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April 25, 2014

Search: Chem- Percent Yield

Number of results: 12,905

Chem- Percent Yield
When HgO is heated, it decomposes into elemental mercury and diatomic oxygen gas. If 42.9 g of Hg is obtained from 70.1 g of the mercuric oxide, what is the percent yield of the reaction?
Thursday, October 11, 2012 at 1:03am by Lara

chem
SiO2+6HF-----> H2SiF6+2H2O actual yield is 52.8 what is percent yield
Wednesday, February 1, 2012 at 7:55pm by Anonymous

Chemistry
1. The reaction CO+2H2-CH3OH was carried and it is found that only 332g of CH3Oh is actually produced when 407g CH3Oh was the expected yield. What is the Percent yield? 2. If 112g of CaO is reactied with an excess of NH4Cl and 64.0g of NH3 are produced, what is the percent ...
Wednesday, March 20, 2013 at 6:22pm by Nancy

Chemistry
I have this question and I am pretty sure on what to use to solve it but I am just stuck. The reaction of 8 g of hydrogen and 28 g of carbon monoxide gave 16 g of methanol. What was the theoretical yield if the percent yield was 50%? actual yield ________________ X 100% = ...
Friday, September 16, 2011 at 2:16pm by Justin

Chem
How are these values used to determine percent? actual yield is quantity of a product found to be formed in a chemical reaction and theoretical yield is the amount of product predicted theoretical yield is larger because in experiments reactions might not always go to ...
Sunday, July 18, 2010 at 5:25pm by Gregg

Chem problem- percent yield
Heating an ore of antimony (Sb2S3) in the presence of iron gives the element antimony and iron(II) sulfide. Sb2S3 (s) + 3Fe(s) 2Sb(s) + 3FeS(s) When 15.0 g Sb2S3 reacts with an excess of Fe, 9.84 g Sb is produced. What is the percent yield of this reaction?
Sunday, March 22, 2009 at 7:01pm by Stephanie

Chemistry Pretest
Fe can be prepared as 2 Al + Fe2O3 ----> 2 Fe + Al2O3. Suppose that 0.450 moles of Fe2O3 are reacted with an excess of Al. Suppose that 43.6 grams of Fe are obtained. What is the percent yield of Fe? a) 16.2% b) 60.7% c) 86.7% d) 43.4% Percent yield= actual yield of product...
Friday, September 28, 2012 at 7:15am by Sarah

chemistry
So I did an experiment at school in which we had to form 2.00 grams of precipitate by mixing 2 hydrated compounds. So for the products, obviously one of it is water, and the other 2 products are compounds, one of which, is insoluble. So when I measured the amount of ...
Sunday, September 15, 2013 at 12:43pm by K

chem
consider the following balance chemical equation: 2NH3(g)+3CuO(s)=N2(g)+3Cu(s)+3H2O(g) if 18.1grams of ammonia reacts with 90.4 grams of copper(II) oxide, which is the limitting reagent?? what is the theorectical yield of nitrogen gasd? if 8.52 g of N2 are formed, what is the...
Monday, November 15, 2010 at 5:49pm by julia-Drboob22

chem
consider the following balance chemical equation: 2NH3(g)+3CuO(s)=N2(g)+3Cu(s)+3H2O(g) if 18.1grams of ammonia reacts with 90.4 grams of copper(II) oxide, which is the limitting reagent?? what is the theorectical yield of nitrogen gasd? if 8.52 g of N2 are formed, what is the...
Monday, November 15, 2010 at 9:50pm by julia

chem
The burning of 18.0 g of carbon produces 55.0 g of carbon dioxide. What is the theoretical yield of CO2? Calculate the percent yield of CO2.
Sunday, June 1, 2008 at 8:44pm by Anonymous

chem/DrBob22
consider the following balance chemical equation: 2NH3(g)+3CuO(s)=N2(g)+3Cu(s)+3H2O(g) if 18.1grams of ammonia reacts with 90.4 grams of copper(II) oxide, which is the limitting reagent?? what is the theorectical yield of nitrogen gasd? if 8.52 g of N2 are formed, what is the...
Monday, November 15, 2010 at 6:23pm by julia

chemistry
1) a student used 3.50 g of salicylic acid. calculate theoretical yield 2) the actual yield (from experiment) was found to be 1.50 g less than the theoretic yield (mass), calculate the percent yield 3) t
Wednesday, July 18, 2012 at 6:27am by ama

