How many minutes should a constant current of 100.0 mA be passed through a solution to prepare 100 mL of a solution of 0.0100 M Ni2* using an anode of pure nickel?O 16.1O 1.61О 3.22O 32.2O 26.4O O O O O

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Answered: O 16.1 O 1.61 O 3.22 O 32.2 O 26.4

Science

Chemistry

O 16.1 O 1.61 O 3.22 O 32.2 O 26.4

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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0.10 M formic acid (HCHO₂) Ka = 1.8 x 104 0.10 M sodium formate (NaCHO₂) 0.10 M acetic acid (HC2H302) Ka = 1.8 x 10¹5 0.10 M sodium acetate (Na C₂H30₂) 0.10 M carbonic acid (H₂CO3) Ka = 4.3 x 107 0.10 M sodium bicarbonate (NaHCO3) 0.10 M KOH 0.10 M HCI 0.10 M boric acid (H3BO3) Ka = 5.8 x 10-10 0.10 M sodium borate (NaH₂BO3) 4. Which reagents listed above should be mixed to result in a buffer of about pH 6-8?
p) 1. BH, THF 2. HO, H₂O₂ 3. PCC
H He 1.008 3 4.003 36 7 S 9 10 4 C Li Be 6.941 9.012 B F Ne 10.81 12.01 14.01 16.00 19.00 20.18 13 14 Al Si 26.98 28.09 30.97 32.07 35.45 39 95 15 16 17 S 11 12 18 Na Mg 22.99 24.31 Ar 26 27 28 Co 39.10 40.08 44.96 47.88 50.94 52.00 54.94 55.85 58.93 58.69 63.5s|65.38 69.72 72.59 74.92 78.96 79.90 83.80 22 23 24 25 Cr 19 20 21 29 30 31 32 33 34 35 36 K Ca Sc Ti Mn Fe Ni Cu Zn Ga Ge As Se Br Kr 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 |Y Zr Te ca In Sn Sb Te I Rb Sr Nb Мо Ru Rh Pd Ag Cd Xe 85.47 87.62 88.91 91.22 92.9195.94 (98) 101.1 102.9 106.4 107.9 112.4 114.8 118.7 121.8127.6 126.9 1313 55 56 57 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 Cs Ba Ва La Hf Ta Re Os Ir Pt Au Hg TI Pb Bi Po At Rn 132.9 137.3 138 9178.5 180.9 183.9 186.2 190.2 192.2 195.1 197.0 200.6 204.4 207.2 209.0 (209) (210) (222) 87 89 Fr Ra Ac (223) 226 (227) Calculate the pH of a 50.00 mL of 0.2000 M ammonia (Ka = 5.7 x 10-10) solution after addition of 50.00 mL of 0.2000 M HCl in the titration. 1.…
How many sig figs in this number? 4.50 x 105 O 1 O 2 03 O 4 O 5
Amalgam is an alloy of Mercury (Hg), Silver(Ag), tin (Sn) and Zinc (Zn) used in dentistry to fill cavities caused by tooth decay. The amalgam alloy contains 40.0 g of Hg, 11.2 g of Sn, 22.4 g of Ag and 6.4 g of Zn. What is the percentage of each element in the alloy?
Br Br 2. 1. Mg. Et₂0 3. H3O+ 1. Mg Et₂O 1. Mg Et₂0 2. 3. H3O+ Дон 2. H 3. H3O+ CH3 /Et₂0 0/E1₂0 Et₂0
H 1.008 3 Li 6.94 11 4 Be 9.012 12 Na Mg 22.990 24.305 19 Select one: 5 O a. i and ii O b. i and iii O c. ii only O d. i, ii, and iii 14 16 17 Al Si PS CI Ar 26.982 28.085 30.974 32.06 35.45 31 32 33 34 35 39.948 36 20 21 22 23 24 25 26 27 28 29 30 K Ca Sc Ti V Cr Mn Fe Co Ni Cu Zn Ga Ge As Se Br Kr 39.098 40.078 44.956 47.867 37 38 39 50.942 41 51.996 42 54.938 43 55.845 44 58.933 45 58.693 63.546 65.38 69.723 72.630 74.922 78.971 79.904 83.798 46 47 48 49 50 51 52 53 54 40 Rb Sr Y Zr Nb Mo Tc 85.468 87.62 88.906 91.224 92.906 95.95 [97] 101.07 102.91 106.42 107.87 112.41 114.82 118.71 121.76 127.60 126.90 131.29 Ru Rh Pd Ag Cd In Sn Sb Te I Xe Which of the following will have an odd number of electrons in their 3d orbital? i. Cr²+ ii. Mn²+ iii. Fe²+ 10.81 6 BC с 13 8 9 10 NO F Ne 12.011 14.007 15.999 18.998 20.180 15 He 4.003 7 18 18 e
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Una masa de mercurio ocupa 0.750 L Qué volumen ocuparla una masa igual de etanol? La densidad del mercurio es de 13.546 g/ml y la densidad del etanol es de 0.789 g/ml. a. 0.0437 L b.0.0777L Oa. 12.9L Od. 22.9L QUESTION 5 Cuando dos materiales tienen diferentes densidad como el agua y el aceite, se encuentran intercambian densidades b. se mezclaran uniformemente se repelan uno al otro se separan de acuerdo a sus densidades Chick Save and Suhmit to save and submit. Click Save All Aners to save all unmoers Save All Answers
The reaction between substance A (large, red spheres) and substance B (small, blue spheres) is shown in the diagram. Select the equation that best describes the reaction. A. 4A+4B⟶AB B. 4A+4B⟶4AB C. A+B⟶AB D. A+B⟶4AB
3 9 10 11 12 13 14 15 16 17 18 1A 2A 3A 4A 5A 6A 7A SA He 4.003 1.008 4. 6 10 B Ne Li Be 6.941 9.012 10.81 12.01 14.01 16.00 19.00 20.18 11 12 13 14 15 16 17 18 Al Si Ar Mg 22.99 2431 Na 26.98 28.09 30.97 32.07 3545 39.95 36 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 Se Mn Fe Co Ni Cu Za Ga Ge As Se Br Kr Ca Ti Cr 39.10 40 08 44 96 47.S8 50 94 52.00 54.94 55 85 58.93 58.69 63 55 65.38 69 72 72 59 74.92 78.96 79 90 83.80 45 46 48 50 $1 52 53 54 49 In 44 47 38 39 Sr 37 40 41 42 43 Zr Mo Ru Rh Pd Ag Cd Sa Sb Te Xe Rb Nb Te 85.47 87.62 SS 91 91.22 92.91 9594 (98) 101.1102.9106.4107 9 112 4114 8118 7121 S127.6126.9 1313 77 7S 72 73 74 75 76 79 80 $1 $2 83 85 S6 56 57 La 55 Ta W Re Os Ir Pt Au Hg TI Pb Bi Po At Rn Cs Ba 132 9 1373 138 9|1785 1509183.9 186 2190 2192 2195.1197 0/200.6204 4 2072 209 0/209)(210)222) S7 89 Ac (223) 226 (227) Fr Ra A 500 mL sample of waste water contains 42.65 ug of mercury, Hg. If the density of the sample is 1.073 g/mL. Calculate the concentration of…