- How would your value for the percentage yield be changed (increased, decreased, or remain the same) if:
a. you did not heat the product long enough to remove all of the water?
b. some of the product spattered out of the evaporating dish during heating?
c. After heating, you recorded 98.207 g instead of the actual 98.507 g" as the mass of the evaporating dish
+ watch glass + NaCl?
Want to see the full answer?
Check out a sample Q&A here
Related Chemistry Q&A
Find answers to questions asked by students like you.
Q: In lab, you add 2.074 g salicylic acid to a 125 mL Erlenmeyer flask, as listed in the procedure. You…
A: The ratio of "actual yield" and "theoretical yield" gives the percent yield of any particular…
Q: Analysis of Fat in Potato Chips Video Experiment: A sample of potato chips weighing 6.18 g was…
A: Hello. Since your question has multiple parts, we will solve the first question for you. If you want…
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: mass of cuso4: 7.00g. mass of fe: 2.00g. mass of filter paper: 1.50g. mass of cu solid: 2.16g. mass…
A: Mass of Cu(s) = 2.16 g Mass of CuSO4 = 7.00 g
Q: What is the gravimetric factor when the desired substance is Cr2O3 and the weighed substance is…
A: The gravimetric factor when the desired substance is Cr2O3 and the weighed substance is PbCrO4 is 1…
Q: The ingredients in herbicides and pesticides must be carefully monitored. Arsenic in a pesticide…
A: Gravimetric factor: ratio of grams of element forms and grams of compound which used to form…
Q: Aspirin yield You record the following data during the Qualitative and Quantitative Characterization…
A: Acetyl salicylic acid is also called as Aspirin Aspirin is used as an analgesic and antipyretic drug…
Q: John and Eli do a reaction with the goal to prove the law os conservation of mass. In the reaction,…
A: According to law of conservation of mass, the mass of the reactants is equal to the mass of the…
Q: The hydrated salt, MY3-xH0, was heated strongly in a crucible to remove all the water molecules of…
A: Hydrate = MY3.xH2O Salt = MY3 (MM = 230.99 g/mol) The data for this experiment are given in the…
Q: A 103.0 mL aqueous solution of 43.0 mM COCI2 is combined with 594.0 mL of aqueous 74.0 mM K3PO4. If…
A: Click to see the answer
Q: Calculate the %Yield of the 4 fractions based on the following numbers. Compare these numbers with…
A: Since you have asked a question with multiple sub-parts, as per our company guidelines we will solve…
Q: 4. An aqueous solution of sodium hydroxide contains 20 % NaOH by mass. It is desired to produce an…
A: Click to see the answer
Q: A student carrying out an experiment was in a hurry to finish. He decided to omit the centrifugal…
A: Centrifugation is the technique of applying of gravitational force on the sample or mixture to…
Q: Part B. Table 2 Determining the concentration of a NaCl solution
A: Click to see the answer
Q: 1. balanced chemical reaction 2. % composition by mass of each compound 3. mass to mass…
A: Given: mass of cream of tartar = 1.5 kg = 1500 g mass of sodium carbonate monohydrate = 2.5 kg =…
Q: 2. If, in another student's reaction, all of the Al(OH)3 did not dissolve but remained in the beaker…
A: All of the Al(OH)3 did not dissolve but remained in the beaker and ended up on filter paper, will…
Q: A sample of potassium bicarbonate (KHCO3) was reacted with HCl to produce KCl. The followin data was…
A: The balanced chemical equation for the reaction between HCl and KHCO3 is:
Q: Mass of Na2CO3.H2O (g) = 2.12g (g) Mass of the CaCl2.2H2O (g) = 1.98g Mass of the top funnel +…
A: Given data, Mass of Na2CO3.H2O=2.12gMass of CaCl2.2H2O=1.98gMass of CaCO3…
Q: 1) Answer the following question related to gravimetric analysis. This question continues on the…
A: Hello. Since you have posted multiple questions and each question has multiple sub-parts, the first…
Q: 10. According to the literature, when the product AMEVIVE (alefacept) is reconsti- tuted with…
A: In this fir of all determine the amount of alefacept in an injection of 0.6 ml. The amount…
Q: What is the correct volume of 2.5 M PhMgBr in THF is needed to completely react with 1.5 mL of…
A: The quantitative relationships (moles/volume/mass) of different reaction's components is derived…
Q: 4 Liters of an 80% (by weight) Hydrochloric Acid Solution with specific gravity=1.1 reacted with 1.5…
A: Click to see the answer
Q: Preparation of 0.25N HCl Objective: Apparatus and Materials: Procedure: Compute for the volume of…
A: 0.25N HCl 1 litre N stands for normality To prepare normal solution, we take gram equivalent weight…
Q: (d) the grams of NazS04 that can be obtained from 26 ml of 0.057 M NAOH |g Na2s04 the tolerance is…
A: Click to see the answer
