Gypsum is hydrated calcium sulfat,CaSO4·xH2O.A residue of 5.65g of anhydrous calcium sulfate is obtained by heating 7.15g gypsum.Determine the empirical formula of gypsum不用翻译……尤其是拿翻译软件翻译的……这个太。咳咳要

来源：学生作业帮助网 编辑：作业帮 时间：2024/04/28 08:05:27

Gypsum is hydrated calcium sulfat,CaSO4·xH2O.A residue of 5.65g of anhydrous calcium sulfate is obtained by heating 7.15g gypsum.Determine the empirical formula of gypsum不用翻译……尤其是拿翻译软件翻译的……这个太。咳咳要
Gypsum is hydrated calcium sulfat,CaSO4·xH2O.A residue of 5.65g of anhydrous calcium sulfate is obtained by heating 7.15g gypsum.Determine the empirical formula of gypsum
不用翻译……
尤其是拿翻译软件翻译的……这个太。咳咳
要得是怎么写这个题~

Gypsum is hydrated calcium sulfat,CaSO4·xH2O.A residue of 5.65g of anhydrous calcium sulfate is obtained by heating 7.15g gypsum.Determine the empirical formula of gypsum不用翻译……尤其是拿翻译软件翻译的……这个太。咳咳要
write out the equation first,assume that the number of water is x.
CaSO4.xH2O(136+18x)=CaSO4(136)+xH2O(18x)
无水硫酸钙和x水和硫酸钙的差量为7.15-5.65=1.50g,所以水的质量就是1.5g
列方程
136/5.65=18x/5.0
解得x=2.0
the expirical formula of gypsum is CaSO4.2H2O

翻译:
石膏是水合的钙sulfat，硫酸钙·xH2O. 无水硫酸钙5.65g残
滓通过加热7.15g石膏获得。 确定石膏实验式

加热7.15gGypsum（石膏）可一得到5.65gcalcium sulfate （硫酸钙）
CaSO4·xH2O=CaSO4+xH2O
5.65g divided by 136g/mol equals to 0.042mol
7.15g divided by 0.042mol equals to 172.1 g/mol
172.1g/mol minus 136g...

全部展开

加热7.15gGypsum（石膏）可一得到5.65gcalcium sulfate （硫酸钙）
CaSO4·xH2O=CaSO4+xH2O
5.65g divided by 136g/mol equals to 0.042mol
7.15g divided by 0.042mol equals to 172.1 g/mol
172.1g/mol minus 136g/mol equals to 36.1 g/mol
36.1g/mol divided by 18g/mol equals to 2
sothe empirical formula of gypsum is CaSO4·2H2O
看英文其实和看华文没多大区别。

收起

看不懂

Gypsum is hydrated calcium sulfat,CaSO4·xH2O.A residue of 5.65g of anhydrous calcium sulfate is obtained by heating 7.15g gypsum.Determine the empirical formula of gypsum不用翻译……尤其是拿翻译软件翻译的……这个太。咳咳要 英语翻译A correlation of these structural data with cellular transfection efficiencies reveals that the highest transfection efficiency is obtained with those amphiphiles that are easily hydrated,form fluid aggregates,and undergo a transition to 英语翻译The 1 story-building roof is comprised of layered vinyl/rubber roofing material with no ballast above 3-4 inches of “iso-foam” type insulation above gypsum board decking.The 1 story-building roof is comprised of layered vinyl/rubber r 装修 材料 类的英译中2.Zinc channel mounted 100mmthk partition c/w double layer gypsum board on each side,drywall plaster at joints in bare finishes3.1200 X 600 X 50mmthk density of 40kg/m3 rockwool insulation within partition4.a) W10' x Ht8' teflon和outcrop和 gypsum分别是什么意思?词性和例句提供 Gypsum board tiles 2 x 2 with foil and with out foil taped 原句是这样的：I am looking for PVC Gypsum board,aluminum Foil For back side and 4 taped side 英语翻译About false ceiling & boards ,we need first ( meanly ) the gypsum with vinyl & the mineral foam ,7 mm .With its accessories . 英语翻译The uniaxial compressive strength of compounded phosphorus gypsum after 28 d of curingperiod was tested to be more than 1Mpa．Phosphorus gypsum can be used as materials for the backfill of stope．By comparison andnumerical simulation,cu What is L/C? The air is c( ) what is hepatitis c? a.am,is b.is,is c.are,is 我有套兰芝的化妆品英文看不懂?for all skin types power essential skin_ex snow crystal clear & hydrated skin with snow water science for dry combination skin type balancing emulsion 2_ex for all skin types water bank essence_ex profession 是洗面奶里的最开始的原料..中文名字应该叫什么啊,Hydrated Coco fat Synthesis of DMAPA:* Acrylonitril (ACN) * Dimethyl amine (DMA) Synthesis of SMCA:* Monochloroacetic acid (MCAA) * Caustic Soda 英语翻译Product DescriptionThis rich moisturizing cream containing Dead Sea minerals & plant extracts absorbs quickly,restoring the skin’s natural moisture levels,leaving it soft,smooth and re-hydrated,giving the skin a more youthful-like appea what is that?It is C.为什么是 It is? L.C.M is 最小公倍数