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11. Calculate the radioactivity in Bg of a 10.0-mg sample of Co-60 which has a valt-Wife...
Calculate the hardness of a water sample containing Ca 2+ 60 mg/L, Mg 2+ 30 mg/L and HCO3- 366 mg/L and 17 mg/L of CO3= at a pH of 9.8.. Calculate the total hardness in terms of calcium carbonate.
mail/u/U/INDUA! Projelui- 11. Order: simvastatin 30 mg Available: - Zocor® 20 mg (Simvastatin) MEROXA CO, INC. 2 Wer Point, PA 1MM, USA em 5-3)*00116 0006-0740-61 8 60 Tablets Z Exp Zocor 40 mg Table a. Which bottle will you choose? ANS: b. How many tablets will you give? ANS: 12. Order: enoxaparin 1 mg/kg SC 912h Available:
. A water sample has the following constituents Ca, mg/L 12 Mg-2, mg/L39 Na mg/L 12.8 K-, mg/L 3.4 Fe-, mg/L6.2 Mn-, mg/L 0.3 HCO mg/L 422 SO mg/L 101 CI mg/L 32 co,2mg/L 1.2 Temperature 25 C a. Calculate pH of that water b. Calculate the alkalinity (exactly, including effects of protons and hydroxyl ions); express alkalinity as mg/L CaCO e. Draw a bar chart for the water, Express all concentrations as mg/L CaCO, (The easiest way to do...
Cobalt-60 is radioactive and has a half life of 5.26 years. Calculate the activity of a 4.5 mg sample of cobalt-60. Give your answer in becquerels and in curies. Round your answer to 2 significant digits. Bq ? Ci
Exercise 2.1. Calculate the number of curies in one gram of Co-60 if Co-60 has a half life of 5.27 years. Exercise 2.2. Calculate the Iodine-135 to Xenon-135 ratio (NI/NXe) at which the decay rates of the two nuclides are equal. The half life of I-135 is 6.6 hours and the half life of Xe-135 is 9.1 hours. Exercise 2.3. Compare the spontaneous fission (SF) rate of Pu-240 to the SF rate of U-238 if N240 = 2 x 1019...
13: Question 11. - 10.0 pts possible Which of the following capacitors, each of which has plates of area A, would store the most charge on the top plate for a given po- tential difference V? V d/2 1. Air V 2. d/2 T Glass V d/2 3. Vacuum V d Glass - 5. Vacuum
At 373 K, the following reaction has an equilibrium constant, K = 1.2 x10-2 COCl2 (s) ↔ CO (g) + Cl2 (g) If 1.00 mol of phosgene, COCl2 , is placed in a 10.0 L flask, calculate the concentration of carbon monoxide, CO, at equilibrium.
Thank you so much for your help! Tin-129 is radioactive and has a half life of 2.23 minutes. Calculate the activity of a 6.9 mg sample of tin-129. Give your answer in becquerels and in curies. Be sure your answer has the correct number of significant digits Bq Ci Tin-129 is radioactive and has a half life of 2.23 minutes. Calculate the activity of a 6.9 mg sample of tin-129. Give your answer in becquerels and in curies. Be sure...
What is the activity of the sample in Bq? Cobalt-60, which undergoes beta decay, has a half- life of 5.26 yr. N = 3.14x1013 B-particles SU Previous Answers All attempts used; correct answer displayed Part B What is the activity of the sample in Bq? t V AC o XD x x x XI .X.10 > . Submit Previous Answers Request Answer X Incorrect; Try Again; 4 attempts remaining
18. Calculate the percent ionic character of the bond in CO which has a dipole moment( u ) = 0.11 D and distance between partial charges (r) = 113 picometer. (1D = 3.336x10-30 C•m ; le = 1.6022x10-19 C) A) 2.0% B) 0.20% C) 20.% D) 1.8% E) 18%