Answered: 在質譜分析中,通常會分析下列哪些冰?那。中性分子B、陽離子C.洋蔥d. 部首

Chemistry: Matter and Change

1st Edition

ISBN:9780078746376

Author:Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl Wistrom

Publisher:Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl Wistrom

Chapter3: Matter-properties And Changes

Section: Chapter Questions

Problem 69A

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ᴀᴄᴛɪᴠɪᴛʏ ₁: ꜰᴏᴜʀ Qᴜᴀɴᴛᴜᴍ ɴᴜᴍʙᴇʀꜱᴅɪʀᴇᴄᴛɪᴏɴꜱ: ᴇɴᴜᴍᴇʀᴀᴛᴇ ᴀɴᴅ ᴅᴇꜱᴄʀɪʙᴇ ᴛʜᴇ ꜰᴏᴜʀ Qᴜᴀɴᴛᴜᴍ ɴᴜᴍʙᴇʀꜱ. ᴡʀɪᴛᴇ ʏᴏᴜʀ ᴀɴꜱᴡᴇʀ ᴏɴ ᴇᴀᴄʜ ꜱʜᴀᴘᴇ. ɴᴏᴛᴇ: ᴘʟᴇᴀꜱᴇ ꜰᴏʟʟᴏᴡ ɪɴꜱᴛʀᴜᴄᴛɪᴏɴꜱ.
ᴄʜᴏᴏꜱᴇ ᴛʜᴇ ᴄᴏʀʀᴇᴄᴛ ᴀɴꜱᴡᴇʀ. ᴡʜɪᴄʜ ᴏʀʙɪᴛᴀʟ ɪꜱ ꜰɪʟʟᴇᴅ ɪᴍᴍᴇᴅɪᴀᴛᴇʟʏ ᴀꜰᴛᴇʀ ᴛʜᴇ ₅ꜰ ᴏʀʙɪᴛᴀʟ? * ₅ɢ₆ᴅ₇ꜱ₇ᴅ ʜᴏᴡ ᴍᴀɴʏ ᴏʀʙɪᴛᴀʟꜱ ᴀʀᴇ ɪɴ ᴛʜᴇ ₅ꜱ ꜱᴜʙꜱʜᴇʟʟ? * ₁₂₃₅ ʜᴏᴡ ᴍᴀɴʏ ᴏʀʙɪᴛᴀʟꜱ ᴀʀᴇ ɪɴ ᴛʜᴇ ₄ᴅ ꜱᴜʙꜱʜᴇʟʟ? * ₃₄₅₆ ʜᴏᴡ ᴍᴀɴʏ ᴛᴏᴛᴀʟ ᴇʟᴇᴄᴛʀᴏɴꜱ ᴄᴀɴ ᴛʜᴇ ‘ᴘ’ ᴏʀʙɪᴛᴀʟꜱ ʜᴏʟᴅ? * ₂₆₁₀₁₄ ᴡʜᴀᴛ ᴀʀᴇ ᴛʜᴇ Qᴜᴀɴᴛᴜᴍ ɴᴜᴍʙᴇʀꜱ ᴛʜᴀᴛ ᴅᴇꜱᴄʀɪʙᴇ ᴀ ₃ᴘ ᴏʀʙɪᴛᴀʟ? * ɴ =₃, ʟ=₁, ᴍʟ=₁ɴ =₃, ʟ=₁, ᴍʟ=₀ɴ =₃, ʟ=₁, ᴍʟ=-₁ᴀʟʟ ᴏꜰ ᴛʜᴇ ᴀʙᴏᴠᴇ
ᴀᴄᴛɪᴠɪᴛʏ ₇: ᴍᴏʟᴇᴄᴜʟᴀʀ ɢᴇᴏᴍᴇᴛʀʏ ᴀɴᴅ ᴘᴏʟᴀʀɪᴛʏᴅɪʀᴇᴄᴛɪᴏɴꜱ: ᴅʀᴀᴡ ʟᴇᴡɪꜱ ꜱᴛʀᴜᴄᴛᴜʀᴇꜱ, ɴᴀᴍᴇ ꜱʜᴀᴘᴇꜱ, ᴀɴᴅ ɪɴᴅɪᴄᴀᴛᴇ ᴛʜᴇ ᴘᴏʟᴀʀɪᴛʏ ᴏꜰ ᴛʜᴇꜰᴏʟʟᴏᴡɪɴɢ ᴍᴏʟᴇᴄᴜʟᴇꜱ:ᴀ. ᴄʜ₄ ʙ. ɴᴄʟ₃ ᴄ. ᴄʜ₂ᴏ ᴅ. ᴄʜɴ ᴇ. ꜱᴏ₂ ꜰ. ᴄꜱ₂ ɢ. ᴄᴏ ʜ. ɴ₂ ɪ. ᴄʟᴏ₂- ᴊ. ɴᴏ₃-
