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What are the values of the blanks? (1a, 1b, 1c, 2a, 2b, 2c)
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- How many mL of o.677m HBrias needed to camputely of Naz cOg? nectralize 0.8989 Nan co, +2 HBr-> Ha COz + 2 NaBr -7- 3 3(b) Calculate the quantity of lime and soda required for softening one million litre of thefollowing sample of water. If the purities of lime and soda are 80% and 85%respectively. The impurities are Silica = 75 mg/lit. MgCl2 = 19 mg/lit. MgSO4 = 30mg/lit. CaSO4 = 68 mg/lit. MgCO3 = 884 mg/lit. CaCO3 = 120 mg/lit.H1ll calculate the mass pezcentage salution containiny Naz so, in a of Na, 5O in lof 443, of water
- Compare combustion of Benzene and Xyler e in sufficient supply of air. Which one will produce more carbon rich sooty flame and why? Determine the mass of H»C2O4.H0 required to prepare 0.1N solution inb My Questi x Co. How to Ca X N NSU Login X PeriodicTa X M Action Re x 0 mySigTau XG 4.25 ml to X ( NBA FinalX G scientific X + enow.com/ilrn/takeAssignment/takeCovalentActivity.do?locator%3Dassignment-take [References] A 1:1 mixture by moles of nitrous oxide and oxygen is often used as a sedative in dentistry. If the total pressure of this mixture in a cylinder is 3.75 atm, what is the partial pressure of each gas? Partial pressure of nitrous oxide = atm Partial pressure of oxygen = atm Submit Answer Try Another Version 3 item attempts remaining Previous Next Email Instructor Save and Exit Cengage Learning | Cengage Technical SupportQ2// Describe the preparation of 250ml of 0.3 M NaHCO3? A.W. H=1 P=31 O=16 C=12 Na=23
- - Mass, & PPM S Add-ons Help Accessibility Last edit was4. BI U A Arial 12 Parts Per Million (ppm) 229i moles of of Sioin th bolution Whan are the gpm 3. A factory is duriping a1,250 kildgram sample of lak Hg(OH)2 is 299 ppm. is this the local lake, An investigation shows that of Ho OH) If the maximum safe level of 4. 35 years after the Chemobyy Nitride (U,N) af 12.55 ppm. If the sample UN, were in this sample? How many molecules of UN were in this sample? water has a concentration of Uranium a vieight of 2.25 kilograms, how many moles of omember tig1000 1 Liter 1000 wExpeniment and name Chemical formula Cobalt (11) nitzate Co(NOs)2 Buldatance Aane and dhemical farmula mm, q/mo! 182.95g lmol Fruihal volume , L Iniial concentrahion measure d, mal/L Number of mole's and massof mass Of solute 500ML 0.876 mollL 0 -438 mol Colw0z to Concentration after eventahom affer evapo 1.461 mal L Can you please explatn to calculate how the 180.19) cduo wsas arrived at ? Thanks assv21 Online te X Co. How to Calculate N NSU Login | North X bAer X S PeriodicTableofthe M Action Required: S X O mySigTau mow.com/ilm/takeAssignment/takeCovalentActivity.do?locator=Dassignment-take [References) N20 is a gas commonly used to help sedate patients in medicine and dentistry due to its mild anesthetic and analgesic properties; it is also nonflammable. If a cylinder of N20 is at 10.9 atm and has a volume of 4.00 L at 298 K, how many moles of N20 gas are present? moles The gas from the cylinder is emptied into a large balloon at 755 torr. What is the volume of the balloon at 298 K? Volume = Submit Answer Try Another Version 3 item attempts remaining pt pt pt 1 pt 1 pt 1 pt Previous Next nt Email Instructor Save and Exit Cengage Learning I Cengage Technical Support
- ion O 21 x 10-5 O 1.4 x 10-3 O 14 O 7.7 x 10-2 ion 10 A solution is made by dissolving 46.8 g of sucrose (M. wt = 342) in 117 g of water (M. Wt 18). The mole fraction of water is: ered d dut of Select one: O 0.04 on O 96% O 1.04 O 0.98 11 כ HBRO is more acidic than HCIO. r saved d out of Select one: Window True N False REDMI NOTE 8 PRO AI QUAD CAMERA ondescribe the procedure of 2.00 L of 0.120 M HClO4from the commercial reagent [71.0% HClO4(w/w), specificgravity1.67].gascous ammonia, NH3lA) at reacts 3)/A 3.83L Volume of SIP is bubbled through lo8.0mb Water and Completley to form. R. aummonium hydroxide, NH40H (ag) a) what is the mdar concentration ot the resulding NHOH(aa) solkubion. 16) Whal mass of NH4 OH is present in the loo: Ome Solution. How moles of NHq OH would be sprasera present many în 482 mL ofa solution of he the Same IConcentration.