1 . 常温时,用石墨电极电解500mLNaCl和CuSO4混合溶液,当电路中通过2mol电子时,两极均产生标准状况下16.8L气体,其中阳极产生的O2在标准状况下是5.6L(假定产生的气体全部放出,电解前后溶液体积变化忽略不计),求:
(1)原溶液中c(NaCl)=___________ ,c(CuSO4)=___________ 。
(2)电解后溶液的c(OH-)=___________ 。
(1)原溶液中c(NaCl)=
(2)电解后溶液的c(OH-)=
您最近一年使用:0次
解题方法
2 . 用
溶液滴定体积均为
、浓度均为
盐酸和醋酸溶液得到如图所示的滴定曲线:
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/30/13d33057-2ca9-48e6-852c-5e7e7a77ad26.png?resizew=416)
(1)用
溶液滴定醋酸溶液通常所选择的指示剂为______ (选填“酚酞”、“甲基橙”或“石蕊”),符合其滴定曲线的是______ (选填“Ⅰ”或“Ⅱ”)。
(2)
盐酸中,由水电离出的![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d7d1adbf68f1aeb300b526aaadd09fb.png)
______
。
(3)图中
和
大小的比较:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4764374bd2fb78e59cd0b283637baeb.png)
______ (选填“<”或“=”或“>”)
。
(4)在
时,有
为
的盐酸和
为
的
溶液,
该盐酸恰好中和
该
溶液。
①若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35e6e2bf6c85b6442d8a9f744e8b07c2.png)
______ (填数字)。
②若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35e6e2bf6c85b6442d8a9f744e8b07c2.png)
______ (填数字)。
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2351a754c1d22dad75603c538795782.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3c5eb092d5cb89e8907fb3d76ca2fb0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6cfd7bdf4228be7fdd5e712d429fba2.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/30/13d33057-2ca9-48e6-852c-5e7e7a77ad26.png?resizew=416)
(1)用
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce93086f0133444d40743d654cba1c55.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6cfd7bdf4228be7fdd5e712d429fba2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d7d1adbf68f1aeb300b526aaadd09fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c4d9129b79ac985bc46c88b092aeb02.png)
(3)图中
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4764374bd2fb78e59cd0b283637baeb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c63055a5d6916f99d07fede49120753f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4764374bd2fb78e59cd0b283637baeb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c63055a5d6916f99d07fede49120753f.png)
(4)在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c7889f265b1bac6f19624eb93f5dbdc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1066e53bf79a3cdff7ec2934bd09e272.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1066e53bf79a3cdff7ec2934bd09e272.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce93086f0133444d40743d654cba1c55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8683834f72bf7aa042a3fa03bd48a835.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5297853f28b7909b146987956e2ae09.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce93086f0133444d40743d654cba1c55.png)
①若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/501f8527445e6a743ed3de4603df6a45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35e6e2bf6c85b6442d8a9f744e8b07c2.png)
②若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f11cded6f8c560b44771ec89e62905fc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35e6e2bf6c85b6442d8a9f744e8b07c2.png)
您最近一年使用:0次
23-24高二·全国·假期作业
3 . 已知由C、H、O元素组成的某化合物9.2 g完全燃烧后可以得到17.6 g CO2和10.8 g H2O,通过计算确定该化合物的实验式_______ 。(写出解题过程)
您最近一年使用:0次
4 . 已知:
,其平衡常数随温度变化如下表所示。
(1)上述反应的化学平衡常数表达式为![](https://staticzujuan.xkw.com/quesimg/Upload/formula/940db2e9b806d2c9dbedcf14f05b9480.png)
___________ 。
(2)
时,向体积为
反应器中通入一定量的
和
,发生上述反应,
和
浓度变化如图所示,则
时,平均反应速率![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb7342545a96338c09070fb8981d6daa.png)
___________ 。
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/23/fcd3b425-0c31-4938-9116-80e62fd3ed25.png?resizew=239)
(3)若在
时进行,且
的起始浓度均为
,该条件下,
的最大转化率为___________
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f83298d2aafcd1cf91bc490959ea457.png)
温度![]() | 400 | 500 | 850 |
平衡常数 | 9.94 | 9 | 1 |
(1)上述反应的化学平衡常数表达式为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/940db2e9b806d2c9dbedcf14f05b9480.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aff3f2e126ab72ef3407b8e7c44ec4ea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b65fa481b33601e25a1f0192e2c2716b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5a122e25cf4eb9f03ffe5ec823bfc31.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6287dab91a4428da92c3ce8f5550973.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5a122e25cf4eb9f03ffe5ec823bfc31.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6287dab91a4428da92c3ce8f5550973.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7060cb2db294ce9c4dede46efde8c8c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb7342545a96338c09070fb8981d6daa.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/23/fcd3b425-0c31-4938-9116-80e62fd3ed25.png?resizew=239)