AP Chem
2) For a theoretical yield of 19 g and actual yield of 11 g, calculate the percent yield for a chemical reaction. Answer in units of %. 11 g / 19 g times 100 = 57.89% in your 2 sigfig problem, you might be expected to round off to 58% ======================================... ...
Monday, October 28, 2013 at 9:20pm by Anonymous

CHEM
why should the maximum percent yield never be above 100%
Sunday, August 5, 2012 at 3:43am by amira

Chem. Percent Yield
Titanium, a strong, lightweight metal used in many applications, is prepared by the reaction of titanium(IV) chloride with molten magnesium metal. 3.45 x 10^7g of titanium(IV) chloride is reacted with 1.13 x 10^7g of magnesium, 7.91 x 10^6g of titanium metal are obtained. What...
Monday, February 28, 2011 at 12:22am by Toni Jones

chemistry
supposed the theoritical yield in a reaction is 68.8g, and the percent yield is 66.0%, what is the actual yield of product obtained?
Saturday, March 24, 2012 at 3:45pm by kims

Chem
Determine the percent yeild of: KCl3(s)--> KCl(s)+ O2(g) 2.14g of KCl3 produces 0.67 of O2 I get 123% when the correct answer is 80% My work: KCl3: mm = 122.45, n =0.017 Theoretical yield: .017mol * 32g/mol Pecent Yield: 0.67g/ 0.544g *100% = 123%
Wednesday, October 7, 2009 at 11:02pm by Sara

Chemistry I
iF THE THEORETICAL YIELD IF A REACTION IS 0.121G AND THE ACTUAL YIELD IS 0.112G WHAT IS THE PERCENT YIELD
Saturday, April 9, 2011 at 12:55pm by tammy

math
how do you calculate theoretical yield of something? I don't know where to find the formula You go to the balanced chemical equation, and look at the mole ratio between the reactants and products. The theoretical yield is the value calculated from stoichiometry of a reaction. ...
Wednesday, January 31, 2007 at 12:58pm by james

chemistry!!!Need helpp!!!
how do you find percent yield of a rxn, and how do you find mmol of something? percent yield = 100 * (actual yield/predicted yield) find the number of moles, and then conver it to milimeter. millimols = mols x 1000 OR mols = grams/molar mass OR millimols = milligrams/molar ...
Sunday, December 3, 2006 at 10:22pm by day

finance
the corner grocer has a 7-year, 6 percent annual coupon bond outstanding with a $1,000 par value. the bond has a yield to maturity of 5.5 percent. Which one of the following statements is correct if the market yield suddenly increases to 6.5 percent? The bond price will ...
Wednesday, March 5, 2014 at 7:39pm by carol

finance
the corner grocer has a 7-year, 6 percent annual coupon bond outstanding with a $1,000 par value. the bond has a yield to maturity of 5.5 percent. Which one of the following statements is correct if the market yield suddenly increases to 6.5 percent? The bond price will ...
Wednesday, March 5, 2014 at 8:33pm by carol

finance
The Corner Grocer has a 7-year, 6 percent annual coupon bond outstanding with a $1,000 par value. The bond has a yield to maturity of 5.5 percent. Which one of the following statements is correct if the market yield suddenly increases to 6.5 percent? The bond price will ...
Wednesday, March 5, 2014 at 9:08pm by geof

