w would your value for the % yield be changed (increased, decreased, or remain the same) if: you did not heat the Cu long enough to remove all of the water at the end of the experiment? some of the product fell out when draining the solution and during water rinses? After heating, you recorded 98.207 g instead of the actual 98.5

Q: After mixing these solutions... determine which compound, (NazCO3 or Ni(NO3)2) will be the limiting…

A: Calculation of number of moles of the two reactants given is shown below.

Q: A student is performing an experiment in the laboratory to determine the oxidation of copper (Cu).…

A: “Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: Upon reaction of 1.27 g of copper sulfate with excess zinc metal, 0.351 g copper metal was obtained…

A:

Q: Would the calculated percentage of the hydrate in a sample be too high, too low, or unaffected by…

A: The percentage of water in the hydrate can be calculated by: % water =Mass of water lostOriginal…

Q: 5. A student reacts 6.00 g of ammonium sulfide with 6.00 g of zinc (II) acetate. Upon completion of…

A: Limiting reactant :-  A reactant which is present in lesser number of molrs than required as per…

Q: Identify 2 things that could happen during an experiment to cause tthe actual yeild to be lower than…

A: Theoretical yield is the maximum amount of product which can be formed in a reaction.  Actual yield…

Q: A 0.6447 g portion of manganese dioxide was added to an acidic solution in which 1.1402 g of a…

A: Given data, MnO2 taken = 0.6447 g Chloride sample taken = 1.1402g MnO2 recovered = 0.3521g.

Q: What is the formula for the limiting reagent? ______. What is the maximum amount of barium chloride…

A:

Q: Methanol (CH3C In a certain experiment, from the reaction of 2.91 mL of methanol with 2.88 g of…

A: Introduction : Since carbon is reacting with oxygen to give carbon dioxide. given: Volume of…

Q: Lead content can be analyzed gravimetrically by precipitating it as lead (ll) sulfate, PbSO4. When…

A: Gravimetric analysis:  This kind of analysis in chemical science has the application in the…

Q: Methanol (CH3OH) is a liquid at room temperature with a density of 7.91 x102 kg/m³. In a certain…

A: Percent yield = (Practical yield/theoretical yield)×100

Q: - How would your value for the percentage yield be changed (increased, decreased, or remain the…

A: When the product compound did not heat long enough to remove all of the water then there was…

Q: Mercury (Hg) is typically obtained from the ore Cinnabar, mercury (II) sulfide (HgS), according to…

A: Given that : Mercury (Hg) is typically obtained from the ore Cinnabar, mercury (II) sulfide…

Q: What factors during the experiment caused the percent yield to be different than 100%? What…

A: Interpretation: To spot the impurities in the IR data of the product i.e. cyclohexene. The…

Q: Methanol (CH3OH) is a liquid at room temperature with a density of 7.91 *10² kg/m³. In a certain…

A: Methanol has a variety of uses as a fuel, laboratory reagent, solvent, etc. In the given reaction,…

Q: A certain dehydration experimental procedure specifies 14.82 mL of 2- methylcyclohexanol (M.W. 114.2…

A:

Q: How will the relative number of moles of Mg and O be affected if the following procedural errors are…

A: a. If the crucible is not brought to constant mass, meaning that it has some additional mass to…

Q: Balance the equation with the products that you came up with from the previous problem. Which number…

A: Given  Reactant =  Ba3(PO4)2   and Na2SO4 Balance reaction and stoichiometric Coefficient  = ?

Q: 1. Determine the maximum mass of aspirin that can be made from the amount of salicylic acid you…

A: Salicylic acid reacts with acetic anhydride and produces aspirin.  1 mol salicylic acid reacts with…

Q: 2. Calculate the theoretical yield and percent yield of aspirin if you started with 1.351 g of…

A:

Q: Balance and complete the following combustion reaction. Enter the sum of the balanced coefficients…

A: Combustion reaction can be described as the chemical reaction which involves the reaction between…

Q: Sulfanilic acid used 25g, Sodium carbonate used 15.2g, Sodium nitrate used 9.94g, 6M HCI used 72 ml,…

A: Sulfanilic acid(C6H7NO3S) reacts with Dimethyl aniline(C8H11N) in the presence of sodium carbonate,…

Q: would the reported mass percent of excess reactant be greater than, less than, or equal to the true…

A: If the precipitate is not completely dried when the mass is determined, then the water mass is also…

Q: Which is the correct mass, in grams, of silver nitrate consumed in the production of 18.372g of…

A: Given: 2 AgNO3(aq) + CuCl2.2H2O (aq) ---> 2 AgCl (s) + Cu(NO3)2(aq) + H2O (l) Observing the above…

Q: 2.513 grams of salicylic acid were allowed to react with excess acetic anhydride to give…

A: # We are given 2.513 g of salicylic acid and excess anhydride reagent to give actual yield 0.534 g…

Q: Lakes that have been acidified by acid rain ( HNO3 and Ha SO4) can be neutralized by a process…

A: The question is based on the concept of reaction stoichiometry. We have to calculate mass of calcium…

Q: A researcher analyzed an unknown solid, extracted from the bark of spruce trees, to determine its…