(3)若在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7cd6a537c343e6884a2318a4eb3c917b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fcd437cbe80354417307d3829bca5f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cbc212a4d1e061e42e2d9ff3c8dc2dfa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5a122e25cf4eb9f03ffe5ec823bfc31.png)
您最近一年使用:0次
名校
解题方法
5 . 研究化学反应中的能量变化对生产、生活有重要的意义。
(1)甲烷是一种高效清洁的新能源,
完全燃烧生成液态水时放出的热量为
,则表示
燃烧热的热化学方程式为___________ 。
(2)已知:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e029cc1f7d07eeb136bd3946a7eb23e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32410867843f1a7ef11410da8f3f8dab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b994a3d0126e44d032969365e6ebc25.png)
则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27d3d85459fd9f18216c493e244e9d77.png)
___________ (填含
、
的表达式),![](https://staticzujuan.xkw.com/quesimg/Upload/formula/608dac33274ccc2ee2cd75279bb5b1f5.png)
___________ (填含
、
的表达式)。
(3)已知:
。查阅文献资料得部分化学键的键能如表所示:
①合成氨反应
的活化能
,则氨分解反应
的活化能![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82663d867c747a52a6771e39e0b8f080.png)
___________
。
②
完全燃烧生成
和水蒸气时放出___________ kJ的热量;又已知
,则氨催化氧化的热化学方程式为___________ 。
(4)研究氮氧化物与大气中悬浮的海盐粒子的相互作用时,涉及反应:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/849feee6ec96ebae1cf682cbbda86626.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8aabd845cd4e7933402ac197183d100.png)
则反应
的![](https://staticzujuan.xkw.com/quesimg/Upload/formula/131135ae2807c734c1398f24708b2093.png)
___________ (用含a、b的表达式表示)。
(1)甲烷是一种高效清洁的新能源,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6bb4d412b0eea233b21c1fc58619ec0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11652e5f307ba82cce108d7c3b1265e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/521981899ff2eb449d1f8f58a6217903.png)
(2)已知:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7249101cd09bc2d1370be4926ee787c8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6fbb5d519f981a09188dc18a765e8c43.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e029cc1f7d07eeb136bd3946a7eb23e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a431a90e8af9feab789a85970097e376.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e3396e9e066adc1d6e03779938058a9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32410867843f1a7ef11410da8f3f8dab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6fe066fa1485fdf3efca5d7ad24a513a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a95d800b889e9e22aa00ec16b7f0a794.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b994a3d0126e44d032969365e6ebc25.png)
则
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27d3d85459fd9f18216c493e244e9d77.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6fbb5d519f981a09188dc18a765e8c43.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e3396e9e066adc1d6e03779938058a9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/608dac33274ccc2ee2cd75279bb5b1f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e029cc1f7d07eeb136bd3946a7eb23e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32410867843f1a7ef11410da8f3f8dab.png)
(3)已知:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70622e8f6b3ce9c76323f1f3dee38589.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d34ece7a57d5ef5c79d0684e49a634c0.png)
化学键 | H—H | ![]() | N—H |
![]() | 436 | 946 | 391 |
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bcf7916fff4d192814abef8580e69a3e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/743b1221b984378e29ac3184dcae1592.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/217cf145b7895e9a74b99ce4429b3f37.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82663d867c747a52a6771e39e0b8f080.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4b2a6bc4b5ef80a57a78c144749392c.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c37122e803ecd4522b71a7f4b51f4403.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d4092baf09c01da010acdcd50eefa09.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00954556ce8025de192e8769d6a55195.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64a1d68c2c1c9a4ca6c6446b726b4da2.png)
(4)研究氮氧化物与大气中悬浮的海盐粒子的相互作用时,涉及反应:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/408ea7f13861b5f40931fc32e7d6f15e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/849feee6ec96ebae1cf682cbbda86626.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/74819dd2b324cfd9a190d381eade6d36.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8aabd845cd4e7933402ac197183d100.png)
则反应
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3eb4483f45b5c842c908aaa4150741bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/131135ae2807c734c1398f24708b2093.png)
您最近一年使用:0次
2023-11-13更新
|
212次组卷
|
2卷引用:福建省泉州市2023-2024学年高二上学期期中考试化学试题
名校
解题方法
6 . 完成下列计算:
(1)已知工业上制取硫酸需要发生以下反应
Ⅰ.