Chem 104
The reaction of 2.30g N2 with excess H2 produces 2.00g NH3. The percent yield of this reaaction is?
Thursday, July 21, 2011 at 11:15pm by Zoria

chemistry
Find the theoretical yield when 100 mL of 0.1 M NaI is reacted with 0.50 mL of Br2 (density: 3.10 g/mL) to produce NaBr and I2. What is the actual yield if the percent yield is 81%? (Atomic masses (g/mol): Na, 22.99; I, 126.9; Br, 79.90)
Monday, August 22, 2011 at 6:26pm by lili

chem
what is the percent yield if 27 g of h20 obtained when 33 g of c3h8 reacts with 56 L of 02 at STP.The secong product of reaction is CO2
Wednesday, March 13, 2013 at 6:38pm by percent

Organic Chem/ Calculate Yield
How would you calculate the percent yield for a reaction that began with 10 moles of acetone and 16 moles of benzaldehyde which yielded 6 moles of dibenzalacetone as the product? The molecular weights are as follows (acetone = 58.08 g/mole), (benzaldehyde = 106.2 g/mole), (...
Thursday, March 8, 2007 at 5:00pm by Steve

CHEM
1. How many moles of water can be made from 4 moles of oxygen gas and 16 moles of hydrogen gas? What is the limiting reagent? 2. Calculate the mass of water produced from the reaction of 24.0 g of H2 and 160.0 g of O2. What is the limiting reagent? 3. The burning of 18.0 g of...
Sunday, June 1, 2008 at 9:05pm by Anonymous

Chemistry
For my theortical yield I got 1.1173 g For my actual yield I got 0.27 g I need to find my percent yield and percent error. Did I do this right? % Yield = (0.27/1.1173) * 100 = 24 % % Error = [(0.27-1.1173)/1.1173] * 100 = -76 %
Wednesday, November 5, 2008 at 10:09pm by Lena

FINANCE
Current yield and yield to maturity A bond has a $1,000 par value, 10 years to maturity, a 7 percent annual coupon, and sells for $985. a. What is its current yield? b. What is its yield to maturity (YTM)? c. Assume that the yield to maturity remains constant for the next 3 ...
Tuesday, September 18, 2007 at 7:14pm by Mel

financial management
current yield for annual payments bonds have 25 years remaining to maturity. the bonds have a face value of $1000 and a yield to maturity of 7 percent. they pay interest annually and have a 11 percent coupon rate. what is their current yield?
Tuesday, December 29, 2009 at 4:55pm by judy

chem
Calculate the percent yield of Cl2(g) in the electrolytic decomposition of hydrogen chloride if 25.8 g of HCl produces 13.6 g of chlorine gas.
Sunday, June 1, 2008 at 8:44pm by Anonymous

organic chemistry
how do u find the percent yield of 4.0g of acetanilide AND 31.12G OF 4-bromoacetanilide. calculate the percent yield of 4-bromoacetanilide
Tuesday, November 23, 2010 at 6:21pm by georgie

chemistry check my work
C7H6O3+CH3OH→C8H8O3+H2O In any experiment, 1.50g of salicyclic acid is reacted with 11.20g of methanol. The yield of methyl salicylate, C8H8O3, is 1.31g. What is the percent yield? percent is 77.l1% is this correct?
Thursday, April 15, 2010 at 8:14am by Molly

science
Suppose 65.8 g of Carbon monoxide reacts with 8.6 g of hydrogen. What is the limiting reagent? What is the theoretical yield of the product in moles and grams? If the actual yield of the product is 3.57 g, what is the percent yield?
Tuesday, October 5, 2010 at 7:23pm by Anonymous

Chemistry
A student begins with 9.7 mL of a 0.26 M Cu(NO3)2 solution and performs copper cycle lab. She recovers 0.075 grams of copper metal. A) What is the Theoretical Yield B) What is the Actual Yield C) What is the Percent Yield
Monday, February 10, 2014 at 6:57pm by C

Chemistry:Important!!!!!!!
A student begins with 9.7 mL of a 0.26 M Cu(NO3)2 solution and performs copper cycle lab. She recovers 0.075 grams of copper metal. A) What is the Theoretical Yield B) What is the Actual Yield C) What is the Percent Yield
Monday, February 10, 2014 at 7:55pm by B

