compound contains only C and H and has a molar mass of about 86 g/mol. A
sample of the compound burns in a combustion apparatus yielding 26.4 g CO2 and 12.6 g H2O. What is
its molecular formula?
19. (5 pts) A sample of a compound containing carbon and hydrogen contains 22.2 g carbon and 3.7 g
hydrogen. How many grams of carbon are in a 50 g sample of this compound?
Page 5
21. (6 pts) What is the theoretical yield of CaSO4 (in g) if 3.00 g CaF2 (FM = 78.08) react with 3.60 g
H2SO4 (FM = 98.09)? What is the percent yield if 1.97 g of CaSO4 (FM = 136.14) are actually obtained?
22. (a) (2 pts) What volume (in mL) of 1.67 M LiOH (FM = 23.95) is required to make 100.0 mL of
0.500 M LiOH?
23. If 15.0 mL of aqueous acetic acid solution is neutralized by (i.e., completely reacted with) 13.3 mL of
0.049 M barium hydroxide, what is the molar concentration of acetic acid in solution?
Page 6
Convert 430 nm to frequency (Hz).
25. (4 pts) Calculate the wavelength of a photon emitted when hydrogen atoms relax from the n = 5
state to n = 2.
(0, 1, -1, 1/2)
(2, 2, -1, -1/2)
27. The ionization energy of P is larger than that of Ga. Explain why. (Merely pointing out their location
on the periodic table will not suffice – you should discuss effective charge in your answer.
28. (3 pts) Sketch the energy level diagram of the C atom in its ground state. Are C atoms paramagnetic
or diamagnetic? Briefly explain.

Explain in detail, in a step-by-step guide, how to make people more aware of the problems associated with the use of IoT devices. 

 Attached Files:  Personal data breaches and securing IoT devices.docx Personal data breaches and securing IoT devices.docx – Alternative Formats (55.866 KB)  What are the Challenges of IoT Security.docx What are the Challenges of….

Write a synopsis of a couple paragraphs about the fire including the type of occupancy

Select a fire of significance (one that was in the news, known in history, or one that you are personally familiar with.) Write a synopsis of a couple paragraphs about….

determine the infinite dilution partition coefficient for the drug between water and n-octanol: 

A useful method for assessing the extent of the partitioning of a drug between the bloodstream and body fat is to determine the infinite dilution partition coefficient for the drug….