Help with chemistry problem? Yahoo Answers

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help with chemistry problem? Yahoo Answers

Feb 13,2007 Help with chemistry problem? Yahoo Answers#0183;answer is d in every chemical reaction,the total mass of the reactants MUST equal the total mass of the products - this is called the Law of Conservation of Mass.Since your problem says there is no copper or oxygen left over,simply add the copper and oxygen mass together to get the total mass of the reactants and this must equal the mass of chemistry problems,help? Yahoo AnswersAug 20,2010 Help with chemistry problem? Yahoo Answers#0183;Here are the problems 1.An auto mechanic spills 88 mL of 2.6 M H2SO4 solution from a rebuilt auto battery.How many milliliters of 1.6 M NaHCO3 must be poured on the spill to react completely with the sulfuric acid? 2.One of the first steps in the enrichment of uranium for use in nuclear power plants involves a displacement reaction between UO2 and aqueous HF.chemical equationSome results are removed in response to a notice of local law requirement.For more information,please see here.Previous123456NextChemistry problem help? Yahoo AnswersNov 11,2008 Help with chemistry problem? Yahoo Answers#0183;Chemistry problem help? At a particular temperature,12.0 mol of SO3 is placed into a 3.0 L rigid container,and the SO3 dissociates by the reaction given below.2 SO3(g) 2 SO2(g) + O2(g)

Some results are removed in response to a notice of local law requirement.For more information,please see here.Please help with a Chemistry problem.? Yahoo Answers

Mar 20,2010 Help with chemistry problem? Yahoo Answers#0183;Please help with a Chemistry problem.? A solution is prepared by mixing 0.11 L of 0.14 M sodium chloride with 0.21 L of a 0.19 M MgCl2 solution.What volume of a 0.22 M silver nitrate solution is required to precipitate all the Cl^ - ion in the solution as AgCl?Please help with a Chemistry problem.? Yahoo Answers Help with chemistry problem? Yahoo Answers#0183;1.Ammonia reacts with oxygen according to the equation 4NH3(g)+5O2(g)4NO(g)+6H2O(g),Hrxn=906 kJ Calculate the heat (in kJ) associated with the complete reaction of 155 g of NH3.Express the heat in kilojoules to three significant figures.2.What mass of butane in grams is necessary to produce 1.5 Help with chemistry problem? Yahoo Answers#215;103 kJ of heat? What mass of CO2 is

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May 06,2010 Help with chemistry problem? Yahoo Answers#0183;Mastering Chemistry prefers 517m/s.Use this same method to solve Cl2.hope this helps! ps.this problem is worked out for N2 at 25 degree C in Sample exercise 10.13 on page 422 in the 13th edition.I followed those steps and rewrote it down hear with our element instead.PLEASE HELP!!!CHEMISTRY PROBLEMS? Yahoo AnswersAug 08,2009 Help with chemistry problem? Yahoo Answers#0183;I have no clue how to solve these problems.Please help me! 1) Use the free energies of formation given below to calculate the equilibrium constant (K) for the following reaction at 298K.2H2S+3O2=2SO2+2H2O.G Help with chemistry problem? Yahoo Answers#176;f (kJ/mol) H2S -33.4,O2:0,SO2 -300.1,H2O -228.6 2) Choose the statement below that is TRUE A)K Help with chemistry problem? Yahoo Answerslt;1,G Help with chemistry problem? Yahoo Answers#176;rxn is negative B) G Help with chemistry problem? Yahoo Answers#176;rxn = 0 at equilibrium C) Grxn = 0 at Need help with chemistry problem!!? Yahoo AnswersSep 29,2019 Help with chemistry problem? Yahoo Answers#0183;Hydrogen cyanide,HCN,is a poisonous gas.The lethal dose is approximately 320 mg mgHCN per kilogram of air when inhaled.A) Calculate the amount of HCN that gives the lethal dose in a small laboratory room measuring 14 Help with chemistry problem? Yahoo Answers#215; 17 Help with chemistry problem? Yahoo Answers#215; 8.0ft.The density of air at 26C is 0.00118g/cm3.B) If the HCN is formed by reaction of NaCN with an acid such as H2SO4,what mass of NaCN gives the lethal

