Please explain all steps ledgibly the highlighted part is the answer 15. Identify the missing species...
Please explain all steps ledgibly the highlighted part is the answer 11. A 500.0 mL buffer solution is 0.10 M in benzoic acid and 0.10 M in sodium benzoate (Ka 6.4 x 109) and has an initial pH of 4.19. What is the pH of the bu Fer upon addition of 0.010 mol of NaOH (assume no volume increase). (1) 1.70 (2) 4.01 (3) 4.28 4)7 (5) 4.51
show all steps please Identify the missing particle in the nuclear reaction below: 33% U + n > ___+437 Cs - 3;n
Please explain the answer too. 15. Identify the species oxidized, the species reduced, the oxidizing agent and the reducing agent in the following electron transfer reaction. As the reaction proceeds, electrons are transferred from to Oxidized: 4 CHEM 1411_sample problems Reduced: Oxidizing agent: Reducing agent:
19. An isotope with a high value of N/Z will end to decay through: a. alpha decay b. beta decay C. positron decay d. electron capture e. gamma decay 20.Identify the missing species in the following nuclear transmutation: 246Cm +12C 41n+? a. 254No b. 258No c. 238Cf d. 238Th e. none of the above 21. The isotope 42Sc is unstable because: a. the number of neutrons is too large in relation to the number of protons b. the number of...
Show all work and explain how you get the correct answer highlighted below: A rod of length L and square cross-section with side length a conducts heat between two machine parts. In order to modify the machine but maintain the same rate of heat conduction, you replace the rod with a new one of the same material that has a square cross-section with side length 3a/2. What is the new rod's length? A. 3L/2 B. 9L/4 C. 2L/3 D. 4L/9
In the compound K[Co(C_2O), (H_2O)_2] (where C_2O_4^2- = oxalate) the oxidation number and coordination number of cobalt are, respectively: A) -1 and 4. B) -1 and 6. C) 3 and 4. D) 3 and 6. E) 1 and 6. Which one of the following equations correctly represents alpha decay of ^222_16 Rn? A) 2 ^222_86 Rn rightarrow ^218_84 Po + ^4_2 He B) ^222_86 Rn rightarrow ^220_82 Pb + ^2_4 He C) ^222_86 Rn rightarrow ^222_87 Fr + ^8'_-1 D)...
Please explain all steps and formulas used. A detailed explanation please, thank you. Answer should be H = 102.323 az A/M For the filamentary loop shown in the following figure, find the magnetic field strength at O 10 A 4 cm 100 cm 10 A
CHM112 practice test 4 1) Based on the signs for change in enthalpy and entropy wither a process is always spontancous never ( this is an incomplete problem shoet but is should be of some help) spontancous or spontaneous only under certain condition of temperature. 2) Is radioactive decay natural or man-made ? 3) The sun is powered by a ion_nuclear reaction. (fission, fusion) 4) For each of the following radioactive nuclides determine the type of radioactive decay they will...
please explain the steps to get to the answer Find AH° for the reaction: 2 C,H,OH (1) + 0, (g) → 2 CH CHO (g) + 2 H,0 (9) GIVEN: C,H,OH (1) + 3 0, (g) → 2 CO, (g) + 3 H,0 (9) AH° = -1236 kJ 2 CHỊCHO (g) + 5 0, (g) + 4CO, (g) + 4 H,O (g) AH = -2207 kJ 2 CH OH (1) + 6 0, () — 4 CO, (g) + 6...
Please show all steps and work please. 2. Given the following chart, find: A B C D F Total Senior 15 19 7 14 3 58 Junior 8 25 16 17 10 76 Sophomore 18 5 3 14 13 53 Freshmen 4 11 21 23 4 63 Total 45 60 47 68 30 250 A) Find the probability that a student earned a “B” in the class. p(“B”) = B) Find the probability that a student earned a “C”...