;Ⅱ.
;Ⅲ.![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9aa74fdbbb2563bb2cff257d891cfaa.png)
①假设在生产中所有反应完全进行,则每生产1.00吨98%的浓硫酸需要![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f8dd3411d4346af2ee9b80b682dd5fa.png)
______ 吨。(保留2位小数)
②实际生产中可能会有损耗(即存在反应物没有发生反应),假设反应Ⅰ中
损耗率为20%,反应Ⅱ中
损耗率为10%,则实际生产1吨98%浓硫酸需要![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f8dd3411d4346af2ee9b80b682dd5fa.png)
______ 吨。(保留2位小数)
(2)取
固体,加热一段时间后,剩余固体5.84g。该剩余固体与足量的浓盐酸在加热条件下充分反应生成氯气,产物中所有Mn元素均转化为
。
①
分解生成氧气的物质的量![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f81934921825498c25d54f5029b9c72.png)
______ mol
②
分解的百分率为______ %;
③第二步反应中生成氯气的物质的量![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c767b730a659fc7e863cd47c1e34c74.png)
______ mol
(1)已知工业上制取硫酸需要发生以下反应
Ⅰ.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f037e8a14b68321feecd4b2449794db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dcb4f7d3632ab773624f4d82457a3a36.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9aa74fdbbb2563bb2cff257d891cfaa.png)
①假设在生产中所有反应完全进行,则每生产1.00吨98%的浓硫酸需要
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f8dd3411d4346af2ee9b80b682dd5fa.png)
②实际生产中可能会有损耗(即存在反应物没有发生反应),假设反应Ⅰ中
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f8dd3411d4346af2ee9b80b682dd5fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3cd6200aa9357b208a994c93c210ff60.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f8dd3411d4346af2ee9b80b682dd5fa.png)
(2)取
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9c1a31d62343f09d3e19977e51100c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9028a8c90efe91bbfac33fb674352b8c.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a63afc18472bb4f4d6388cf207da8b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f81934921825498c25d54f5029b9c72.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a63afc18472bb4f4d6388cf207da8b4.png)
③第二步反应中生成氯气的物质的量
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c767b730a659fc7e863cd47c1e34c74.png)
您最近一年使用:0次
2023-11-06更新
|
180次组卷
|
2卷引用:11-2023新东方高二上期中考化学11
名校
解题方法
7 . 将等物质的量的A、B混合于2升的密闭容器中,发生下列反应:3A(g)+B(g)=xC(g)+2D(g),经2min后测得D的浓度为0.5mol•L-1,c(A):c(B)=3:5,以C表示的平均反应速率v(C)=0.25mol•L-1•min-1。求(要求写出计算过程):
(1)v(B)=________ 。
(2)x=________ 。
(3)2min时A的物质的量浓度为_________ 。
(1)v(B)=
(2)x=
(3)2min时A的物质的量浓度为
您最近一年使用:0次
名校
8 . 回答下列问题:
金刚石和石墨均为碳的同素异形体,它们在氧气不足时燃烧生成一氧化碳,充分燃烧时生成二氧化碳,反应中放出的热量如图所示。
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/1/6e3ac6d8-7cb1-48b4-8b92-c33b39a2aae2.png?resizew=273)
(1)在通常状况下,金刚石和石墨中___________ (填“金刚石”或“石墨”更稳定,石墨的标准燃烧热
为___________ 。
(2)
石墨在一定量空气中燃烧,生成气体
,该过程放出的热量为___________ 。
(3)已知:
、
分子中化学键的键能分别是
、
。
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e534b64cdeab6bf80a05a8f11e867912.png)
分子中化学键的键能为___________
。
(4)综合上述有关信息,请写出
与
反应的热化学方程式:___________ 。
(5)根据盖斯定律计算
已知下列反应在
时的反应焓变:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a643d3d34382b7dc978ed800e32b2b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f296d2d286c690216e156a290c3560e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61a2aa239ac2a7454ac94bd664ea6309.png)
计算反应
在
时的焓变___________ 。
金刚石和石墨均为碳的同素异形体,它们在氧气不足时燃烧生成一氧化碳,充分燃烧时生成二氧化碳,反应中放出的热量如图所示。