Corporate Finance
The yield-to-maturity on a bond is the interest rate you earn on your investment if interest rates do not change. If you actually sell the bond before it matures, your realized return is known as the holding period yield. Suppose that today, you buy a 12 percent annual coupon ...
Thursday, April 21, 2011 at 12:08am by Nik

chemistry
The theoretical yield of a reaction is 78.5 grams of product and the actual yield is 66.3 grams. What is the percent yield?
Tuesday, December 11, 2012 at 5:42pm by Anonymous

chem
Sb2S3(s) + 3 Fe(s) 2 Sb(s) + 3 FeS(s) When 14.7 g Sb2S3 reacts with an excess of Fe, 9.84 g Sb is produced. What is the percent yield of this reaction? %
Thursday, February 9, 2012 at 8:28pm by Anonymous

Organic Chem
Bromine will react with limonene according to this reaction (there's a picture, but I can't get that on here. So I'll do my best to write it out). 136.23 g/mol + Br2 ------> 296.04 g/mol Suppose 627 mg of limonene was reacted with 3.7 mL of a 7.7% (v/v) solution of Br2 in ...
Wednesday, November 2, 2011 at 7:39pm by Marvin

chemistry
a student synthesized 6.895g of barium iodate monohydrate, Ba(IO3)2.H2O, by adding 30.00 mL of 5.912*10^-1M barium nitrate, Ba(NO3), to 50.00 mL of 9,004*10^-1 M sodium iodate, NaIO3 (1) write the chemical equation for the reaction of solutions of barium nitrate and sodium ...
Monday, March 1, 2010 at 1:32pm by aymal

Chemistry :)
Cr2O3 + 3CCl4 ---> 2CrCl3 + 3CCl2O In one experiment, 6.37 grams of Cr2O3 was treated wiht excess CCl4 and yielded 8.75 grams of CrCl3. What was the percent yeild? I have no idea how to do this. I know that percent yield is actual/theorectical yield *100. And i know how to ...
Wednesday, February 6, 2008 at 3:52pm by Miley

chemistry
1. Chlorobenzene, C6H5Cl, is used in the production of chemicals such as aspirin and dyes. One way that chlorobenzene is prepared is by reacting benzene, C6H6, with chlorine gas according to the following BALANCED equation. C6H6 (l) + Cl2 (g) nC6H5Cl (s) + HCl (g) a. What ...
Wednesday, March 31, 2010 at 7:35pm by Michael

chemistry
Would a damp filter paper affect the theoritical yield, calculated actual yield and calculated percent yield. Please help. Chemistry is hard.
Monday, November 19, 2012 at 11:26am by Anonymous

Chemistry
Could someone check my answers? 1. Why was 95% ethanol alcohol added when titrating aspirin in an experiment? Because it helps the aspirin dry quicker and become pure while the titration is going on. 2. Would the following mistakes cause the calculated percent yield to be ...
Tuesday, March 27, 2007 at 1:25am by Jim

Chemistry
125 mL of 1.00 HCl with 9.00 g of KOH. if the yield of KCL is 7.51 g what is the percent yield of the reaction
Monday, October 17, 2011 at 2:51pm by Nicole

chemistry
D --> E and E --> F have yield of 61% and 83% respectively. what is the overall percent yield for conversion D --> F? thank you.
Monday, October 26, 2009 at 8:08pm by Brittany

Chemistry
Consider the following reaction: 2 SO2 (g) + O2 (g)----> 2 SO3 (g) If 285.3 mL of SO2 is allowed to react with 158.9 mL of O2 (both measured at 315 K and 50.0 mmHg), what is the limiting reactant and theoretical yield of SO3 in moles? If 187.2 mL of SO3 is collected (...
Wednesday, October 27, 2010 at 10:07pm by Jarrod

accounting
Midland Oil has $1,000 par value bonds outstanding at 8 percent interest. The bonds will mature in 25 years. Compute the current price of the bonds if the present yield to maturity is: A. 7 percent. B. 10 percent. C. 13 percent.
Sunday, January 10, 2010 at 9:53pm by Cindy

