The percentage yield of a reaction can best be described as the ________ times 100%. Group of answer choices amount of product you could make if the reaction went to completion amount of product obtained divided by the maximum possible amount of product
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Q: Use the following information to answer the next question.
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Q: 1. 3 4 5 6 7 8 9 10 11 12 13 14 15 Calculate the percent yield when: Theoretical yield = 4.5 g;…
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A: NH3 + H2SO4 --> (NH4)2SO4 balanced equation is: 2 NH3 + H2SO4→(NH4)2SO4
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A: answer- a) given - 50 gm of Cl and 90 gm of Products balanced equation is - P4 + 6Cl2 → 4PCl3 Moles…
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A: Based on the experimental and theoretical studies, given statements are true/ false are given as:
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A: Theoretical yield of CuCl is determined as follows,
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Q: I make a product and weigh it before it is dry. Does that affect the actual yield? Yes No
A: Given If weigh the product before it get drying its affect the actual yield? = to be determined
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- A student is performing an experiment in the laboratory to determine the oxidation of copper (Cu). Cu reacts with oxygen in the air to formCuO in thefollowing reaction: Cu (s) + O2(g) →CuO (s) The student weighted 1.528gof Cu (s)powderin a crucible and heatedthe sample with a Bunsen burner.Even by using the Cuinpowderform and heating the sample there is unreacted Cu left in the crucible.After heating the student weighted the substance inside the crucible to be 3.647g. 1) If the student weighted 3.647 g of substance in the crucible. Calculate how much of this is unreacted Cu (s) and how much is CuO (s). (Hint: use the balanced chemical equation). 2) Once you know the amount of CuO (s) obtained in this experiment, calculate the percent yieldof CuO in this experiment.Certain salts of benzoic acid have been used as food additives for decades. The potassium salt of benzoic acid, potassium benzoate, can be made by the action of potassium permanganate on toluene according to the following reaction (unbalanced): C7H8 + KMnO4 = KC7H5O2 + MnO2 + KOH + H2O If the yield of potassium benzoate cannot realistically be expected to be more than 69.50%, what is the minimum number of grams of toluene needed to achieve this yield while producing 10.00 g of KC7H5O2?Mass of Na2CO3.H2O (g) = 2.12g (g) Mass of the CaCl2.2H2O (g) = 1.98g Mass of the top funnel + filter paper (g) = 15.85g Mass of top funnel + filter paper + CaCO3 collected (g) = 17.81g CaCl2 + Na2CO3 ==== CaCo3 + 2NaCl Moles Na2CO3 reacting? Moles CaCO3 reacting? Moles CaCO3 produced by the LR? Theoretical yield in moles and grams? Reagent in excess? Moles of reagent in excess left unreacted? Mass of precipitate? Experimental yield? Percent yield?
- For the reaction shown, find the limiting reactant for each of the initial quantities of reactants. express all answers as chemical forumals 2Li(s)+Br2(l)→2LiBr(s) -1 molLi ; 1 molBr2 -1.8 molLi ; 1 molBr2 -2.2 molLi ; 1 molBr2 -An essentially 100% yield is necessary for a chemicalreaction used to analyze a compound, but it is almostnever expected for a reaction that is used to synthesizea compound. Explain this differenceAntimony is produced by heating powdered antimony trisulphide with iron and removing the molten antimony from the reaction vessel. If 1.8 kg of antimony trisulphide and 1.3 kg of iron are heated to give 0.9 kg of antimony. The reaction is as follows: Sb2S3 + 3Fe --> 2Sb + 3FeS The amount of percentage excess of the Excess Reactant is: The amount of percentage excess of the Excess Reactant is: 46.45% 52.77% 47.53% 69.75% The degree of completion of the reaction is: 46.45% 52.77% 47.53% 69.75% The percentage conversion of iron is: 46.45% 52.77% 47.53% 69.75%
- Name of Vinegar Sample Vinegar Sample 1 Vinegar Sample 2 Vinegar Sample 3 Mass of Vinegar (g) 5.00 4.98 4.99 Volume of Vinegar (mL) 5.00 5.00 5.00 Initial NaOH Volume in Syringe (mL) 10.00 10.00 10.00 Final NaOH Volume in Syringe (mL) 5.70 5.90 5.60 Volume NaOH Delivered (mL) 4.30 4.10 4.40 Moles of NaOH Delivered Moles of Acetic Acid in Sample Mass of Acetic Acid in Sample Calculated Molarity of Acetic Acid in Sample Vinegar Calculated Percent Mass of Acetic Acid in Sample Vinegar Average Calculated Percent Mass of Acetic Acid in Sample Vinegar The NaOH is 1.0 M. Please help me figure out the blank ones. It would also be helpful to see how to actually do the seperate problems since I will need to show my work. Thank you!Please find the CO2 amount and show the calculation: Air composition (apprx) = 80% N2 and 20% O2 (mol basis only)Average molecular weight of Air = (0.8 x 28 + 0.2 x 32) = 29 g/mol (apprx) Math Sample:2kg pure charcoal (12C) is to be burnt completely with air. Find the air, CO2 andN2 amount in kg’s.Solution:C + O2 = CO2 (you must use a balanced equation)Therefore from the mole ratio of the reaction we write,C : O2 : CO2 = 1:1:1and from air composition we gotO2 : N2 : Air = 1:4:5 Given, 2 kg C = 2000 g/ (12 g/mol) = 166.67 mole CTherefore, similar mole of O2 required. So equivalent Air supposed to be 5times than the mole amount of O2 and released N2 will be 4 times than therequired O2. Therefore, Air amount = 5 x 166.67 moles= 833.34 moles= (833.33x29/1000) kg= 24.17 kg air Similarly N2 released amount will be = (166.67 x 4 x 28/1000) kg = 18.67 kgFind CO2 amount by yourself! (Isn’t it 7.34 kg?)A chemist setup a synthesis of phosphorus trichloride by mixing 12.0gP with 35.0gCl _(2) and obtained 42.4gPCl _(3). Calculate the percentage yield of this compound. P(s)+Cl_(2)(g)->PCl _(3)(l) Please type answer note write by hend
- Chlorination of methane is shown as: Ch4 + Cl2 = CH3Cl + HClIf the feed contains 40% CH4, 50% Cl2 and 10%N2 and 67% of the limiting reactant is converted... Composition of methyl chloride(in moles) in the product? CHOICES: 26.8 49.2 55.4 67.9 Composition of nitrogen(in moles) in the product? CHOICES: 9 10 11 12After performing the synthesis of Acetaminophen (Paracetamol) in the laboratory, two groups of Organic Chemistry students obtained the following experimental results for the mass of Acetaminophen (Paracetamol): Theortical yield for acetaminophen (Paracetamol) = 7.82g Group 1: 8.205 g Group 2: 6.528 g Show ALL steps and mathematical equations involved in your calculations to help the students. Remember to label all steps clearly and use appropriate units in each step. Which equation should the students use to calculate the percent yield? Calculate the percent yield for Group 1 (provide your answer to 1 decimal place) Calculate the percent yield for Group 2 (provide your answer to 1 decimal place) Which group would you recommend repeat the experiment and why?The limiting reactant will always have remains of unreacted materials left over once the reaction is completed True or false