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- + O°H +(HO)D)+osH O Ca,0 O HCaz CaSO O CasO, & %73 Al ihe school ey decided to adt sodum carbonae (NaCOJ tohe sampled wster in the school tankin order to restore he sttavalue close to The balanced equartion for the reaction is Na,Co.e) + 2HC (ag - 2Nac (ag • H0()• co; (al 731 Calcuate the mass of sodum cartonate (Na,CO.) required to neutralize each 1 dm' of the sample water 732 Ater the neutralization. the water tasted saty. Give a reason for the saly taste of the water Refer to the equation above.Your =- Fren C Cyr Savv Savv AF ST savvasrealize.com STRY-4(M-F)-23-24 Chmark 3-D Assessment 1: Storylines 1 and 2 Read the passage and answer the next 2 questions. When the element zinc (Zn) is added to hydrochloric acid (HCI), a single replacement reaction occurs. It produces molecular hydrogen (H2) and zinc chloride (ZnCl2). Zn(s)+2 HCI(1) H2(g) + ZnCl2(s) A chemist combines 1.03 grams of zinc with an excess amount of hydrochloric acid in an Erlenmeyer flask. A visible reaction occurs with the formation of bubbles and color change. When a burning wooden splint is inserted into the flask, a distinct popping noise is heard, indicating hydrogen gas was produced. Periodic Table If all of the zinc reacts, what is the total mass of zinc chloride prod should include three significant figures. The total mass of zinc chloride (ZnCl2) formed is Review Progress ← 7 Desk 2 C 54 # 3 @ 12 W e r B DELL Question 37 of 40 ° ° * 25 % 66 A & 27 * ( 8 6 t y u i O O
- guiestior #O Triat 1. 1.50 1.50 1.50 2.00 2. 3.00 2.00 4.00 3.00 3:00 what es Hiurate comlent tn Herealier above?3 Handwritten answers will be devoted multiple!! Draw using any tool plz.Nernst equation for pair BrO; |Br": RT a(BrO; )a°(H*) E = E° + - In nF a(Br¯) RT a(BrO;)a(H*) E = E° + nF a(Br-) RT a(BrO, )a°(H*) E = E° – In nF а (Br-) nF a(BrO; )a°(H*) lg RT E = E° + a(Br-)
- H;CO A B H. E D10 Chem101 Question 3 of 10 Balance the following chemical equation (if necessary): BF (s) + Li:SO:(s) → LiF(s) + B:(SOs)»(s) 3 4 8 Os (s) (1) (g) (aq) LIF BF3 B:(SOs)s Li.SO. Reset •x H.O DeleteUsing the appropriate bond energies, calculate the heat of reaction AĦ for the following reaction: Omar bin V CI CI do Data CI-C- CI + H-H- CI-C-CI + H-CI [+] Molal freezing point depression and boiling point elevation constants For example, the Kf and K for water. CI H. [-] Bond energies You can find a table of bond energies by using the Data button on the ALEKS toolbar. energy energy (k)/mol) bond (k)/mol) energy (kJ/mol) Round your answer to the nearest k/mol. bond bond Note: For clarity, all lone pairs have been omitted from the molecular structures. H-H 436 O-H 497 F-F 159 H-F 570 O-F 215 F-a 261 H-CI 431 O-CI 234 F-Br 280 kJ H-Br 366 O-Br 210 F-I 272 mol H-I 298 0-1 213 C-a 243 H-C 413 O-C 385 Cl-Br 219 H-O 497 O=C 532 C-I 211 H-N 391 1077 Br-Br 194 H-P 351 0-0 210 Br-I 179 H-S 381 O=0 498 I-1 152 O-N 206 O=N 631 O=S 551 energy (k/mol) energy (k)/mol) bond energy (kJ/mol) bond bond S-H 381 N-H 391 C-H 413 392 N-C 356 S-F C-F 460 272 S-d N=C 615 C-CI 350 S-Br 230 NEC 749 C-Br 293…