math
Midland Oil has $1,000 par value bonds outstanding at 8 percent interest. The bonds will mature in 25 years. Compute the current price of the bonds if the present yield to maturity is: A. 7 percent. B. 10 percent. C. 13 percent.
Monday, January 11, 2010 at 11:53am by Robert

chemistry
In one process of 5.75 kg of CaF2 are treated with an excess of H2SO4 and yield 2.85 kg of Hf calculate the percent yield of hf?
Friday, June 8, 2012 at 12:54pm by April

Chemistry
Calculate the percent yield of iron if 950 g of Fe3O4 underwent the reaction shown in the chemical equation below and 533 g of Fe was isolated from the reaction mixture. Fe3O4 (s) + 2 C(s) ----> 2 CO2 (g) + 3 Fe(s) 1). 25.9% 2). 77.5% 3). 56.1% 4). None of the above. Based ...
Wednesday, April 11, 2007 at 4:24pm by Van jan

Chemistry - Mass-Mass conversion & Percent yield
Please show work 1. N2 (g) + 3H2(g) ---> 2NH3(g) 100.0 g of nitrogen reacts completely with excess hydrogen, and 34.0 g of NH3 are obtained what is the percent yield of ammonia? 2. 2Al (s) + 3Cl2(g) ---> 2AlCl3(s) Assume that 0.40 g of Al is mixed with 0.60 g Cl2. (a) ...
Thursday, February 21, 2013 at 2:08pm by Anonymous

finance
Suppose Delta Company issued bonds with a 15-year maturity, a Rs. 1,000 par value, a 12 percent coupon rate, and semiannual interest payments. If actual price of the bond in the market is Rs 900, compute yield to maturity, current yield and capital gain yield.
Sunday, June 23, 2013 at 11:32am by mira

Chemistry
I am trying to find the theoretical yield for this lab I am working on. The steps to finidng it would be great. In my lab I took 40mls of H2O + 4g of AgNO3+ 8g of NaCL then I stirred it and filtered in a buchner funnel to be left with 6.7496g of silver chloride (AgCL) The ...
Sunday, June 7, 2009 at 1:36pm by Gweedo8

financial
2. A bank is considering an investment in a municipal security that offer a yield of 6 percent. What is the securitys tax equivalent yield if the banks tax rate is 35 percent
Wednesday, November 28, 2012 at 3:01pm by sandra

chemistry2
if 160g of Al reacts with O2 to produce 260g of Al2O3.calculate the theoretical yield and the percent yield 4Al+3O2 2Al2 O3
Wednesday, May 5, 2010 at 6:53pm by chris

chem
What is the actual amount of magnesium oxide produced when excess carbon dioxide reacts with 42.8 g of magnesium metal? The percent yield of MgO(s)for this reaction is 81.7%. 2Mg(s) . CO2(g) y 2MgO(s) . C(s)
Sunday, June 1, 2008 at 8:45pm by Anonymous

STOCKS & BONDS
The real risk-free rate of return has been estimated to be 2 percent under current economic conditions. The 30-day risk-free rate (annualized) is 5 percent. Twenty-year U.S. government bonds currently yield 8 percent. The yield on 20 year bonds issued by the Forester Company ...
Thursday, November 15, 2012 at 10:19am by Yinka

Chemistry
I am trying to find the theoretical yield for this lab I am working on. The steps to finidng it would be great. In my lab I took 40mls of H2O + 4g of AgNO3+ 8g of NaCL then I stirred it and filtered in a buchner funnel to be left with 6.7496g of silver chloride (NaCL. The ...
Sunday, June 7, 2009 at 12:08pm by Gweedo8

