a student collected 12.3 g of PbI2 and the theoretical yield is 12.9 g, what is the percent yield?

Q: copper sulphate (CuSo4) with a concentration of 0.00095 mol l-1. If they wanted to prepare one litre…

A: Here, Molecular weight of CuSO4= RAM(Cu)+ RAM(S)+ 4×RAM(O).…

Q: Paracresol (p-cresol) is used as a disinfectant and in the manufacture of herbicides. A 0.4039 g…

A: Recall the data from the question Mass of sample=0.4039 g mass of carbon dioxide=1.1518 g mass of…

Q: How many milligrams of iron(I) chloride result when 15.5 mg of iron is reacted with an excess of…

A: Since you have posted multiple questions, we are entitled to answer the first only. Please repost…

Q: For the following reaction, 41.2 grams of iron are allowed to react with 21.0 grams of oxygen gas.…

A: Given,the reaction:iron (s) + oxygen (g)  iron(III)oxide (s)mass of iron = 41.2 gmass of oxygen =…

Q: 8. Consider the following reaction: 2Na(s) + Cl₂ (g) 2NaCl(s) a) If 10.0 g of each of the reactants,…

A:

Q: Morphine (C₁₇H₁₉NO₃) is a painkiller in the opiate family. A sample of morphine was discovered that…

A:

Q: percent yield

A:

Q: For the following reaction, 15.1 grams of chlorine gas are allowed to react with 45.4 grams of…

A:

Q: Iodine is prepared both in the laboratory and commercially by adding Cl, (g) to an aqueous solution…

A: Given: Mass of I2 produced = 93.0 g Known: Molar mass of I2 = 253.80 g/mol Molar mass of NaI =…

Q: The yellow precipitate, barium sulfate (BaSO4), is formed when sodium sulfate (Na2SO4) reacts with…

A: Given: Mass of sodium sulfate = 12.50 g Mass of barium bromide = 28.0 g Actual yield of barium…

Q: A student heated the 3.572 g sample of chromium (III) chloride on a hot plate until no more water…

A: Given that, Mass of hydrated chromium (III) chloride (CrCl3•xH2O) = 3.572 g  [* x = number of moles…

Q: Menthol is a flavoring agent extracted from peppermint oil. It contains C, H, and O. In one…

A: no of moles=mass/molar mass General Empirical formula  Cx H 2x Oy

Q: When hydrobromic acid reacts with chlorine, bromine and hydrochloric acid are obtained: 2 HBr (aq) +…

A: We have to calculate the theoretical yield and percentage yield.

Q: ne maximum mass of H, O that can be produced by combining 65.1 g of cach reactant? II, (g) + 50,(4)…

A: Molar mass of NH3 = 17.0 g Molar mass of O2 = 32 g 4×17 g NH3 produced = 6×18 g H2O 65.1 g NH3…

Q: A mixture is 19.9% NaCl, 21.0% CaCl2, and 59.1% NaBr. What mass of the mixture contains 0.485 moles…

A: mass of the mixture that contains 0.485 moles of chloride ions moles of sodium ions present in 24.0…

Q: Upon reaction of 1.27 g of copper sulfate with excess zinc metal, 0.239 g copper metal was obtained…

A: The relation to calculate the percentage yield is shown below. % yield=actual yield theoretical…

Q: Calculate the theoretical yield of MgCl2 in moles when 0.326 grams of MgO are reacted with 30.4 mL…

A:

Q: The aluminum in a 0.767 g sample of an unknown material was precipitated as aluminum hydroxide,…

A: given: mass of sample of unknown material =0.767 g mass of aluminium oxide produced = 0.143 g…

Q: Consider the following reaction: UO₂ (s) + HF (aq) → UF4 (s) + H₂O (1). You mix together 20.0 mL of…

A: Theoretical yield is the maximum yield of the product that can be obtained in a chemical reaction.…

Q: Methanol, which is present in mentholated cough drops, is an organic compound containing only C, H…

A: Combustion is a high-temperature exothermic redox chemical reaction between a fuel and an oxidant,…

Q: 2 Na(s) + Cl₂(g) Ang = gas 2 NaCl(s) mol

A: We have to calculate ∆ngas

Q: The combustion of liquid ethanol (C2H5OH) produces carbon dioxide and water. After 4.62 mL of…

