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- Which has the greater number of particles, 3.011x1023 N2 molecules or 14.01 g N2 molecules? a. 3.011x1023 N2 molecules b. 14.01 g N2 molecules c. They have the same number of particles1Mg + 1H2SO4 1MgSO4 + ___H22. 3Fe + ___O2 1Fe3O43. 2Pb(NO3)2 2PbO + ___NO2 + 1O24. ___C2H6 + 7O2 4CO2 + 6H2O5. 2BaO2 ___BaO + 1O26. 1MnO2 + 4HCl1MnCl2 + ___H2O + 1Cl27. 2C3H6 + 9O2 ___CO2 + 6H2O8. 2KMnO4 + ___HCl2KCl + 2MnCl2 + 4H2O + 1Cl2OF Ne Li Be 69419 012 11 12 Na Mg 22.992431 19 10.11201 1401 16.00 19 00 20.18 14 15 16 17 18 13 Al a Ar 26 98 28 09 30 97320735 45 39.95 33 34 35 Se Br 20 21 22 31 32 24 25 Cr 26 27 28 29 30 36 Ma Fe Ce NI 39.10 40 os 44 9647.8s 509452 00 5494 s5.85 58 93 58 69 63.5s65 38 69.7272 59 74 92 78 96 79 90 s3.80 K Ca Se Ti Cu Za Ga Ge As Kr 51 52 53 54 Sa S 37 38 39 40 41 42 43 44 45 46 Rh Pd 47 48 49 Rb $5.47 8762 88 9191 22929195 94 (95) 10111029105 4l10791124114s18.71211276126 91313 55 36 37 Ba La Hr Ta w 13291373138 9178 sl180 9l183.9|186 2190 2|192 2195 1l197 ol200 6/204 a/207.2/209 olc09210la2 87 SS 89 Fr Ra Ac (223) 226 227 Sr Y Zr N Mo Te Ru Ag Cd In Te Xe 72 73 74 75 76 77 78 79 80 S1 $2 83 84 85 86 Re Os Ir Pr Au Hg g TI Pb Bi Po At Rn Question 5/17 ميز هذا السؤاله A 0.600 g sample containing arsenic (As) was converted to H3AS04 by suitable treatment. 40.00 mL of 0.07891 M AGNO3 was then added to the acid to precipitate arsenic quantitatively as Ag3AsO4. The excess AGNO3 was…
- 5. Calculate the percent by mass of each element in the following compounds to one decimal place. a. C12H22011 .oienodisoid ms b. K2CRO4represents the mass fråctlons A В 27.29 g 6.41 g C 27.29% C 72.71% 17.09 g O. 72.71 g 100% CO2 100.0 g CO2 23.5 g CO, | 5. Which graph displays an incorrect composition relationship? a. Graph A b. Graph B c. Graph C d. All of the graphs are correct. SAMSUNGsity o... Fingsbo... ckboard... EARED4 Method? 7... 9 2 W 6 9 QUESTION 5 One mole of copper(II) sulfate, CuSO4, contains 2.41 x 1023 2.41 x 1024 6.02 x 1023 1.51 x 1023 4 Click Save and Submit to save and submit. Click Save All Answers to save all answers. 3 16 MAF 1 23 H R T moles of O. tv Y 8 Save All Answers 8 0.22 S
- ILAam.aspX#b 1.008 4.003 Ba 69419.012 11 Na 22.99 2431 10.81 12.01 14.01 16.00 19.00 20.18 13 12 14 15 16 26.98 28.09 30.97 32.07 3545 3995 32 Ge 19 20 21 Se 22 TI 23 25 Cr 24 26 27 28 30 33 34 Ma 35 36 39 10 40.08 44.96 47.88 50.94 52.00 54.9455.85 58.93 58.69 63.55 65.38 69.7272.59 24.92 78.96 79 3ア 38 42 90 83.80 39 40 41 43 44 45 46 Rh Pd 50 Sr Zr Te 51 52 53 $4 Nb Mo Ru As ca 1079 112 414.8118.7121.S 127 6 126.9 131 78 In Sn S 85 47 87.62889191 22 92.919594 (98) 101. Te Xe 102.9 106. 56 57 72 Hr 73 74 75 76 80 81 82 83 84 85 86 Ba La Ta Re Os Ir TI Pb Bi Po Pt Au Hg At 329 1373138 9|178.5 180.9 183.9 186.2190.21922 195.1 197.0 200 6 204.4 2072 209.0 (209) (210)222) 87 88 Ac Fr Ra 223) 226 (227) 89 How many grams are needed to prepare 250.0 ml of 0.2500 M of Potasium Hydrogen phthalate KHP (204.224 g/mol) from the primary standard KHP solid? 1 O 24578 g 2 20 452 g 30 12 764 g 4. O30.124 gWhat is the mass of 4.9 moles of N2O5? a. 52.92g b. 5.292g c. 0.5292g d. 529.2gBr 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
- Data Tabla 51589 3.053 54.639 52.99 g 52.939 Mass of empty crucible Mass of hydrate Mass of crucible and salt (before) heating Mass of crucible and salt (after: measurement 1) Mass of crucible and salt (after: measurement 2) Mass of water driven off Mass of Anhydrous Salt (Hydrate - Water) In lab a group was trying to determine the hydration number of a sample of Cobalt(II) chloride. In lab they were able to collect the required data (above) but had to finish the lab for homework. Once at home they forgot how to complete the calculation. Would you kindly help them with their calculation? What is the hydration number of this hydrate?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 Answers6 7 1 2 4 5 9 10 11 12 13 14 15 16 17 18 1A 2A ЗА 4A SA 6A 7A SA 1 2 H Не 1.008 4.003 3 4 7 o F 9. 10 Li Be 6.941 9.012 B N Ne 10.81 12.01 14.01 16.00 19.00 20.18 11 12 13 14 15 16 17 18 Na Mg Si Ar 26.98 28.09 30.97 32.07 35.45 39.95 Al P 22.99 24.31 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 Se Cr Mn Fe Ga Ge Se Br Kr Co Ni 39.10 40.08 44 96 4788 50.94 52.00 54.94 5585 58.93 58.69 63.55 6538 69.72 72.59 74.92 78.96 79.90 83.80 K Ca Ti Cu Zn As 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 Sb Te I Pd 85.47 87.62 88.9191.22 92.91 95.94 (98) 101.1 102.9 106.4 107.9 112.4 114.8 118.7 121.8 127.6 126.9 1313 76 77 78 Ir Rb Sr Y Zr Nb Mo Te Ru Rh Ag Cd In Sn Xe 55 56 57 72 73 74 75 79 80 $1 82 | 83 84 85 Ро 86 Cs Ba La Hf Ta Re Os 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 88 89 Fr Ra Ac (223) 226 (227) A 500 mL sample of waste water contains 26.1 µg of mercury, Hg. If the…