Chemistry Lab
if i get 4 % of yield in the experiment of chemical reactions of copper and percent yield. Is there a possibility the experiment wa success? ~in my opinion it was success because ou theoritical yield is below 100 % ~i just need some opinion.
Monday, July 25, 2011 at 3:00pm by Yuni

chemistry
A student extracts 6.3 g of water when performing the following combustion: C2H8 + 4O2 --> 2 CO2 + 4H2O If the theoretical yield is 8.6, what is the percent yield?
Monday, March 18, 2013 at 3:06pm by Lindt

FINANCE
Yield to call Six years ago, the Singleton Company issued 20-year bonds with a 14 percent annual coupon rate at their $1,000 par value. The bonds had a 9 percent call premium, with 5 years of call protection. Today, Singleton called the bonds. Compute the realized rate of ...
Tuesday, September 18, 2007 at 7:15pm by Mel

chemistry
I need some help with calculating percent yield and percent purity of aspirin. Here's my data (questions follow): SYNTHESIS Mass of salicylic acid.., 2.0 g Volume of acetic anhydride.., 5 mL Mass of watch glass.., 22.10 g Mass of aspirin and watch glass.., 28.01 g Mass of ...
Saturday, March 24, 2007 at 11:33am by Jim

Chemistry
need to calculate percent yield of MgNH4PO4 . 6H2O obtained in my experiment using 10-52-10 plant food label as a guide to determine the theoretical yield of MgNH4PO4 . 6H2O. My calculations so far: air dry weight of MgNH4PO4 . 6H2O = 2.30 g Grams of phosphorusin MgNH4PO4 ...
Friday, May 27, 2011 at 1:36pm by Julia

Finance
A bond has a $l000 par value, l0 years to maturity, a 7 percent annual coupon, and sells for $985. a. What is its current yield? b. What is its yield to maturity c. Assuke that the yield to maturity remains constant for the next 3 years, what will the price be 3 years from today?
Thursday, September 9, 2010 at 11:16pm by Catherine

math
A bond has an average return of 6.8 percent and a standard deviation of 4.6 percent. What range of returns would you expect to see 68 percent of the time? a. 2.2 percent to 11.4 percent b. 4.6 percent to 11.4 percent c. 4.6 percent to 22.8 percent d. 11.4 percent to 22.8 ...
Thursday, May 7, 2009 at 7:16pm by Emi

finance
6. You are considering an investment in a one-year government debt security with a yield of 5 percent or a highly liquid corporate debt security with a yield of 6.5 percent. The expected inflation rate for the next year is expected to be 2.5 percent. a. What would be your real...
Saturday, January 28, 2012 at 7:59pm by fran123

Finance
You are considering an investment in a one-year government debt security with a yield of 5 percent or a highly liquid corporate debt security with a yield of 6.5 percent. The expected inflation rate for the next year is expected to be 2.5 percent. A. What would be your real ...
Wednesday, January 30, 2013 at 5:34pm by Anonymous

Finance
You are considering an investment in a one-year government debt security with a yield of 5 percent or a highly liquid corporate debt security with a yield of 6.5 percent. The expected inflation rate for the next year is expected to be 2.5 percent. a. What would be your real ...
Sunday, November 3, 2013 at 10:23am by Chanel

More Chemistry (yeah im bad at math...)
In the Reaction CO+2H-->CHOH, 1.27 g of CHOH are made in the lab. The Percent yield of this reaction is___. Would the answer be 42? Pick a number, any number. You need to know how much CO OR H2 you started with. As it stands, the answer is indefinite. so... it dosent ...
Thursday, January 18, 2007 at 10:39pm by Briana

chem
What is the percent yield for a reaction when 166.3 grams of W2O3 combines with Carbon Monoxide but only produces 147.8 grams of W? chemical equation is W2O3+3CO------>2W+3CO2
Friday, October 26, 2012 at 12:40am by Carina 78

Chem
I am doing a lab concerning pH... Why is it necessary to allow a mixture of 25mL of a 0.1M HCl solution with 20mL of a 0.08M NaOH solution to cool to room temperature? (I don't know if the actualy concentrations matter) Does it affect the pH? Yes, temperature affects the pH ...
Wednesday, March 7, 2007 at 10:14pm by Marisol

