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标准状况下，22.4L CO2气体中（ ）
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高三上学期化学《》真题及答案
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填写下列空白1标准状况下0.5molH2占有的体积是____L2标准状况下1molO2N2H2的混合
下列叙述正确的是①标准状况下0.2mol任何物质的体积均为4.48L.②若1mol气体的体积为22.
①②③④
②③⑥⑦⑧
⑤⑥⑦⑧
④⑦⑧
下列说法正确的是
0℃,101kPa时，1 molO.
2
和N.
2
的混合气体的总体积约为22.4L.
标准状况下，O
2
的体积约为22.4L.
标准状况下，0.5 mol的H
2
O的体积约为11.2L.
标准状况下，CO
2
的气体摩尔体积为22.4L.
下列说法中正确的是
标准状况下，22.4L水中所含的分子数约为6.02×1023
标准状况下，aL的氧气和氮气的混合物含有的分子数约为
×6.02×1023
常温常压下，48g O3气体含有的氧原子数为6.02×1023
2.24L CO2中含有的原子数为0.3×6.02×1023
1CO2的相对分子质量为______________它的摩尔质量为________2在标准状况下0.
在标准状况下15gCO与CO2的混合气体体积为11.2L.则1混合气体的密度是___________
CO和CO2的混合气体36g通过足量的灼热CuO充分反应后测得CO2的体积为22.4L标准状况下计算
向50mLNaOH溶液中逐渐通入一定量的CO2假设溶液体积不变随后取此溶液10mL将其稀释至100m
二硫化碳液体能够在氧气中完全燃烧生成CO2和SO2今用0.228gCS2在448mLO2在标准状况下
112mL
224mL
336mL
448mL
下列有关气体摩尔体积的说法中正确的是
在标准状况下，0.5 mol任何气体的体积都必定是11.2L.
在标准状况下，1 mol任何物质的体积都约是22.4L.
常温常压下，1 mol任何气体的体积都约是22.4L.
在标准状况下，0.5 mol CO
2
所占有的体积约是11.2L.
下列说法中正确的是
在标准状况下，1molH
2
SO
4
的体积约为22.4L
在标准状况下，17gNH3的体积约为22.4L
1molCO
2
和CO的混合气体在标准状况下，所占的体积约为22.4L
1mol某气体体积为22.4L时，它一定处于标准状况
CO和CO2的混合气体18g完全燃烧后测得CO2体积为11.2L.标准状况则1混合气体中CO的质量是
在标准状况下将224LHCl气体溶于635mL水中所得盐酸的密度为1.18g/cm3试计算1所得盐酸
CO和CO2的混合气体18g完全燃烧后测得CO2的体积为11.2L.标准状况试回答1混合气体中CO的
在标准状况下将224L氯化氢气体溶于635mL的水密度为1.00g/cm3中所得盐酸的密度为1.18
在标准状况下相同质量的下列气体中体积最大的是
NO
CO2
N2
O2
下列说法正确的是
0℃,101KPa时，1molO
2
和N
2
的混合气体的总体积约为22.4L
标准状况下，O
2
的体积约为22.4L
标准状况下，0.5mol的CCl
4
的体积约为11.2L
标准状况下，CO
2
的气体摩尔体积为22.4L
1在标准状况下CO和CO2的混合气体共39.2L.质量为61g则两种气体的物质的量之和为______
已知COCO2的混合气体质量共10g标准状况下体积为6.72L.则混合气体中COCO2的质量及标准状
m(CO) = 4.2g
V(CO) = 2.24L
m(CO
2
) = 4.4g
V(CO
2
) = 4.48L
下列各组物质中分子数相同的是
2L. SO
2
和2L. CO
2
9 g水和标准状况下11.2L. CO
2
标准状况下1 mol氧气和22.4L.水
0.1 mol氢气和2.24L.氯化氢气体
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硫酸铁铵[NH4FeSO42•xH2O]是一种重要铁盐．为充分利用资源变废为宝在实验室中探究采用废铁屑来制备硫酸铁铵具体流程如图 回答下列问题 1步骤①的目的是去除废铁屑表面的油污方法是． 2步骤②需要加热的目的是温度保持80﹣95℃采用的合适加热方式是．铁屑中含有少量硫化物反应产生的气体需要净化处理合适的装置为填标号． 3步骤③中选用足量的H2O2理由是．分批加入H2O2同时为了溶液要保持pH小于0.5． 4步骤⑤的具体实验操作有经干燥得到硫酸铁铵晶体样品． 5采用热重分析法测定硫酸铁铵晶体样品所含结晶水数将样品加热到150℃时失掉1.5个结晶水失重5.6%．硫酸铁铵晶体的化学式为．
X﹣的核外电子排布为288则X元素在周期表中的位置是
镭是周期表中第7周期的IIA族元素下列关于镭的性质的描述中不正确的是
陶瓷是火与土的结晶是中华文明的象征之一其形成性质与化学有着密切的关系．下列说法错误的是
下列物质属于碱的是
下列仪器在使用中不能加热的是
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实验室制备溴苯的反应装置如图所示关于实验操作或叙述错误的是
在普通铝中加入少量Cu和Mg后形成一种称为拉维斯相的MgCu2微小晶粒其分散在Al中可使得铝材的硬度增加延展性减小形成所谓“坚铝”是制造飞机的主要材料．回答下列问题 1下列状态的镁中电离最外层一个电子所需能量最大的是填标号． 2乙二胺H2NCH2CH2NH2是一种有机化合物分子中氮碳的杂化类型分别是 ．乙二胺能与Mg2+Cu2+等金属离子形成稳定环状离子其原因是其中与乙二胺形成的化合物稳定性相对较高的是填“Mg2+”或“Cu2+”． 3一些氧化物的熔点如下表所示 解释表中氧化物之间熔点差异的原因． 4图a是MgCu2的拉维斯结构Mg以金刚石方式堆积八面体空隙和半数的四面体空隙中填入以四面体方式排列的Cu．图b是沿立方格子对角面取得的截图．可见Cu原子之间最短距离x＝pmMg原子之间最短距离y＝pm．设阿伏加德罗常数的值为NA则MgCu2的密度是g•cm﹣3列出计算表达式．
2molAl的质量为
下列化学用语不正确的是
NaOH溶液滴定邻苯二甲酸氢钾邻苯二甲酸H2A的Ka1＝1.1×10﹣3Ka2＝3.9×10﹣6溶液混合溶液的相对导电能力变化曲线如图所示其中b点为反应终点．下列叙述错误的是