On October 21, 1982, the Bureau of the Mint changed the composition of pennies (see Exercise 120). Instead of an alloy of 95% Cu and 5% Zn by mass, a core of 99.2% Zn and 0.8% Cu with a thin shell of copper was adopted. The overall composition of the new penny was 97.6% Zn and 2.4% Cu by mass. Does this account for the difference in mass among die pennies in Exercise 120? Assume the volume of the individual metals that make up each penny can be added together to give the overall volume of the penny, and assume each penny is the same size. (Density of Cu = 8.96 g/cm3; density of Zn = 7.14 g/cm3).
ᴀᴄᴛɪᴠɪᴛʏ ₆: ᴘᴀʀᴀᴍᴀɢɴᴇᴛɪᴄ ᴏʀ ᴅɪᴀᴍᴀɢɴᴇᴛɪᴄ ɪᴏɴ?ᴅɪʀᴇᴄᴛɪᴏɴꜱ: ᴡʀɪᴛᴇ ᴛʜᴇ ᴇʟᴇᴄᴛʀᴏɴ ᴄᴏɴꜰɪɢᴜʀᴀᴛɪᴏɴ ꜰᴏʀ ᴇᴀᴄʜ ɪᴏɴ. ᴅᴇᴛᴇʀᴍɪɴᴇ ᴡʜᴇᴛʜᴇʀ ᴛʜᴇɪᴏɴ ɪꜱ ᴘᴀʀᴀᴍᴀɢɴᴇᴛɪᴄ ᴏʀ ᴅɪᴀᴍᴀɢɴᴇᴛɪᴄ ʙᴀꜱᴇᴅ ᴏɴ ɪᴛꜱ ᴇʟᴇᴄᴛʀᴏɴ ᴄᴏɴꜰɪɢᴜʀᴀᴛɪᴏɴ ₁. ꜰᴇ₃+ ₂. ʙʀ-₃. ꜱɴ₂+ ₄. ᴄʀ₃+ ₅. ꜰ-
He 4.003 1.008 LI Be 6.941 9.012 10 Ne 10.81|12.01 14.01 16.00|19.00 201 17 B 11 12 13 14 16 15 Na Mg SI 18 Ar Al a 22.9924.31 269828.09|30.97|32.07135.45 39.95 20 22 21 23 Se TI vCr 19 24 25 26 27 28 29 30 Za 31 32 33 Ca Ma 34 Se 35 36 r Kr Br Fe Co Ni Ga Ge As 39.10 40.0s44 9647 s5094 52.00 s4.94 55.ss ss93lss.69l63.5sl65.3869.7272.5974.92 78.96 79 90o 83.50 37 33 39 