0.02mol过氧化钠等于多少克
0.02mol过氧化钠等于1.56克。根据相关资料查询显示，Na2O2是过氧化钠的化学式0.04mol钠离子，有过氧化钠0.02mol，质量0.02x78=1.56g。等于1.56克。过氧化钠的相对分子质量为78g/mol
0.02mol×78=1.56g
绛旓細2Na202+4H2O=4NaOH+O2 2 1 X 0.01 X=0.02mol 2Na+2H2O=2NaOH+H2 2 1 Y 0.02 Y=0.04mol 鎵浠Na2O2=1.56 mNa=0.92 鎵浠Na2O=1.24 閽犮佹哀鍖栭挔銆杩囨哀鍖栭挔鐨勮川閲忔瘮涓0.92:1.24:1.56=23:31:39
绛旓細铏庡勾蹇箰 LS灏戜簡涓涓潯浠 4.43g 璇蜂竴姝ヤ竴姝ュ畬鎴 672姣崌娣峰悎姘斾綋 0.03mol 娣峰悎姘斾綋閫氳繃鏀剧數鎭板ソ鍙嶅簲 璇存槑 H2鏄0.02mol O2鏄0.01mol 鍙互绠楀嚭 閽犳槸0.04mol 0.92g 杩囨哀鍖栭挔0.02mol 1.56g 浣犵湅 鏄4.34g鍚 閭ｄ箞姘у寲閽犳槸1.86g 0.03mol 绛旀 4锛3锛2 ...
绛旓細鍋囪閽犱笌姘ф皵鍙嶅簲鐨勭敓鎴愮墿鍏ㄩ儴鏄疦a2O锛屽垯n(Na2O)=1/2n(NaOH)=0.02mol 姘у寲閽犵殑璐ㄩ噺=0.2mol*62g/mol=1.24g<1.5g 鍋囪閽犱笌姘ф皵鍙嶅簲鐨勭敓鎴愮墿鍏ㄩ儴鏄疦a2O2锛屽垯n(Na2O2)=1/2n(NaOH)=0.02mol 姘у寲閽犵殑璐ㄩ噺=0.2mol*78g/mol=1.56g>1.5g 璇存槑閽犲弽搴旂殑鐢熸垚鐗╀负姘у寲閽犲拰杩囨哀鍖栭挔鐨勬贩鍚堢墿锛...
绛旓細姘斾綋鎭板ソ鍙嶅簲璇存槑姘㈡皵涓庢哀姘旀瘮涓轰簩姣斾竴銆傛牴鎹瘮渚嬩互鍙婃皵浣撴婚噺鍙眰鍑烘阿姘旈噺锛屽啀鍙緱閽犵墿璐ㄩ噺浠ュ強璐ㄩ噺銆傜煡閬撴哀姘旈噺鍙緱杩囨哀鍖栭挔鐨勭墿璐ㄩ噺浠ュ強璐ㄩ噺銆傜敤鎬昏川閲忓彲寰楁哀鍖栭挔璐ㄩ噺鍐嶅彲寰楀叾鐗╄川閲忋傛哀鍖栭挔涓庢按鍙嶅簲涓嶇敓鎴愭哀姘斻
绛旓細姘寲姘笌杩囨哀鍖栭挔鍙嶅簲浼氱敓鎴愭哀姘旓紝姘寲姘笌閽犲弽搴斾細鐢熸垚姘㈡皵锛屾隘鍖栨阿涓庢哀鍖栭挔鍙嶅簲涓嶇敓鎴愭皵浣撱傛墍浠672ml=0.03mol鐨勬皵浣撲腑锛屽寘鍚阿姘斿拰姘ф皵銆傚洜涓虹敤鐢电伀鑺卞紩鐕冨悗娣峰悎姘斾綋鏃犲墿浣欙紝鍙堝洜涓烘阿姘斾笌姘ф皵鏄寜鐗╄川鐨勯噺涔嬫瘮涓2锛1鍙嶅簲锛屾墍浠ョ敓鎴愭阿姘0.02mol锛屾哀姘0.01mol銆2Na+2HCl==2NaCl+H2鈫戯紝2Na2O2+4...
绛旓細nNaOH=nHCl=CV=0.08*0.5=0.04mol 鐢卞師瀛愬畧鎭掑畾寰嬪彲鐭ワ細nNa锛漬NaOH=0.04mol 鍋囪娉曪細鑻ュ叏涓烘哀鍖栭挔 mNa2O=n*M=0.02mol*62g/mol=1.24 鑻ュ叏涓杩囨哀鍖栭挔 mNa2O2=n*M=0.02mol*78g/mol=1.56 鐜扮敓鎴愮墿璐ㄩ噺1.5g 1.24銆1.5銆1.56 鏁呴塁.姘у寲閽犲拰杩囨哀鍖栭挔 ...
绛旓細鈭2X+X=0.03 X=0.01 鎵浠ヨ,浜х敓浜0.02mol鐨勬阿姘斿拰0.01mol鐨勬哀姘斾簡 鍐嶇敱2Na +2 H2O ===2NaOH +H2鈫戝彲浠ョ煡閬:姘㈡皵鏈0.02mol ,鎵浠ュ師鏉ラ噾灞為挔鏈0.04mol,璐ㄩ噺鏄0.04脳23=0.92(鍏)鐢2 Na2O2 + H2O === 4NaOH +O2鈫戝緱鐭,0.01mol鐨勬哀姘旂敓鎴,鍒欐湁0.02mol鐨杩囨哀鍖栭挔鍙嶅簲,璐...
绛旓細1銆2Na2O2+4HCl=4NaCl+2H2O+O2 2銆丯aHCO3+HCl=NaCl+H2O+CO2 3銆2CO2+2Na2O2=2Na2CO3+O2 2.24L鏄疌O2鍜孫2娣峰悎姘斾綋锛屽叡0.1mol 2.016L涔熷彲鑳芥槸娣峰悎姘斾綋锛岀湅CO2涓嶯a2O2鍙嶅簲锛岃皝杩囬噺锛屽叡0.09mol 鍗虫皵浣撳噺灏0.01mol锛屽嵆鍙嶅簲3涓弽搴斾簡CO2锛0.02mol 锛1锛夎嫢鍙嶅簲3涓璑a2O2杩囬噺锛屽嵆鍙嶅簲2鐢熸垚...
绛旓細鈻砎44.8 22.4 22.4X 2.24L-2.016LX=0.448L鏍规嵁纰冲師瀛愬畧鎭掑緱:涓浠芥贩鍚堢墿涓惈n(NaHCO3)=n(CO2)=0.448L/22.4L/mol=0.02mol璁句竴浠芥贩鍚堢墿涓惈杩囨哀鍖栭挔鐨勭墿璐ㄧ殑閲忎负Y2Na2O2+4HCl=4NaCl+2H2O+O2 鈫 2 22.4 Y 2.24L-0.448LY=0.16mol鍒欏師娣峰悎鐗╀腑杩囨哀鍖栭挔鍜岀⒊閰告阿閽犵殑鐗╄川鐨...
绛旓細4 C AlCl3+ 4Na+2H2O=3NaCl+NaAlO2+2H2 1mol 4mol 0.025mol 0.1mol 0.1*23=2.3g 5 C A姘у寲鑳藉姏鏇村己 B Fe3+锛孎e2+ D杩囨哀鍖栭挔涓鏄纰辨ф哀鍖栫墿 6 2Al+ 6HCl= 2AlCl3+3H2 2mol 6mol 2mol 0.04mol 0.12mol 0.02mol 0.06mol ...
