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- Fluorite, a mineral of calcium, is a compound off the metal with fluorine. Analysis shows that a 43.35-g sample of fluorite contains 21.11 g of fluorine. Calculate the following: (a) Mass of calcium in the sample. g Ca (b) Mass fractions of calcium and fluorine in fluorite. Calculate to 3 significant figures. mass fraction Ca mass fraction F (c) Mass percents of calcium and fluorine in fluorite. Calculate to 3 significant figures. mass % Ca mass % FForeattt part of iTIS qtestfoni; tonsider FOHOWIHg Btetat: You need to make a stock solution of Ca( C2H3O2 )2 with a concentration of 6.50 M. You have a 850.0 mL volumetric flask available to make this stock solution in. You are then tasked with using this stock solution to prepare a sample for use in an experiment. The experimental sample should have a final volume of 15.0 mL and a concentration of 0.350 M Ca(C2H3O2)2. a) What is the molar mass of Ca(C2H3O2)2? b) How many moles of the solute would be needed to create the stock solution using the volumetric flask available? c) How many grams of the solute should be added to the volumetric flask to create the stock solution? d) What volume, in mL, of the stock solution should be used to prepare the experimental solution through dilution? US 目 MA sample of magnetite (impure Fe3O4) weighing 0.4500 g is fused with oxidizing flux and the ferric compound formed is eventually precipitated as ferric hydroxide and ignited to ferric oxide (Fe2O3MM 159.70 g/mol) which weighs 0.4890 g. Calculate % Fe. At. mass Fe 55.85 O 16.00
- O Launch Meeting - Zoom O Launch Meeting - Zoom od212ou%3D2591470&isprv &drc3D1&qi=24592388cfql%=D08drnb- ttempt 1 A honeycomb-shape casing of the metals platinum (Pt), rhodium (Rh), and palladium (Pd) in catalytic converters of automobiles cause more reactions to take place that produce less harmful gases without being affected by the reaction. These metals are catalysts because: They cause the reactions without being affected. They are formed into a honeycomb shape. They are metals. They help produce less harmful gasses.MasteringChemistry: H x O The 'Green Vortex' Is Se x IClicker: Student Respo * IClicker Student Add C x gnmentProblemiD=171599883 %23 B Readi <1 of 18 I Review | Constants | Periodc Table What is the formula for this compound? Express your answer as a chemical formula, • View Available Hint(s) Hint 1. How to approach the problem Since this compound is neutral, the total charge of the compound must equal zero. Choose the formula subscripts such that the total charge for aluminum plus the total charge for oxygen is equal to zero. Hint 2. Detemine the charge on the aluminum ion By looking at the periodic table, predict the charge of the aluminum jon. Express the charge numerically (e.g., 1+). v View Available Hint(s) Hint 1. lon formation An ion is an atom that has gained or lost electrons and therefore carries a charge Atoms form ions to achieve the same number of electrons as the nearest noble gas (rare gas) Submit Previous Answers Request Answer Show all 213 PM 70°F 9/25/20210 Cals) + NAC lag) – O White the balanced molecular chemical equation for the reachion f Solid lithium with aqueo us Chromium (111) acetat: 4 no iea chun occurs, write UR. Idaite a balanced molecular Chemical equahion for the Solia Sodium with aqueous Zinc perchlorite . 7 no geaction ccuns,
- ne Wrong (L) - X Gcalculator-Google Search nt/d/1PrqdNDx-hBYyzKo-xfiM9-Jlq7EAaWe3GBt_t3U3jDo/edit n Calculator A Land of Permane... Last edit was seconds ago BIUA E EX | 1 . | 5. How many moles of iron would have to react to produce 3.5 moles of ron (III) oxide? 3.5 moles Fe.O, 2 moles Fe O. 4 moles Feic Chapter 5: EOC * OW2| (Indine teeching and leX i west.cengagenow.com/ilrn/takı-Assignrment/takevalentaclvity.do7incator aynment fake pt Balance the following word equatiou and rewrite it using cheumical fornulas. silver nitrate(aq) + sodium chloride(ag) + sodium nitrate(ag) + silver chloride(s) (Use the lowest possible cocfficients. Be sure to specify states such as (ag) or (s). If a box is not needed, leave it blank.) Write the balanced equation in net ionic form. Submit Answer Try Another Version 10 item attempts remaining O Type here to searchPlease ansuer the followiveg themocheawishry questian. Starchiometny or (and Vimitinal excess reagont calculations midht be mecessany. Please shew all wark and explain essay. Steps in details a) Haw much energu is produced when 93.5 Oxygan reacts with 13.2q hydrapen in the followng reaction? of grams 2H2 + Oz Đ2H2O Att= -572 KJ b) How many grans of magmesiaom sulfate woud be praduced fram the fallowine reaction if 176g of energy is absorbed the reactian: by Alz (sou)o f 3Mq Iz+2AI G+3Mg(304) AM= +722 KJ
- barkamishen seslb to doing Bittetsbau nA sideT oibore peivab ot etsimodo it as lendas suchombre or to agninnigod adr oldmseen polls anoitoleaimora ni baya Solovi immediabudinng enoitonen Isolmarlo lo coqyt Istoresbout wot ybuta lliw s Croborecho ofnino2s1 ayow ribi of 5) Analysis of 1.618 g of a hydrate salt gave the following information. Iliw Pb: 0.884 g, C: 0.205 g, H: 0.026 g, O: 0.273 g, and water: 0.230 g.o Inters What is the formula of the hydrate. sob a ogrobimu snocheoid bas in botser asce ed with asmolo s nad oson inmoasigaib to savi Inomalo srit 'il bogoo oinai is gaininos nouutos of babbe smogod bis noi si di autosis syneriozs Irw ticodulos ni noi ni nobnice to bilo 25ml produced flash and poppe carolionoriconic lieth noitonen inomossigen sigme yd elas Jabot ovi HA obrtw scale 6 10 enolonias pozemol adi ni ailuas, noitufos at devan gods got abou odregos bazum o obnoldo miuiboa bar otain rovlie to anoituloa asrl W SiT moironen insmoelor siduob a lo loss of an emot…A mixture has thre components. The percentage of sand was determined to be 26.04%, the percentage of benzoic acid was determied to be 25.92%, and the percentage of salt was determined to be 35.97%. Calculate the total precent recovery.Endow Help eq req Ereg Important values if needed... | b... q eq MAY 11 Submit Answer prod01-cnow-owl.cengagenow.com S 5 According to the following reaction, how many moles of bromine monochloride will be formed upon the complete reaction of 0.915 moles bromine with excess chlorine gas? Br2(g) + Cl₂ (g) → 2BrCI(g) mol bromine monochloride Retry Entire Group ty A 6 [Review Topics] [References] Use the References to access important values if needed for this question. Module 2 | OWLv2 MacBook Pro & 7 8 more group attempts remaining GA * CO 8 A :)) O 9 COWLV2 | Online teaching and learning resource from C.... Previous 00 Email Instructor Thu May 11 Next Save and Exit 0 HARB 0 + C ?