1-Under what conditions will a precipitate form? 2-What information do you need to calculate percent yield?...
1-Under what conditions will a precipitate form?
2-What information do you need to calculate percent yield?
3-Where can you go to find the information regarding the atomic mass of an element?
4-Why is atomic mass significant to calculating percent yield?
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1-Under what conditions will a precipitate
form?
2-What information do you need to calculate percent
yield?...
Help 2. What color was the solution filtrate after you filtered the cuprous thiocyanate precipitate? What...
Help
2. What color was the solution filtrate after you filtered the cuprous thiocyanate precipitate? What ion in solution caused this color? Fne Pmu 1sh- wmte NHuSCN 3. A coin is composed of gold and silver. The 5.00 a coin is dissolved in nitric acid and the solution treated with NaCI to precipitate out 2.35 g of AgCl. Gold chlorides do not precipitate under the same conditions. What is the percent composition of silver (by mass) in this coin? 4....
Part A What is the theoretical yield in grams for this reaction under the given conditions?...
Part A What is the theoretical yield in grams for this reaction under the given conditions? Express your answer to three significant figures and include the appropriate units. View Available Hint(s) 9.08 mol Submit Previous Answers X Incorrect; Try Again: 4 attempts remaining Part B What is the percent yield for this reaction under the given conditions ? Express your answer to three significant figures and include the appropriate units. View Available Hint(s) mistry for CHEM 160 -CRN 7556 en...
So we are doing a Green Bromination of Stilbene and need to calculate the percent yield...
So we are doing a Green Bromination of Stilbene and need to calculate the percent yield of the reaction Percent yield of 1,2-dibromo-1,2-diphenylethane the starting material: molecular weight =66g/mol starting mass = 1.28 g the product molecular weight= 164 g/mol At the completion of your reaction you isolated 2.61 g of your desired product. From the following information calculate the % yield of your reaction. Show your work and watch sigfigs!
help with all questions(: 1) Describe what the crystals look like? 2) If your percent yield...
help with all questions(:
1) Describe what the crystals look like? 2) If your percent yield is greater that 100%, give one plausible error you may have made. 3) Calculate the limiting reactant and theoretical yield of Cu for the following reaction: First balance the reaction CuSO4 (aq) + Al(s) → Al2(SO4)(aq) + Cu (S) 3.35 g 0.321 g 4) If the actual yield for the reaction in question (3) is 1.06 g, what is the percent yield for the...
Compare the K Would these sulfides precipitate under the conditions given above? Explain. 2. calc...
Compare the K Would these sulfides precipitate under the conditions given above? Explain. 2. calculated above with those of tin(II) sulfide and the α form of nickel (II) sulfide. Nitric acid oxidizes sulfide ion to sulfur. Explain on the basis of net ionic equilibrium equations and LeChatelier's principle why CuS dissolves more readily in HNO, than in HCI. 3. means of appropriate calculations, determine whether the nickel precipitate obtained at pH 8 was Ni(OH)2 or NiS 4. By Explain in...
(1): Do you expect the mass of 12C and 13C the same? if not, how do...
(1): Do you expect the mass of 12C and 13C the same? if not, how do we report "average atomic mass" for carbon? what additional information we need to get the average atomic mass for carbon? (1b) If an element has two isotopes, for example 12C, and 13C, list what they have in common and list what they differ.
YOU NEED TO SHOW ALL YOUR WORK TO RECEIVE FULL CREDITI Calculate the moles of Na2CO3...
YOU NEED TO SHOW ALL YOUR WORK TO RECEIVE FULL CREDITI Calculate the moles of Na2CO3 and MgCl2.6 H20 added to the reaction General Equation: Calculate the theoretical yield and the percent yield of the precipitate What is the limiting reagent? _ (Mass Of Na2CO3 : 0.30119 • Mass of precipitate : 0.1419 - Mass Of MgCl2 6H2O: 0.30119 Balanced Chemical equation ( states included) Na2CO3 + MgCl2 · 6 H2O → 2 Nac) + MgCO3 + 6H2O calculate the...
Can you explain how to find what is the theoretical yield, and the desired percent yield...
Can you explain how to find what is the theoretical yield, and
the desired percent yield of ethyl 4-nitrobenzoate?
1. Synthesis of ethyl 4-nitrobenzoate a) In a 50-ml round-bottom flask, weigh out 4-nitrobenzoic acid (0.85 g, 0.005 mol). Add to this 8 ml of absolute ethanol. Add boiling stones, and then bring this solution to the Lab Technologist. WATER OUT b) The Lab Technologist will deliver 1.2 ml of concentrated sulfuric acid to the mixture from the automatic pipette. [CAUTION,...