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Sep 29,2019 Help with chemistry problem? Yahoo Answers#0183;Hydrogen cyanide,HCN,is a poisonous gas.The lethal dose is approximately 320 mg mgHCN per kilogram of air when inhaled.A) Calculate the amount of HCN that gives the lethal dose in a small laboratory room measuring 14 Help with chemistry problem? Yahoo Answers#215; 17 Help with chemistry problem? Yahoo Answers#215; 8.0ft.The density of air at 26C is 0.00118g/cm3.B) If the HCN is formed by reaction of NaCN with an acid such as H2SO4,what mass of NaCN gives the lethalNeed help with a chemistry problem? Yahoo AnswersOct 11,2016 Help with chemistry problem? Yahoo Answers#0183;You have 0.8121 g of an unknown monoprotic acid,HA,which reacts with NaOH according to the balanced equation HA + NaOH NaA + H2O If 42.16 mL of 0.1006 M NaOH is required to titrate the acid to the equivalence point,what is the molar mass of the acid?Need help with a chemistry problem? Yahoo AnswersOct 11,2016 Help with chemistry problem? Yahoo Answers#0183;Calculate moles of acid,HA which will be equal to moles of NaOH at equivalence point (0.04216 L)(0.1006 mol/L) = 0.004241 moles HA.molar mass HA =

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Dec 02,2010 Help with chemistry problem? Yahoo Answers#0183;Without consulting the table of acid-dissociation constants,match the following acids to the given K_a1 values.Ka1= 1.7x10^-7,Ka1= 1.5x10^2,Ka1= very large H2S,H2SO4,H2SO3Help with chemistry problem? Yahoo AnswersSep 16,2008 Help with chemistry problem? Yahoo Answers#0183;Anonymous asked in Science Mathematics Chemistry 1 decade ago Help with chemistry problem? Separate samples of a solution of an unknown salt are treated with dilute solutions of HBr,H2SO4,and NaOH.Help with chemistry problem? Yahoo AnswersJan 15,2013 Help with chemistry problem? Yahoo Answers#0183;Help with chemistry problem? Suppose that a certain fortunate person has a net worth of $79.0 billion (7.90x10^10).If her stock has a good year and gains $3.20 billion (3.20x10^9) in value,what is her new net worth?

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Oct 27,2020 Help with chemistry problem? Yahoo Answers#0183;Help with a chemistry problem? How many grams of magnesium would the reaction produce when 50.00g of silver react and the reaction has 70.00% yield? 2Ag(s) +Help with Chemistry Lab problem? Yahoo AnswersSep 01,2014 Help with chemistry problem? Yahoo Answers#0183;Answer Silver 10.5.Rhodium 12.4.Platinum 21.45.As for how to test it,just drop it in water and measure the displacement.Pretty simple..Help chemistry problem? Yahoo AnswersOct 17,2016chemistry problem help!!? Yahoo AnswersApr 26,2015See more resultschemistry problems,help? Yahoo AnswersAug 20,2010 Help with chemistry problem? Yahoo Answers#0183;Here are the problems 1.An auto mechanic spills 88 mL of 2.6 M H2SO4 solution from a rebuilt auto battery.How many milliliters of 1.6 M NaHCO3 must be poured on the spill to react completely with the sulfuric acid? 2.One of the first steps in the enrichment of uranium for use in nuclear power plants involves a displacement reaction between UO2 and aqueous HF.chemical equation