40 41 42 43 44 45 49 503I 46 47 Pd Ag Ct 48 53 52 S Te I Xe 54 Sr e Y Zz NhMe Te Ru Rh 85.478762ss919122|929il9s94 (98) 101.1l102 9l1064107.9|112414slu8.7l12LS 1276126.9lu In Sn 55 56 57 72 73 74 75 76 77 Os 79 10 Si 82 83 4 86 85 At Ra 78 a Ba La- Hr Ia wRe Ir Pt 132.9|137.3|138.91781s09elTs3elis62190 2192 2195 il197.ol200 6l204 4207 2l209.0209210laz Au Hg TI Pb Bi 87 Fr Ra A c (223) 226 227) Question 5/ 10 ميز هذا السؤال If 10.0 ml of an unknown sample of phosphoric acid was titrated against 0.12 M standard solution of NaOH using phenolphthalei. as an indicator, and 10.30 ml of NaOH was required. Calculate the…
ᴄʜᴏᴏꜱᴇ ᴛʜᴇ ᴄᴏʀʀᴇᴄᴛ ᴀɴꜱᴡᴇʀ. ᴡʜɪᴄʜ ᴏꜰ ᴛʜᴇ ꜰᴏʟʟᴏᴡɪɴɢ ꜱᴇᴛꜱ ɪꜱ ɴᴏᴛ ᴀɴ ᴀᴄᴄᴇᴘᴛᴀʙʟᴇ ꜱᴇᴛ ᴏꜰ Qᴜᴀɴᴛᴜᴍ ɴᴜᴍʙᴇʀꜱ? * ɴ=₂, ʟ=₁, ᴍʟ=-₁ɴ=₇,ʟ=₃,ᴍʟ=₃ɴ=₂,ʟ=₁,ᴍʟ=₁ɴ=₃,ʟ=₁,ᴍʟ=-₃
ᴀᴄᴛɪᴠɪᴛʏ ₅: ᴘᴀʀᴀᴍᴀɢɴᴇᴛɪᴄ ᴏʀ ᴅɪᴀᴍᴀɢɴᴇᴛɪᴄ ᴀᴛᴏᴍ?ᴅɪʀᴇᴄᴛɪᴏɴꜱ: ᴡʀɪᴛᴇ ᴛʜᴇ ᴇʟᴇᴄᴛʀᴏɴ ᴄᴏɴꜰɪɢᴜʀᴀᴛɪᴏɴ ꜰᴏʀ ᴇᴀᴄʜ ᴀᴛᴏᴍ. ᴅᴇᴛᴇʀᴍɪɴᴇ ᴡʜᴇᴛʜᴇʀ ᴛʜᴇᴀᴛᴏᴍ ɪꜱ ᴘᴀʀᴀᴍᴀɢɴᴇᴛɪᴄ ᴏʀ ᴅɪᴀᴍᴀɢɴᴇᴛɪᴄ ʙᴀꜱᴇᴅ ᴏɴ ɪᴛꜱ ᴇʟᴇᴄᴛʀᴏɴᴄᴏɴꜰɪɢᴜʀᴀᴛɪᴏɴ. ₁. ᴀʀɢᴏɴ ₂. ᴄᴏᴘᴘᴇʀ ₃. ᴘʜᴏꜱᴘʜᴏʀᴜꜱ ₄. ᴄᴏʙᴀʟᴛ ₅. ꜱᴏᴅɪᴜᴍ