Chemistry
When 4.0 mol of CCl4 reacts with an excess of HF, 3.0 mol of CCl2F2 (Freon) is obtained. The equation for the reaction is CCl4(l) + 2HF(g) --> CCl2F2(l) + 2HCl9g) State which of the statements are true about the reaction and make the false statements true. (a) The ...
Wednesday, September 15, 2010 at 8:28pm by Bree

chemistry
would it be: O.2576/0.7086=0.3635 0.3635 X 87.65= actual yield? A 2.30-mL sample of methane gas (density 0.112 g/cm3) was completely combusted. If the percent yield of each of the combustion products is 87.65%, calculate the actual yield in grams of carbon dioxide gas. * ...
Saturday, October 23, 2010 at 5:16pm by gary

chem
Consider the fermentation reaction of glucose: C6H12O6 ----) 2C2H5OH+2CO2 A 1.00-mol sample of C6H12O6 was placed in a vat with excess yeast. If 35.1 g of C2H5OH was obtained, what was the percent yield of C2H5OH?
Thursday, March 14, 2013 at 3:40pm by shane

Chem
A sample of an unknown biochemical compound is found to have a percent composition of 55.03 percent carbon, 5.54 percent hydrogen, 32.10 percent nitrogen and the balance oxygen. What is the simplest formula for this compound ? How do I do this?
Thursday, October 4, 2012 at 9:24pm by Melinda

Finance
Your company sponsors a 401(k) plan into which you deposit 12 percent of your $60,000 annual income. Your company matches 50 percent of the first 5 percent of your earnings. You expect the fund to yield 10 percent next year. If you are currently in the 31 percent tax bracket, ...
Friday, January 16, 2009 at 6:24pm by Susan

Chemistry
When 2.6 103 g of CaCO3 are heated, the actual yield of CaO is 1.06 103 g. What is the percent yield? Answer in units of %.
Wednesday, March 23, 2011 at 12:47am by Jack

Chemistry
What is the percent yield of CO2 if 80g of Fe2(CO3)3 is decomposed to yield Fe2O3 + 22g of CO2
Saturday, November 26, 2011 at 6:47pm by Renee

chem
A metal oxide reacts with water to produce a metal hydroxide. What additional information would you need to determine the percent yield of metal hydroxide from this reaction?
Thursday, April 8, 2010 at 3:58pm by Marc

chemistry
When NH3 is prepared from 28 g of N2 and excess H2, the theoretical yield of NH3 is 34 g. When this reaction is carried out in a given experiment, only 30 g is produced. What is the percent yield?
Friday, July 23, 2010 at 4:30pm by Anonymous

chem
Anhydrous aluminum oxide can be reduced to aluminum according to thisa chemical equation: 2 Al2O3 (s) ---> 4 Al (l) + 3 O2 (g) Calculate the mass of aluminum oxide reacted if 91.4 g of Al was produced and the percent yield was found to be 89.3%
Wednesday, September 15, 2010 at 10:39am by vanessa

chemistry
If you used 0.155 mL of acetic anhydride, and 0.165 g of p-aminophenol what was your theoretical yield of acetaminophen? ___________g If you recovered 0.173 g of acetaminophen, what was your percent yield? ________%
Wednesday, October 19, 2011 at 1:47am by ej

Chemistry
If the theoretical yield of a reaction is 18.6 grams & 7.6 grams were collected the.experiment, what is the percent yield
Monday, November 5, 2012 at 11:27am by B

Chemistry
K+(aq) + Al3+(aq) + 2SO42-(aq) + 2H2O(l)→KAl (SO4)2 * 12H2O(s) Al is limiting and 1.007 g Find the theoretical yield and percent yield I think the answer is 17 and 40, respect. I just need help figuring it out
Thursday, December 5, 2013 at 11:20pm by Emily

Finance
6. You are considering an investment in a one-year government debt security with a yield of 5 percent or a highly liquid corporate debt security with a yield of 6.5 percent. The expected inflation rate for the next year is expected to be 2.5 percent. a. What would be your real...
Friday, November 2, 2012 at 1:11pm by Heather

