Hello, I mainly need help with 11 through 15 but I would definitely not mind more help. Thank you in advance
CHM2046 Revicw Assignment Wed Feb 22, 2017 Due: Directions: Write the answers to each problem on the answer sheet prov ded. However, to receive credit must attached the work on separate paper. You may work together on these problems. Be sure to yo include proper u ts in your answer. How many protons, neutrons and electrons are present n each of the following Cr Provide the systematic names for the following: a. CaCO3 b, Cro c. N20 3. Provide the formula for the following: c. iron (II) oxide a. potassium sulfate b. sulfur hexafluoride The density of gold is about 19.32 g/cms. What is the density in units of lbs/ins? 1 kg 2.205 lbs. n 2.54 em. 5. Nicotine is a poisonous, addictive compound found in tobacco. Its form a is C10H14N a. Calculate the molar mass of nicotine b. How many nitrogen atoms are in 1.3 mg of nicotine 6. Ferrocene, first synthesized in 1951, was the first organic iron compound with direct Fe C bonds the combustion analysis of ferrocene, which contains only Fe, C, and H, a 0.9437 g sample produced 2.233 g of CO2 and 0.457 g of H2O. What is the empirical formula of ferrocene? 7, Balance the reactions listed on the answer sheet. Be sure to include "1" as coefficients so each specie has a coefficient 8. One of the first steps in the enrichment of uranium for use in nuclear power plants involves a displacement re between UO2 and aqueous HF to produce the green salt, UF4, and water. a. Write the balance reaction If the reaction in part b resulted in 3481 g of UF4, what is the percent yield of that reaction? 9. For the reaction of aqueous strontium chloride and lithium sulfate, a. write the balanced molecular equation, including correct states of matter b. complete ionic equation, including correct states of matter c. the net ionic, including correct states of matter 10. Automobile antifreeze mixture is made by mixing equal volumes of ethylene glycol (d 4 g/mL M-62.07 g/mol) and water (d 1.00 g/mL, M 8.02 g/mol). Ethylene glyco the solute and water is the solvent. Assume that the volumes are additive, calculate concentration in the following units a. molarity b. weight/vo me percent c. volume/volume percent Given the following data, calculate the lattice energy of K2O. Show work via Born-Haber cycle or Hess's law Enthalpy of formation of K2O 363.2 kJ/mol Enthalpy of sublimation for K 89.24 kJ/mol ionization energy for K 4.18.8 kJimol Bond dissociation energy of O2 498 kJ/mol electron affinity of O 142 kJ/mol 2'd electron affinity of O 744 J/mol
