What might be a reason you obtained a percent yield of less than/greater than 100% for the mixture

Q: What is the % by mass of a silver ring that has a mass of 12.0 g and contains 11.1 g pure silver?

A: Mass percentage of a compound represents the mass of solute present in a given mass of compound. It…

Q: The percent by mass of potassium in KOH is  The percent by mass of nitrogen in CH5N is %.

A:

Q: 1) When the sample is first put into the crucible and heated, the directions say to heat gently for…

A: We are authorized to answer one question at a time, since you have not mentioned which question you…

Q: After collecting your product after doing an aqueous reaction, you calculate a percent yield of…

A: The relation to calculate the % yield is shown below. %yield=practical yieldtheoretical yield×100

Q: How many particles are contained in 20.0 mole of NaCl? Type in answers without units, using…

A: Given: Moles of NaCl = 20 moles Avogadro's number is a specific numerical value which used to…

Q: Gaseous methane (CH,) reacts with gaseous oxygen gas (0,) to produce gaseous carbon dioxide (CO,)…

A: We have to calculate the percentage yield .

Q: Find the percentage oxygen by weight in KMnO4.

A: Percentage by mass – Formula is, This is formula for liquids. But for certain element present in a…

Q: •/. NaCl 1.5 Density as Measured 0.997709 g/mL Temperature Accepted value •/. error ? 22.0°C…

A:

Q: In the simple Michaelis scheme, the enzyme, E, is assumed to react as follows during the conversion…

A: Enzymes are biological catalyst. A catalyst is a compound that participates in a chemical reaction,…

Q: 4.21 x 1023 molecules Cach STARTING AMOUNT 4.21 x 1023 molecules CaCl2 x 72°F Mostly sunny X 6.022 x…

A:

Q: b) Mass of N2 produced when moles of K2O is produced. blank-blank-blank-conversion factor 1 blank -…

A:

Q: A student in lab needs to make a solution that is 6.00% by mass NaCl. If 175 g of NaCl is available,…

A:

Q: What would you multiply "grams of zinc " by to get the units "moles of zinc "? 65.4 grams Zn grams…

A:

Q: Liquid hexane (CH3(CH2)¸CH; ) reacts with gaseous oxygen gas (0,) to produce gaseous carbon dioxide…

A: We have to calculate the % yield.

Q: Make sure that you show all work with units and labels. Round your answers to the appropriate number…

A: In a chemical reaction reactant undergo chemical change to form products.  The chemical reaction in…

Q: How many moles of carbon dioxide can be produced from the complete combustion of 8.67 moles of…

A: Given :- number of moles of C2H6 = 8.67 mol  To calculate :- number of moles of CO2

Q: The weight of saturated NaCl was obtained by weighing the collected solid. Was this an accurate…

A: Mass percent is the mass of solute added in 100g of solution. mass percent = mass of solute mass of…

Q: -What are two possible reasons why percentage yield is different from 100%

A: There is a theoretical or the stochiometric yield. This yield is calculated using the reaction…

Q: C7H6O3 + C4H6O3  -> C9H8O4 + C2H4O2 what is the percent yeild when 79.0 g of C7H6O3 is added to an…

A: Given values- Weight of C7H6O3=79.0gm Actual yield= 86.1gm

Q: Why Percent Yield is Usually Less than 100%? List down four (4) possible reasons why percent yield…

A: Theoretical yield : Theoritical yield is the maximum amount of product that can be formed in a…

Q: Aqueous hydrobromic acid (HBr) reacts with solid sodium hydroxide (NaOH) to produce aqueous sodium…

A: In the given acid base neutralization reaction, NaOH is acting as a limiting reagent which will…

Q: Experiment: Preparation of Benzoic Acid Volume of Benzonitrile: 2.0 mL Volume of NaOH (50%): 50 mL…

A: The percentage yield of benzoic acid = (mass benzoic acid recovered experimentally / mass of…

Q: What is the % by mass of water in your hydrated copper (II) sulphate? Mass of just anhydrous…

A:

Q: Which of the following statement is correct about theoretical and percent yields? Select an answer…

A: Given statements are - a. A percent yield is always smaller than a theoretical yield. b. A…

Q: I need help finding the therotical yield and the percent yield by finding the limiting reagent based…

A: Density of benzaldehyde: 1.04 g/mL. 20% NaOH solution indicates 20 g of NaOH present in 100 mL of…

Q: A chemistry student weighs out 0.222 g of phosphoric acid (H,PO,), a triprotic acid, into a 250 mL…

A: Given that, 0.222 g of H3PO4 was dilute to 250. mL.Then, this was titrated with 0.0500 M of NaOH…

Q: Which of the following is the correct unit for equivalent weight? a)eq/mol b)eq/g c)g/eq d)mol/eq

A: The unit for equivalent weight is given below.

Q: HCl+NH3 >>>>> NH4 Cl 0.134 moles of HCl are reacted with 0.211 moles of NH3 When 0.134 moles of…

A: Answer:- This question involves the use of stoichiometry which involves the relationship between…

Q: Part 2: 33g Na₂SO4 Step 1: mass to moles Molar mass of Na₂SO4 = 33g Na₂SO4 + molar mass of Na₂SO4 =…

A: Given: Mass of Na2SO4 = 33 g Known: Molar mass of Na = 23 g/mol Molar mass of S = 32 g/mol Molar…

Q: A student in lab needs to make a solution that is 4.00% by mass NaCl. If 165 g of NaCl is available,…

A: 4.0% by mass NaCl means 4 g NaCl in a total of 100 g solution. (note it is g of total solution) So,…

Q: A student prepared benzil according to the experimental procedure using 2.58 g. of benzoin and 12 mL…

A: A question based on concentration terms. Using the balanced equation, theoretical yield, percentage…

Q: reactant controls the amount of product formed in a chemical reaction? A. excess reactant B. mole…

A: Since you asked multiple questions so as per Q&A guidelines of portal I solved first question…

Q: c) Mass of KNO3 decomposed when grams of K2O is produced. blank-blank-blank-blank- conversion…

A: Conversion factors = ? Decomposition Reaction of KNO3 is  4KNO3 ==> 2K2O + 5O2 + 2N2

Q: Use Factor Method in solving the problems:  Step 1. Using the following equation, determine the…

A: The objective of this question is to calculate the quantity of each ingredient required to make 1…

Q: A student weighs out 8.00g of fertilizer. After performing the experiment, the student obtains 5.85…

A: mass of fertilizer = 8.00 g mass of product obtained = 5.85 g actual % P = ?

Q: The percent yield should not be over 100%. True O False

A: Percentage yield is calculated from the actual yield and theoretical yield of product.  Percentage…

Q: With the correct amount of sig figs thank you!

A:

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".