Q: 6. In the molecular weight determination by the Dumas method, as illustrated below, several grams of…
A: The mass of the bulb filled with vapor was 36.127 g;The mass of the empty (evacuated) bulb was…
Q: 6. In the molecular weight determination by the Dumas method, as illustrated below, several grams of…
A: The mass of the bulb filled with vapor was 36.127 g;The mass of the empty (evacuated) bulb was…
Q: There are 30 liters of 0.25 M H3PO4(aq) and 10 liters of 18 M H2SO4 in total (l). Meanwhile, 30 kg…
A: Given: Volume of H3PO4 solution = 30 L Concentration of H3PO4 = 0.25 M Volume of H2SO4 solution = 10…
Q: A student investigated the stoichiometry of the nickel(ii) nitrate sodium sulfide water system using…
A: Click to see the answer
Q: The most common technique used in laboratory to determine the molar mass of a volatile liquid is.?…
A: Introduction: A volatile liquid is one that evaporates or vaporizes quickly at room temperature .…
Q: 6. In the molecular weight determination by the Dumas method, as illustrated below, several grams of…
A: The mass of the bulb filled with vapor was 36.127 g;The mass of the empty (evacuated) bulb was…
Q: Sulfur – yellow powder with a strong and somewhat unpleasant odor has anti-inflammatory, astringent,…
A: Given: Mass of soap sample burned = 3.130 mg. Concentration of NaOH used = 0.01530 M And volume of…
Q: A hydrated barium hydroxide compound is heated to remove all the water of hydration. The mass of…
A: Suppose, number of water molecule present in the hydrated compound is x Molecular weight of barium…
Q: Active Ingredient Satignette Salt 1 kg cream of tartar and Raw Materials Actual Yield Formulation…
A: Given that - Mass of cream of tartar = 1 kg = 1000 g Mass of sodium carbonate monohydrate = 2 kg =…
Q: What is the gravimetric factor when the desired substance is Cr2O3 and the weighed substance is…
A: In the given question we have to calculate the gravimetric factor. The general formula for…
Q: What is the resulting molarity of LIOH after dilution (but BEFORE any possible chemical reaction) if…
A: As per given data, Volume of LiOH = 2.28 X 101 ml Molarity of LiOH = 9.020 X 10-1 Volume of HCl =…
Q: Aspirin yield You record the following data during the Qualitative and Quantitative Characterization…
A: Click to see the answer
Q: The hydrated salt, MY3-XH2O, was heated strongly in a crucible to remove all the water molecules of…
A: Mass of hydrated salt is equal to 35.57 – 30.29 g = 5.28 g. Mass of anhydrous salt is equal to 34.57…
Q: 2.027g of Salicylic acid is weighed and mixed it with excess acetic anhydride. (Show ALL steps and…
A: Given: Mass of salicylic acid = 2.027 g Known: Molar mass of salicylic acid =138.12g/mol Molar mass…
Q: Calculate the percent composition of sand in the mixture using the mass of the recovered sand…
A: Hello. Since you have posted multiple questions and not specified which question needs to be solved,…
Q: For the preparation of Aspirin calculate limiting factor, theoretical yield calculations, percent…
A: Click to see the answer
Q: In synthesizing aspirin, a student used 5.324 g of salicylic acid and excess acetic anhydride.…
A: When salicylic acid reacts with acetic anhydride in presence of an acid it forms acetyl salicylic…
Q: After the experiment, a student decides to dispose of their excess Mg safely by reacting it with…
A: Click to see the answer
Q: Given the balanced reaction, initial GRAMS of each reactant and product, and the molar masses of…
A: The stoichiometry of the balanced chemical equation states that two moles of C2H6 react with seven…
Q: Consider the reactions 3C(graphite) + 4H2(g) → C3H8(g) AH = -103.8 kJ C(graphite) + O2(g)→ CO2(g) AH…
A: To get the desired reaction ∆H , we have to adjust the given reaction . When we adjust the given…
Q: Mass of sample (g ) 1.94g Mass of empty crucible (g) 84.248g Crucible and sample after heating…
A: Mass of sample = 1.94 g Mass of empty crucible (g) = 84.248 g Crucible and sample after heating (g)…
Q: -To balance the reaction, what must be the coefficient of I₂O₅? * Your answer -To balance the…
A: Since you have asked multiple question, we will solve the first question for you. If you want any…
Q: solution is prepared by dissolving 102 g of NaCl in 924 g water to make a total solution volume of…
A: Click to see the answer
Q: in a pure sample of blue vitriol, there is a Cu content of 25.45% what is the new percentage of Cu…
A: We have to calculate the percentage of Cu in oven-dried blue vitriol
Q: Use 1 decimal point for all atomic masses. 2.00 g of H2(g) are reacted with 32.0 g of O2(g) by the…
A: The balanced reaction is written below.2H2 (g) + O2 (g) → 2H2O (g)The number of moles of H2 is…
Q: What is the gravimetric factor when the desired substance is Cr203 and the weighed substance is…
A: Click to see the answer