Organic Chemistry Lab
Hi! For an orgo lab we had to isolate the following from milk powder and now I have to calculate the percentage yield, but first I need the theoretical yield. Can someone help me on the following? I need to know how of each there is in milk and I can do further calculation of ...
Friday, April 8, 2011 at 7:34pm by Jeanne

Chemistry
C7H6O3+CH3OH→C8H8O3+H2O In any experiment, 1.50g of salicyclic acid is reacted with 11.20g of methanol. The yield of methyl salicylate, C8H8O3, is 1.31g. What is the percent yield?
Wednesday, April 14, 2010 at 9:34am by Molly

chemistry
A 2.30-mL sample of methane gas (density 0.112 g/cm3) was completely combusted. If the percent yield of each of the combustion products is 87.65%, calculate the actual yield in grams of carbon dioxide gas.
Saturday, October 23, 2010 at 4:15pm by gary

chemestry
For the following reaction, 6.84 grams of benzene (C6H6) are mixed with excess oxygen gas. Assume that the percent yield of carbon monoxide is 71.1 %. 2 C6H6 (l) + 9 O2 (g) 12 CO (g) + 6H2O (g) (1) What is the theoretical yield of carbon monoxide ? __grams (2) What is the ...
Wednesday, November 17, 2010 at 1:30am by cristy

General Chemistry
CaO + 2NH4Cl > 2NH3 + H2O + CaCl2 If 112 g of CaO and 224 g of NH4CL are mixed the theoretical yield of NH2 is 68.0 g. If only 16.3 g of NH3 is actually obtained, what is the percent yield?
Wednesday, December 8, 2010 at 10:01pm by Jashmid

Chemistry
If the reaction of 2.5 g of Al with 2.5 g of O2 produced 3.5 g of Al2O3, what is the percent yield of Al2)3? Be sure to write and balance equation. 4Al + 302 ---> 2Al2O3 2.5 g Al x (1 mol Al / 108 g) x (2 mol Al2O3 / 4 mol Al) = .0115 mol Al2O3 .0115 mol Al2O3 (204 g Al2O3...
Tuesday, December 28, 2010 at 1:08pm by Anonymous

Chemistry
Assuming an efficiency of 38.60%, calculate the actual yield of magnesium nitrate formed from 145.9 g of magnesium and excess copper(II) nitrate. I got 230.5g but it isn't right.. I got 6 mols of Mg then calculated molar mass of Mg(NO3)2 and got 148.31 and then multiplied the ...
Tuesday, April 22, 2014 at 10:24am by Clare

chem
consider the following balance chemical equation: 2NH3(g)+3CuO(s)=N2(g)+3Cu(s)+3H2O(g) if 18.1grams of ammonia reacts with 90.4 grams of copper(II) oxide, which is the limitting reagent?? what is the theorectical yield of nitrogen gasd? if 8.52 g of N2 are formed, what is the...
Sunday, November 14, 2010 at 11:00pm by julia

Accounting
Go to Table 10-1 which is based on bonds paying 10 percent interest for 20 years. Assume interest rates in the market (yield to maturity) decline from 11 percent to 8 percent: A. What is the bond price at 11%? B. What is the bond price at 8%? C. What would be your percentage ...
Sunday, January 10, 2010 at 9:58pm by Beth

Math
Go to Table 10-1 which is based on bonds paying 10 percent interest for 20 years. Assume interest rates in the market (yield to maturity) decline from 11 percent to 8 percent: A. What is the bond price at 11%? B. What is the bond price at 8%? C. What would be your percentage ...
Monday, January 11, 2010 at 11:56am by Robert

MATHH
Suppose 10,000 is invested at 6 percent.how much additional money must be invested at 8 percent to produce a yield on the entire amount invested of 7.2 percent. ( Please show each and every steps of this math with the rough works) THANK YOU SO MUCH.
Monday, October 21, 2013 at 10:35am by HELP NEED HELPs!!!!

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