ʜᴏᴡ ᴍᴀɴʏ ᴏʀʙɪᴛᴀʟꜱ ʜᴀᴠᴇ ᴛʜᴇ Qᴜᴀɴᴛᴜᴍ ɴᴜᴍʙᴇʀꜱ ɴ=₄ ᴀɴᴅ ʟ = ₂? * ₅₇₁₀₁₄ ʜᴏᴡ ᴍᴀɴʏ ᴏʀʙɪᴛᴀʟꜱ ᴄᴀɴ ʜᴀᴠᴇ ᴛʜᴇ ꜰᴏʟʟᴏᴡɪɴɢ Qᴜᴀɴᴛᴜᴍ ɴᴜᴍʙᴇʀꜱ, ɴ = ₃, ʟ = ₁, ᴍʟ = ₀? * ₁₂₃₄ ᴡʜᴀᴛ ɪꜱ ᴛʜᴇ ᴍᴀxɪᴍᴜᴍ ɴᴜᴍʙᴇʀ ᴏꜰ ᴇʟᴇᴄᴛʀᴏɴꜱ, ᴡʜɪᴄʜ ᴄᴀɴ ʜᴀᴠᴇ ꜰᴏʟʟᴏᴡɪɴɢ Qᴜᴀɴᴛᴜᴍ ɴᴜᴍʙᴇʀꜱ, ɴ = ₃, ʟ = ₁, ᴍ = -₁? * ₂₄₆₁₀ ᴛʜᴇ ᴍᴀxɪᴍᴜᴍ ɴᴜᴍʙᴇʀ ᴏꜰ ᴇʟᴇᴄᴛʀᴏɴꜱ ᴛʜᴀᴛ ᴄᴀɴ ꜰɪᴛ ɪɴ ᴀɴ ᴏʀʙɪᴛᴀʟ ᴡɪᴛʜ ɴ = ₃ ᴀɴᴅ ʟ = ₁? * ₂₆₁₀₁₄ ᴡʜɪᴄʜ ᴏꜰ ᴛʜᴇ ꜰᴏʟʟᴏᴡɪɴɢ Qᴜᴀɴᴛᴜᴍ ɴᴜᴍʙᴇʀꜱ ɢᴏᴠᴇʀɴꜱ ᴛʜᴇ ꜱᴘᴀᴛɪᴀʟ ᴏʀɪᴇɴᴛᴀᴛɪᴏɴ ᴏꜰ ᴀɴ ᴀᴛᴏᴍɪᴄ ᴏʀʙɪᴛᴀʟ? * ᴘʀɪɴᴄɪᴘᴀʟ Qᴜᴀɴᴛᴜᴍ ɴᴜᴍʙᴇʀᴀᴢɪᴍᴜᴛʜᴀʟ Qᴜᴀɴᴛᴜᴍ ɴᴜᴍʙᴇʀᴍᴀɢɴᴇᴛɪᴄ Qᴜᴀɴᴛᴜᴍ ɴᴜᴍʙᴇʀꜱᴘɪɴ Qᴜᴀɴᴛᴜᴍ ɴᴜᴍʙᴇʀ
Victoria carried out the experiment and added 1.9487 g zinc and 1.9371 g iodine to a flask. After the experiment, she recovered 2.3284 g of zinc iodide and 1.4497 g unreacted zinc. What mass of zinc reacted?
ᴄʜᴏᴏꜱᴇ ᴛʜᴇ ᴄᴏʀʀᴇᴄᴛ ᴀɴꜱᴡᴇʀ. ᴛʜᴇ ᴘʀɪɴᴄɪᴘʟᴇ Qᴜᴀɴᴛᴜᴍ ɴᴜᴍʙᴇʀ ɪꜱ ʀᴇʟᴀᴛᴇᴅ ᴛᴏᴀ. ᴛʜᴇ ꜱʜᴀᴘᴇ ᴏꜰ ᴛʜᴇ ᴏʀʙɪᴛᴀʟʙ. ᴛʜᴇ ɴᴜᴍʙᴇʀ ᴏꜰ ᴇʟᴇᴄᴛʀᴏɴꜱᴄ. ᴛʜᴇ ꜱᴘᴀᴛɪᴀʟ ᴏʀɪᴇɴᴛᴀᴛɪᴏɴ ᴏꜰ ᴛʜᴇ ᴏʀʙɪᴛᴀʟᴅ. ᴛʜᴇ ᴀᴠᴇʀᴀɢᴇ ᴅɪꜱᴛᴀɴᴄᴇ ᴏꜰ ᴛʜᴇ ᴍᴏꜱᴛ ᴇʟᴇᴄᴛʀᴏɴ-ᴅᴇɴꜱᴇ ʀᴇɢɪᴏɴꜱ ꜰʀᴏᴍ ᴛʜᴇ ɴᴜᴄʟᴇᴜꜱ
In an experiment, 125 cm3 of zinc and 125 cm3 ofiodine are mixed together and the iodine is completely converted to 164 cm3 of zinc iodide. What volume of zinc remains unreacted? The densities of zinc,iodine, and zinc iodide are 7.13 g/cm3, 4.93 g/cm3,and 4.74 g/cm3, respectively

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