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/1/6e3ac6d8-7cb1-48b4-8b92-c33b39a2aae2.png?resizew=273)
(1)在通常状况下,金刚石和石墨中
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22e1324e1e9318481b6e7264c8595804.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db4f3700cef2ca79e4ce0ceaf1cc0522.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c0f2e21fa44389ecc5ae2f3c4151cf0.png)
(3)已知:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/689cceefc5aed24568b73c0a6910c539.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7fa4e407156124daed6d1d94dbb26e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b82e885a81b8d8d91370ba6c58eca2c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fd001a7912a3736cc784bc465eae461.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e534b64cdeab6bf80a05a8f11e867912.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9110e80d125190c4b5bed606e1fc2220.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24cde03068deb44bd00e929884761b9d.png)
(4)综合上述有关信息,请写出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5a122e25cf4eb9f03ffe5ec823bfc31.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9110e80d125190c4b5bed606e1fc2220.png)
(5)根据盖斯定律计算
已知下列反应在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f78d7b0f8cac5b27ca1869147f7ca3de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a643d3d34382b7dc978ed800e32b2b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f296d2d286c690216e156a290c3560e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61a2aa239ac2a7454ac94bd664ea6309.png)
计算反应
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bff7f1f948e250c573ddde3170d602b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8b7217c39e7642c339fa71418eaed03.png)
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9 . 现有含HCl和
的混合溶液50g,向该溶液中逐滴加入溶质质量分数为10%的NaOH溶液,生成沉淀的质量与加入NaOH溶液的质量关系如图:
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/13/7718fc3c-a826-4ab7-8bec-db977f0e769d.png?resizew=307)
(1)当加入
溶液质量为ag时,溶液中的溶质有___________ (写出化学式);
(2)NaOH中Na元素的质量分数___________ (写出计算式);
(3)求混合溶液中
的质量分数___________ (写出计算过程);
(4)求恰好完全反应时,消耗NaOH溶液的总质量___________ (写出计算过程)。
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07d05cee2402360de2e5becf2e06a635.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/13/7718fc3c-a826-4ab7-8bec-db977f0e769d.png?resizew=307)
(1)当加入
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce93086f0133444d40743d654cba1c55.png)
(2)NaOH中Na元素的质量分数
(3)求混合溶液中
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07d05cee2402360de2e5becf2e06a635.png)
(4)求恰好完全反应时,消耗NaOH溶液的总质量
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2023-10-11更新
|
161次组卷
|
3卷引用:12-2023新东方高二上期中考化学12
12-2023新东方高二上期中考化学12北京市首都师范大学附属中学2023-2024学年高一上学期10月月考化学试题(已下线)【精品卷】3.2.2 物质的量在化学方程式计算中的应用课堂例题-人教版2023-2024学年必修第一册
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解题方法
10 . 取CaCl2和CaCO3的混合物12.5g于烧杯中,向其中滴加一定溶质质量分数的稀盐酸,请加稀盐酸的质量与产生气体质量的关系如图所示。求:
(1)混合物CaCO3中的质量为___________ ;
(2)稀盐酸中的溶质质量分数为___________ ;
(3)恰好完全反应时,所得不饱和溶液中溶质的质量分数为___________ ?(写出计算过程,计算结果精确到0.1%)
(1)混合物CaCO3中的质量为
(2)稀盐酸中的溶质质量分数为
(3)恰好完全反应时,所得不饱和溶液中溶质的质量分数为
![](https://img.xkw.com/dksih/QBM/editorImg/2023/10/8/c26c2782-6f56-4e95-bc4e-1d0bdc1bf80f.png?resizew=215)
您最近一年使用:0次