A: a.  Mass of sample = 11.32 mg  = 0.01132 g       Mass of CO2       = 24.87 mg   = 0.02487 g…

Q: Methanol (CH3OH) is a liquid at room temperature with a density of 7.91 x102 kg/m³. In a certain…

A: The type of chemical reaction that occurs between methanol and oxygen is a combustion reaction in…

Q: . How would your value for the % yield be changed (increased, decreased, or remain the same) if:…

A: The theoretical ratio of number of moles of CuNumber of moles of Fe is one in this case.  Ingeneral,…

Q: Methanol (CH3OH) is a liquid at room temperature with a density of 7.91 ×10² kg/m³. In a certain…

A: (a) It is a combustion reaction. (b) Micropipette can be used to measure the volume of methanol.

Q: Methanol (CH3OH) is a liquid at room temperature with a density of 7.91 ×102 kg/m3 . In a certain…

A: (a) Methanol combust with oxygen to give carbon dioxide and water. Hence it is a combustion…

Q: Naphthalene, a common organic compound, was synthesized during a lab exercise.  The theoretical…

A: Theoretical yield = 9.3740 g Mass of weighing bottle ( A)= 0.1055 g  Mass of weigh boat +…

Q: What is the theoretical yield of aspirin (C9H8O4) in grams? If mass of salicylic acid used is 2.998…

A: Given : Moles of salicylic acid used = 0.0217 mol.

Q: Upon reaction of 1.27 g of copper sulfate with excess zinc metal, 0.494 g copper metal was obtained…

A: Percent yield is given by  Percent yield = (actual yield /theoretical yield) ×100 %   Given data :…

Q: Before arc welding was developed, a displacement reactioninvolving aluminum and iron(III) oxide was…

A: Arc-welding is the process used to join the metals by applying electricity as electricity produces…

Q: Suppose 1.1780g CuCl, and 2.2773g of Na,PO, were reacted as in this experiment. What is the…

A:

Q: 19. A product weighing 12.11 g was isolated/obtained in the laboratory. The maximum amount of…

A: Given,  A product weighing 12.11g was obtained in the experiment, the maximum product can be…

Q: How much LiI is produced when 350.0 g of HI reacts completely with LiOH, according to the equation…

A: Calculate the number of moles of HI. Number of moles = Given massMolar massNumber of moles of HI =…

Q: Q- If iron(lll) phosphate reacts with sodium sulfate to produce iron (lll) sulfate and sodium…

A:

Q: ass of salicylic acid used 2.998 g Moles of salicylic acid (C7H6O3) used 0.0217 moles What is the…

A: Given that: Moles of salicylic acid used = 0.0217 moles To calculate: Theoretical yield of the…

Q: GRAVIMETRIC DE TERMINA TION OF AN UNKNOWN SULFATE 1. In the procedure involving heating the BaSO4…

A: We know that, Mass percentage of sulfate = ( Mass of sulfate / Mass of sample ) ×100

Q: 3. In an experiment in lab, a hydrated CuSO4 salt was heated and thus dehydrated. Determine the %…

A: As per our guidelines , we are supposed to solve only first question. Please resubmit other…

Q: Mass Salicylic Acid used 0.1498 g Mass Acetic Anhydride used 0.3417 g Mass filter…

A: Theoretical yield of aspirin can be obtained by determining the limiting reagent of the reaction.

Q: Upon reaction of 1.27 g of copper sulfate with excess zinc metal, 0.328g copper metal was obtained…

A: The given reaction is as follows: CuSO4(s) + Zn(s) → Cu(s) + ZnSO4(aq) The theoretical yield of the…

Q: Q. When the orgo students did the experiment, they weighed out 2.027 g of Salicylic acid and mixed…

A: Given that : Mass of salicylic acid = 2.027 g Molar mass of salicylic acid =138.12g/mol Molar mass…

Q: Part A Hydrobromic acid dissolves solid iron according to the following reaction: Fe(s) + 2HB1(aq)…

A: Given reaction: Fe(s)+2HBr(aq)→FeBr2(aq)+H2(g) Given data: The mass of Iron Fe=3.6 g. To find: Part…

Q: You dissolve 150.0 grams of a mixture of MgCl, and KCI in water, add a solution of excess AGNO3, and…

A: A balanced chemical reaction helps us to determine the quantity of product formed in a chemical…

Q: Given the mass of the starting material, show the calculations of the theoretical yield of the…

A: Sodium bicarbonate, NaHCO3 is unstable at high temperature and undergoes thermal decomposition to…

Q: When silver nitrate and sodium sulfate react, a precipitate forms. What mass of the precipitate is…

A: A)

Q: Your crucible has a mass of 30.074 g when empty, and does not change upon heating. You add some…

A: Mass Of crucible when empty = 30.074g Mass Of crucible plus solid iron = 32.860g Mass of iron =…

Stoichiometry

Stoichiometry is a chemical division that evaluates the quantitative content of the chemical process with the help of the reacting molecules or products taking part in the reaction. The term “stoicheion” in “Stoichiometry”, is an old Greek term for "element" whereas “metron” means "measure".