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Help with chemistry problem? Yahoo Answers#0183;Chemistry help? 1.What is the enthalpy for reaction 1 reversed? reaction 1 reversed CO2CO + 12O2 Get answers by asking now.Ask question + 100.Join Yahoo Answers and get 100 points today.Join.Trending questions. Difficult chemistry problem,please provide assitance.?Confusing Chemistry Problem,help? Yahoo AnswersOct 19,2020 Help with chemistry problem? Yahoo Answers#0183;Confusing Chemistry Problem,help? A gas is compressed from 75.9 L to 3.5 L at 0.50 atmospheres? In addition,a total of 4200 J of heat are gained from warmer surroundings.Chemistry problems/help? Yahoo AnswersApr 14,2013Please help with a Chemistry problem.? Yahoo AnswersMar 19,2010See more resultsHelp!!! chemistry problem? Yahoo AnswersDec 02,2010 Help with chemistry problem? Yahoo Answers#0183;Without consulting the table of acid-dissociation constants,match the following acids to the given K_a1 values.Ka1= 1.7x10^-7,Ka1= 1.5x10^2,Ka1= very large H2S,H2SO4,H2SO3

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Oct 02,2010 Help with chemistry problem? Yahoo Answers#0183;Chemistry problem inside,can you please help? Calculate the mass of each product formed when 205 g of silver sulfide reacts with excess hydrochloric acid.Ag2S(s) + HCl(aq) AgCl(s) + H2S(g) [unbalanced]Chemistry problem help? Yahoo AnswersNov 11,2008 Help with chemistry problem? Yahoo Answers#0183;Chemistry problem help? At a particular temperature,12.0 mol of SO3 is placed into a 3.0 L rigid container,and the SO3 dissociates by the reaction given below.2 SO3(g) 2 SO2(g) + O2(g)Chemistry Problem Help? Yahoo AnswersSep 18,2020 Help with chemistry problem? Yahoo Answers#0183;Consider the following chemical reaction A + 5B 3C + 4D a.The products of the reaction are carbon dioxide (C) and water (D).The molar mass of A is the same as that of carbon dioxide.B is a diatomic molecule.Identify B and justify your response with evidence.Include why it cannot be other possible substances.b.Calculate the mass of carbon dioxide produced if 750.0 g of compound

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Jan 30,2012 Help with chemistry problem? Yahoo Answers#0183;Chemistry Problem Help? I am having trouble with the following problem Analysis of a white solid produced in a reaction between chlorine and phosphorus showed that it contained 77.44% chlorine,and 22.56% Phosphorus.Chemistry Problem Help? Yahoo AnswersJan 30,2012 Help with chemistry problem? Yahoo Answers#0183;Chemistry Problem Help? I am having trouble with the following problem Analysis of a white solid produced in a reaction between chlorine and phosphorus showed that it contained 77.44% chlorine,and 22.56% Phosphorus.Can someone please help me with this chemistry problem Jun 08,2013 Help with chemistry problem? Yahoo Answers#0183;The bromination of acetone is acid-catalyzed CH3COCH3 + Br2 + H+ CH3COCH2Br + H+ + Br- The rate of disappearance of bromine was measured for several different concentrations of acetone,bromine,and H+ ions at a certain temperature [CH3COCH3] [Br2] [H+] Rate of disappearance of Br2 in M/sec [0.30] [0.050] [0.050] [5.7 x 10-5] [0.30] [0.10] [0.050] [5.7 x 10-5] [0.30] [0.050] [0.10]

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Nov 22,2011 Help with chemistry problem? Yahoo Answers#0183;When backpacking in the wilderness,hikers often boil water to sterilize it for drinking.Suppose that you are planning a backpacking trip and will need to boil 37L of water for your group.What volume of fuel should you bring? Assume each of the following the fuel has an average formula of C7H16 15% of the heat generated from combustion goes to heat the water (the rest is lost to the 12345NextPlease Help! Chemistry problem? Yahoo AnswersMar 18,2016 Help with chemistry problem? Yahoo Answers#0183;Please Help! Chemistry problem? Urea (CH4N2O) is a common fertilizer that can be synthesized by the reaction of ammonia (NH3) with carbon dioxide as follows 2NH3(aq)+CO2(aq)CH4N2O(aq)+H2O(l) In an industrial synthesis of urea,a chemist combines 142.7 kg of ammonia with 211.4 kg of carbon dioxide and obtains 169.0 kg of urea.

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