Determine whether a precipitate form in the following reaction conditions: a. A solution containing lead (II)...
Determine whether a precipitate form in the following reaction conditions: a. A solution containing lead (II) nitrate is mixed with one containing sodium bromide to form a solution that is 0.0150 M in Pb(NO3)2 and 0.00350 M in NaBr. Does a precipitate form in the newly mixed solution? Ksp PbBr2 = 4.67 x 10-6 . b. A solution containing iron (II) nitrate is mixed with one containing sodium phosphate to form a solution that is 0.0365 M in Fe(NO3)2 and...
I need help with E. I keep getting 393.21 3) Calculate the percent yield with following...
I need help with E. I keep getting 393.21
3) Calculate the percent yield with following steps. (Assume that you obtain 0.4 g benzoic acid at the end of the reaction). (Show your calculations) (5 pts) a) Calculate the number of moles for each reagent listed below i) Bromobenzene (0.7 g) ii) Mg (0.15 g) iii) Dry ice (3 g) iv) 6 M HCl (5 mL) b) What is the limiting reagent? c) Calculate the expected number moles for the...
Help
2. What color was the solution filtrate after you filtered the cuprous thiocyanate precipitate? What ion in solution caused this color? Fne Pmu 1sh- wmte NHuSCN 3. A coin is composed of gold and silver. The 5.00 a coin is dissolved in nitric acid and the solution treated with NaCI to precipitate out 2.35 g of AgCl. Gold chlorides do not precipitate under the same conditions. What is the percent composition of silver (by mass) in this coin? 4....
Part A What is the theoretical yield in grams for this reaction under the given conditions? Express your answer to three significant figures and include the appropriate units. View Available Hint(s) 9.08 mol Submit Previous Answers X Incorrect; Try Again: 4 attempts remaining Part B What is the percent yield for this reaction under the given conditions ? Express your answer to three significant figures and include the appropriate units. View Available Hint(s) mistry for CHEM 160 -CRN 7556 en...
help with all questions(:
1) Describe what the crystals look like? 2) If your percent yield is greater that 100%, give one plausible error you may have made. 3) Calculate the limiting reactant and theoretical yield of Cu for the following reaction: First balance the reaction CuSO4 (aq) + Al(s) → Al2(SO4)(aq) + Cu (S) 3.35 g 0.321 g 4) If the actual yield for the reaction in question (3) is 1.06 g, what is the percent yield for the...
Compare the K Would these sulfides precipitate under the conditions given above? Explain. 2. calculated above with those of tin(II) sulfide and the α form of nickel (II) sulfide. Nitric acid oxidizes sulfide ion to sulfur. Explain on the basis of net ionic equilibrium equations and LeChatelier's principle why CuS dissolves more readily in HNO, than in HCI. 3. means of appropriate calculations, determine whether the nickel precipitate obtained at pH 8 was Ni(OH)2 or NiS 4. By Explain in...
YOU NEED TO SHOW ALL YOUR WORK TO RECEIVE FULL CREDITI Calculate the moles of Na2CO3 and MgCl2.6 H20 added to the reaction General Equation: Calculate the theoretical yield and the percent yield of the precipitate What is the limiting reagent? _ (Mass Of Na2CO3 : 0.30119 • Mass of precipitate : 0.1419 - Mass Of MgCl2 6H2O: 0.30119 Balanced Chemical equation ( states included) Na2CO3 + MgCl2 · 6 H2O → 2 Nac) + MgCO3 + 6H2O calculate the...
Can you explain how to find what is the theoretical yield, and
the desired percent yield of ethyl 4-nitrobenzoate?
1. Synthesis of ethyl 4-nitrobenzoate a) In a 50-ml round-bottom flask, weigh out 4-nitrobenzoic acid (0.85 g, 0.005 mol). Add to this 8 ml of absolute ethanol. Add boiling stones, and then bring this solution to the Lab Technologist. WATER OUT b) The Lab Technologist will deliver 1.2 ml of concentrated sulfuric acid to the mixture from the automatic pipette. [CAUTION,...
I need help with E. I keep getting 393.21
3) Calculate the percent yield with following steps. (Assume that you obtain 0.4 g benzoic acid at the end of the reaction). (Show your calculations) (5 pts) a) Calculate the number of moles for each reagent listed below i) Bromobenzene (0.7 g) ii) Mg (0.15 g) iii) Dry ice (3 g) iv) 6 M HCl (5 mL) b) What is the limiting reagent? c) Calculate the expected number moles for the...
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