ShowPREPARATION OF (POTASSIUM) ALUM - Home - Wilkes …:制备(钾)明矾-家居-威尔克斯…

威尔克斯  时间:2021-04-28  阅读:()

PREPARATION OF(POTASSIUM)ALUM

Name_____________________________Section______

Week One:

Form of aluminum used:________ Mass of aluminum used:_____________

Moles of 4M KOH used:_________________________

The balanced equation for the reaction of potassium hydroxide and aluminum:

Moles of 6M H2SO4 used:________________________

The balanced equation(s)for the reaction of sulfuric acid:

The balanced equation(s)for the formation of alum from its components:

Mass of alum crystals obtained:______________________________

Theoretical yield of alum:___________ %yield of alum:______________[Show calculations]

Week Two:

Observed melting point (range)of“standard”alum:_______Literature MP of alum:_________Observed melting point (range)of synthesized alum:____________Corrected MP:_________Comment on any corrections that were needed in obtaining the M.P.of your alum and on theagreement between the MP of your sample and the expected MP.

DESCRIBE ANY TESTS PERFORMED ON YOUR ALUM ON THIS SHEET.BE SURE TOINCLUDE ALL CHEMICAL REACTIONS.

Post Lab discussion Questions:

1. How did this lab conform to the 12 Green Principles of Chemistry?Which Principles?

2. W„ hat im‟provements could be made to this lab?Any improvements to make this labgreener ?

3. Were there any parts to this lab that violated the 12 Principles? If so,which ones and why?

4. List some of the concerns associated with Aluminum production from raw ore.

5. What are the advantages to recycling aluminum as compared with Al production via the ore?

6. If recycling one aluminum can saves the energy equivalent of 1 cup of gasoline(8 oz),howmuch energy could you save in a year if you recycled two aluminum cans per day?How manygallons of gas is this?How much would that gas cost?

LayerStack$10.04/月(可选中国香港、日本、新加坡和洛杉矶)高性能AMD EPYC (霄龙)云服务器,

LayerStack(成立于2017年),当前正在9折促销旗下的云服务器,LayerStack的云服务器采用第 3 代 AMD EPYC™ (霄龙) 处理器,DDR4内存和企业级 PCIe Gen 4 NVMe SSD。数据中心可选中国香港、日本、新加坡和洛杉矶!其中中国香港、日本和新加坡分为国际线路和CN2线路,如果选择CN2线路,价格每月要+3.2美元,付款支持paypal,支付宝,信用卡等!...

Hostodo:4款便宜美国vps七折优惠低至$13/年;NVMe阵列1Gbps带宽,免费DirectAdmin授权

hostodo怎么样?快到了7月4日美国独立日,hostodo现在推出了VPS大促销活动,提供4款Hostodo美国独立日活动便宜VPS,相当于7折,低至$13/年,续费同价。Hostodo美国独立日活动结束时间不定,活动机售完即止。Hostodo商家支持加密数字货币、信用卡、PayPal、支付宝、银联等付款。Hostodo美国独立日活动VPS基于KVM虚拟,NVMe阵列,1Gbps带宽,自带一个...

HostHatch(15美元)大硬盘VPS,香港NVMe,美国、英国、荷兰、印度、挪威、澳大利亚

HostHatch在当地时间7月30日发布了一系列的促销套餐,涉及亚洲和欧美的多个地区机房,最低年付15美元起,一次买2年还能免费升级双倍资源。商家成立于2011年,提供基于KVM架构的VPS主机,数据中心包括中国香港、美国、英国、荷兰、印度、挪威、澳大利亚等国家的十几个地区机房。官方网站:https://hosthatch.com/NVMe VPS(香港/悉尼)1 CPU core (12.5%...

威尔克斯为你推荐
重庆重庆盗版itunes支持ipad支持ipad支持ipad重庆宽带测速重庆市电信网速测试是哪个网站或ipwin10445端口windows server2008怎么开放4443端口itunes备份itunes备份是什么css3按钮如何在html添加一个搜索框和一个按钮ipad上不了网ipad连上家里的无线却不能上网
虚拟主机评测 apache虚拟主机 greengeeks 重庆服务器托管 windows主机 174.127.195.202 新世界电讯 100m免费空间 微信收钱 徐正曦 亚马逊香港官网 drupal安装 新睿云 云营销系统 国内域名 免费蓝钻 阿里云邮箱登陆 最新优惠 ipower nano 更多