A: The balanced reaction of ethanol combustion is given as - C2H5OH + 3O2 -----> 2CO2 + 3H2O It…

Q: Morphine (C₁₇H₁₉NO₃) is a painkiller in the opiate family. A sample of morphine was discovered that…

A: Given: When morphine undergoes combustion, carbon dioxide is produced. Mass of mixture            =…

Q: Al4C3 (s)    +  12 H2O (l)     →   4 Al(OH)3 (s)   +  3 CH4 (g) In this reaction, 0.3455 mol of…

A:

Q: 4. In the reaction of Zn with HCI, 140.15 g of ZNCI2 was actually formed, although the theoretical…

A: A balanced reaction helps us to determine the amount of reactants being consumed and the amount of…

Q: by the reaction of hydrochloric acid with manganese(IV) oxide. HCl(aq) + MnO,(s) - MnCl, (aq) + 2…

A: 4HCl (aq) + MnO2(s) ----> MnCl2(aq) + 2H2O (l) + Cl2(g) Mass of HCl = 44.1 g Mass of MnO2 = 43.7…

Q: Nitrogen gas, N2, can be prepared by passing gaseous ammonia, NH3, over solid copper(II) oxide, CuO,…

A:

Q: Suppose a student starts with 2.4319 g of a sand mixture and separates the components into 1.3012 g…

A: percent of SiO2 in the starting mixture =    =Mass of SiO2 × 100/ Total Mass of the mixture =…

Q: Sodium hypochlorite is the active ingredient in most household bleach products. One method of…

A: Given balanced equation: Cl2 (g) + 2NaOH (aq) → NaOCl (aq) + NaCl (aq) + H2O (l) Given that 50.0 g…

Q: Calculate the theoretical yield of MgCl2 in moles when 0.311 grams of MgO are reacted with 30.0 mL…

A: Mass of MgO = 0.311 grams  Volume of HCl =  30.0 ml  Molarity of HCl = 1.04 M  Theoretical yield of…

Q: A sample of limestone and other soil materials was heated, and the limestone decomposed to give…

A: We know that Molar mass of CO2=44g/mol Mass of CO2=2.14g Moles of CO2=MassMolar mass…

Q: A 0.3459 g tablet that contains bicarbonate generates 1.24 x 10−3 moles of CO2. What is the percent…

A: Given information,    Mass of tablet is 0.3459 g    Moles of CO2 is 1.24 x 10−3

Q: A sample of a substance (containing only C, H, and N) is burned in oxygen.3.382 g of CO2, 2.307×10-1…

A: To calculate the empirical formula, it is required to calculate the amount of carbon, hydrogen and…

Q: percent yield?

A:

Q: What is the concentration (molarity) of a solution created by dissolving 83.7 grams of Be(NO3)2 to…

A: Given that, Amount of Be(NO3)2 dissolved w = 83.7 g Molar mass of Be(NO3)2   ,Mw   = 133.022 g/mol…

Q: A manufacturing process has a calculated yield of 2.87 kg of lithium hydroxide based on the reaction…

A: The objective of the question is to find the actual yield of lithium hydroxide from a manufacturing…

Q: Consider the copper thermite reaction, a reaction between two solids that can be initiated with…

A: Here we are required to find the chemical formula or elemental symbol for the limiting reactant and…

Q: Mg + 2HCI -> MgCl2 + H2 Determine the amount of magnesium required to produce 5.5 x 10^24 molecules…

A: 1 mole = 6.022×1023 [Avogadro's number ] The mass of one mole of atoms of an element is called its…

Q: Question 25 of 97 DDT was an insecticide used to prevent mosquito borne diseases. Due to the harmful…

A: the relation between the quantity of reactant used and product formed can be done stiochiometrically

Q: For the following reaction, 58.6 grams of potassium hydroxide are allowed to react with 37.9 grams…

A:

Q: What is the theoretical yield, in grams, of aspirin ( C 9 H 8 O 4 ), which has a molar mass of…

A:

Mole Concept

Mole concept is a method to determine the amount of any substance that consists of some elemental particles using a grouping unit called ‘mole’. The mole concept enables one to handle the large amount of small elementary particles. The mole concept can be used in many calculations related to mole calculation, molar amount, mole ratio, and so on, which are significant in chemistry.