InBritainandothercountriesyoungpeoplesometimestakeagapyearayearoffbetweenhighschoolandcollegeThisideanevergainedabigfollowinginAmericaRecentnewsreportshavesuggestedthatinterestmaybegrowingthoughtherearenoofficialnumbers. CharlesDeaconDeanofAdmissionsatGeorgetownUniversityinWashingtonD.C.estimatesthatinthecurrentfirst﹣yearclassof1600studentsonlyabout25decidedtotakeayearoff.Hesaysthisnumberhasnotchangedmuchovertheyears. Mr.Deaconsaysthemostcommonreasonfortakingagapyearistohaveachancetotravelbuthesaysinternationalstudentsmaytakeagapyeartomeetrequirementsathomeformilitaryduty. Somehighschoolgraduatesseeayearoffasachancetorecoveraftertwelveyearsofrequirededucationbutitcanalsogivestudentsachancetoexploretheirinterests.Studentshopingtobedoctorsforexamplecouldlearnabouttheprofessionbyvolunteeringinahospital. Manycollegesanduniversitiessupportgap﹣yearprojectsbypermittingstudentstodelaytheiradmission.Expertssaystudentscangrowemotionallyandintellectuallyastheyworkatsomethingtheyenjoy. TheHarvardadmissionsofficehasanessayonitswebsitecalledTimeOutorBurnOutfortheNextGeneration.Itpraisestheideaoftakingtimeoff.tostepbackthinkandenjoygaininglifeexperiencesoutsidethepressureofstudies.ItalsonotesthatstudentsaresometimesadmittedtoHarvardorothercollegespartlybecausetheydidsomethingunusualwiththattime. OfcourseagapyearisnotforeveryoneStudentsmightmisstheirfriendswhogoondirectlytocollege.Andparentsmightworrythattheirchildrenwilldecidenottogotocollegeoncetheytaketimeoff.Anotherconcernismoney.Ayearoffawayfromhomecanbecostly. HollyBull'sjobistospecializeinhelpingstudentsplantheirgapyear¨.Shenotesthatseveralbookshavebeenwrittenaboutthissubject.ShesaysthesebooksalongwithmediaattentionandtheavailabilityofinformationontheInternethaveincreasedinterestintheideaofayearoffandshepointsoutthatmanygap﹣yearprogramscostfarlessthanayearofcollege. 1Whatisthepassagemainlyabout? A.MoreandmoreAmericanstudentsarechoosingtotakeayearoff. B.IfyouwanttogotoanAmericanuniversitytakeagapyearfirst. C.ItislikelythattakingagapyearisbecomingpopularinAmerica D.Americansholddifferentopinionstowardsstudents'takingagapyear. 2Howmanyreasonsforstudents'takingagapyeararementionedinthepassage? A.2 B.3 C.4 D.5 3TheessayTimeOutorBurnOutfortheNextGenerationsuggeststhat. A.everystudentmusttakeagapyearbeforeapplyingforafamousuniversity B.somefamousuniversitiesencouragestudentstogainmorelifeexperiences C.takingagapyearcanmakestudentsfreefromlifelearning D.thestressofstudiesdoesharmtothestudents'health 4Whatcanwelearnfromthepassage? A.Booksandmediahavecontributedtothestudents'interestinschoollearning. B.CharlesDeacondoesn'tsupporttheideaofthestudents'takingagapyear. C.Parentsnightdisagreewiththeprogramconcernedabouttheirchildren'sfuture. D.Expertsagreetakingayearoffwillbenefitthestudentsemotionallyandphysically.
某无色透明的溶液中能大量共存的离子组是
科学家合成出了一种新化合物如图所示其中WXYZ为同一短周期元素Z核外最外层电子数是X核外电子数的一半．下列叙述正确的是
30分BeingjoblessforthelastthreemonthsIamupsetnowadays.Mysonhaslosthis1fromagoodschoolandhemighthavetogotoalessqualifiedschool.Ihavemovedfromaspacious宽敞的apartmenttoasmalloneinorderto2mylivingexpenses.Mywifehasbuiltextrastress.Ontopofthatmyfatherin﹣law3aweekagowhichhasaddedfueltofire4ourfamilyintoamoreterriblestate.InthesecircumstancesIhavetwomental5:eithertofeelupsetandkeeplosingmypeaceofmindor6mynegativethoughtswithsupermentalpowersaboutself﹣confidenceandconsistencyand7applyingfornewjobswithpositiveattitude.IchoosethesecondoptionbecauseIbelievethatthepainIam8todaywillbuildupmy9.Mystrengthswillthenincreasesmyconfidenceandmakemeagoodtimesmakemea10manoneday.Iunderstandthatgoodandbadstagesarepartof11.Whilegoodtimesmakemehappybadtimes12the‘inner'me.Twomonthslater13Ihavefinallylandedonajobwhichisveryexcitingandoffersanicesalary.Timehashealedmywife'smentalstress14thedeathofherfather.Mysonhasalreadybeenacceptedbyanothergoodschoolbecausetheadmissionsfornewacademicyearwerestill15!AsIambackonthetrackofnormallifeIcan16saythatthemostimportantthingsthathelpedme17thecrisis危机weremyconsistentcharacterofpatienceand18attitudetowardslife.SowhileIwishyouallthebestlifecan19youIwouldhighlyrecommendtakingthesameattitudetowardslife20youaretrappedinanyofsuchsituations.1.A.admission B.benefit C.diploma D.permission2.A.share B.reduce C.break D.raise3.A.showedup B.setoff C.felldown D.passedaway4.A.putting B.finding C.forming D.lifting5.A.problems B.concerns C.choices D.activities6.A.link B.replace C.mix D.exchange7.A.regret B.stop C.keep D.risk8.A.practicing B.suffering C.producing D.relieving9.A.intelligence B.body C.character D.reputation10.A.carful B.hard﹣working C.easy﹣going D.successful11.A.life B.wealth C.time D.health12.A.hide B.destroy C.strengthen D.kill13.A.desperately B.unwillingly C.hopefully D.fortunately14.A.regardlessof B.dueto C.insteadof D.apartfrom15.A.occupied B.empty C.open D.closed16.A.disappointedly B.surprisedly C.deliberately D.confidently17.A.fight B.meet C.change D.delay18.A.general B.positive C.friendly D.honest19.A.offer B.expect C.manage D.send20.A.asif B.inthat C.nowthat D.incase
15分RecentlyanIndianfilm'HindiMedium'hasmade1hit!Ittoldastorythatacouplesparednoeffort2givetheirdaughterthe3goodeducationandfinallyshewasacceptedbytheeliteofDelhi.ActuallythisphenomenoncanalsobeseeninChina.Todaymoreandmoreparentsadopttheideaof''personalqualityeducation'andcommittoencouragingtheirchildrentocultivateavarietyofinterestsoutsidethe4traditionclassroomactivitieslikeplayingtheviolinrobotprogrammingandsoon.Butparticipating5toomanyextracurricularactivitiesdoesdeprivethechildrenoftheirplaytime.It6pointoutthatmoreChineseparentsneedtorealizethatthehand﹣holdingmentalityisoverwhelmingtheirchildren.Theyhavetoloosentheircontrolgivethekidstimeof7theyownandletthemtaketheinitiative.Todayparentsworry8endlessaboutpreparingthekidsfortherealworldabattlefieldwhereeveryonemustarmthemselvesforafight.Butthereisnodenying9thebesttimesinlifearethose10stealmomentswespendwithothers﹣anidleafternoonwithabelovedcompanionacupofteawithanoldfriendorasimplegameoftagwithclassmatesafterschool.
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×6.02×1023 常温常压下，48g O3气体含有的氧原子数为6.02×1023 2.24L CO2中含有的原子数为0.3×6.02×1023
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