Analysis: A. Use data from the data table to plot volume of lead II nitrate solution vs. height of precipitate formed. Create a line graph with each axis labelled. Title your graph. B. Using the graph, label the two distinct regions as A and B. Identify the excess reactant and the reactant which is completely consumed (limiting reactant) in each region.
Q: Which of the following chemical equations depicts an alkylation reaction? C6H6() + CH3Cl() →…
A:
Q: 1.Write the nuclear equation to represent beta particle emission by Pu-241 2. Write a nuclear…
A: (1) When Beta particle emittion take place, then atomic number of plutonium, Pu-241 changed into…
Q: Please sketch the titration curve of lysine. Then annotate X-axis, Y-axis, each pKa, PI and…
A: Here we are required to sketch the titration curve of lysine
Q: 2. What is the essential difference between a 1.0 mol/L solution of a weak acid and a 1.0 mol/L…
A: Since you have asked multiple questions, we will solve the first question for you. If you want any…
Q: Suppose that instead of plating copper on a strip of aluminum you used a strip of silver. Explain…
A: Given: Instead of plating copper on a strip of aluminium, you used a strip of silver.
Q: Write the half-reaction and calculate the electrode potential of a. a platinum electrode in 0.0566…
A: a. a platinum electrode in 0.0566 M K4Fe(CN)6 and 0.00813 M K3Fe(CN)6
Q: (d) Do you expect the pH of the pure water at 100 °C will be 7, lower than 7, or higher than 7? Give…
A: PH of the pure water at 100°C will be lower than 7.
Q: 5. CI NH3
A: Below attached file showing the details answer. All the best.
Q: 73. C✓ 73. Provide the final product of the following reaction. OMe heat + Me₂NOMe ? OH Me OMe NMe…
A: Eschenamoser-Claisen Rearrangement: Claisen rearrangement reaction employing allylic alcohols and…
Q: 8) For each of the compounds below, draw a rough estimation of its expected ¹H NMR spectrum. CI Br…
A: 8. Assign a,b,c... to non equivalent hydrogens and calculate the splitting pattern then draw the nmr…
Q: Period ale to eldat bibohaq to train Characteristics of element belong to every period. Give at…
A: Below attached file showing the details answer. All the best.
Q: 4. Draw as a polygon structure one of the following steroids: Estradiol…
A:
Q: Problem to be solved and to be checked using Boyle's Law equation: In a J-shaped tube filled with…
A:
Q: One vial of COVID-19 vaccine, when thawed, contains 0.45 mL of solution. Before it is administered,…
A: Given: Concentration of NaCl = 0.154 M Volume of vaccine = 0.45 mL = 0.00045 L…
Q: Iced) 202 02-2022/Paper-1 Consider the following Aldoses/ketoses. Which of them can give same…
A: Carbohydrates react with excess phenylhydrazine to form osazone. This reaction is used for the test…
Q: iv) NGÔM, HO Heat
A: Note : Retro aldol followed by intramolecular aldol condensation. (For mechanism, see below).
Q: compound containing Sodium, Chlorine, and Oxygen is 25.42% Sodium by mass. A 3.25-gram sample gives…
A:
Q: inf 9. 10. NaCl + _0₂ Given: NaCIO, → What is the mole ratio of NaCl to O₂? If 2.6 moles of O₂ are…
A:
Q: If one half-life for your coin flips represents 30 years, what amount of time has passed when only…
A:
Q: (f) Why alternating current is used for conductometric measurements?
A: Conductometric titrations :- It is a qualitative method used for determining the concentration of an…
Q: Which of the following describes an endergonic reaction? is nonspontaneous is…
A: The endergonic reaction means that ∆G > 0
Q: Arrange the carboxylic acid D Highest Reactivity 1 EA 2 IB 3 TE 4 ED 5 C Lowest Reactivity 23 Which…
A: Note : Strong acid produces weakest bases. weak bases are good leaving groups ( see below). 23.…
Q: Arrange the following in increasing order of boiling point. Give reason. Methylamine,…
A: Given, a). Arrange the following in increasing order of boiling point. Give reason. Methylamine,…
Q: 25 Rank by relative basicity. "1 "→ strongest base -NH₂ -NH₂ -NH₂ O₂N "5" weakest ban NH₂ Me O -NH₂…
A:
Q: Acetylsalicylic acid, HC9H7O4 (MW: 179.15g/mol), is the active component in aspirin. This acid is…
A: NOTE: The molar mass of Acetylsalicylic given is misprinted. It will be 180.15 g/mol. Given: Mass of…
Q: A student researcher performed a chromatographic separation of caffeine and aspartame. The retention…
A:
Q: chemist working in a hospital clinical laboratory obtained the following values for uric acid in…
A:
Q: Use Reaction 1. Determine the mass, in grams, of chlorine gas consumed (with excess H₂) when 1,479.0…
A:
Q: Chemistry Draw a mirror image for each compound.label each compound as chiral or achiral . use…
A: chiral molecule nothing but the central carbon attached to four different groups or atoms called…
Q: 1. At high temperatures, sulfur combines with iron to form the brown-black iron (II) sulfide: Fe(s)…
A: Substance which is present in low amount consumes firstly during reaction are called as limiting…
Q: 1. Predict whether the following processes are spontaneous, are spon in the reverse or are in…
A: Spontaneous process occurs by its own while Non-spontaneous process required external source to…
Q: Quantitative analysis student Jon analyzed an ore sample for its lead content and obtained a mean of…
A: Given: obtained value- 4.75% certified value- 4.50% To find: (a) percent error (b) percent accuracy…
Q: What is the mass (in g to two decimal places) of copper(II) hydroxide in a 5.325 L saturated aqueous…
A:
Q: 10. How many molecules are in a 1.7 gram iron nail? 11. How many molecules are in a 0.35 gram piece…
A: (10) Given that - Mass of iron = 1.7 g From mole concept one of any Substance equal to - 1 mole…
Q: How many pi electrons does this moleate have that are delocalized in a closed cyclic array ? :o:
A: The compound given is,
Q: Fe3+ from Cr3+. Explain the chemistry of the separation.
A: We have already read salt analysis in our lower classes, where we learnt to separate each class of…
Q: At 338 K, the reaction X(g) →Y(g) has a Kc of 1.4. The scenes represent different mixtures at 338 K,…
A: The reaction given is X (g) ⇌ Y (g) The value of equilibrium constant, Kc = 1.4 Reactant, X =…
Q: (c) To study the kinetics of iodination of acetone, why starch is used as an indicator just before…
A: Here we are required to provide the reason why starch indicator is not used at the beginning rather…
Q: how can you use the physical properties of melting solubility and conductivity to classify ionic and…
A: Ionic compounds have high melting point due to strong intermolecular force of attraction between the…
Q: Provide the missing starting material or reagent(s) for each reaction. mCPBA O'Pr 'Et a. f. OH OH…
A: a. (E)-2-pentene reacts with mCPBA gives epoxide. b. (Z)-2-pentene reacts with mCPBA gives epoxide.…
Q: Give a complete explanation. Q.) What is a suppressor column and why is it employed?
A: Ans. Suppressor column: A Suppressor is a device placed between the column and the detector, and…
Q: C. In the buffer zone between 20 and 30 mL of titrant added the pH doesn't change very much. How…
A: The resistance in the change in pH of the solution during the buffer range is needed to be explained…
Q: vill be the final temperatur of the two systems? 400. K 250. K
A: Using energy conservation Heat loss by sample A = heat gain by sample B (m.c.□T)A = (m.c.□T)B
Q: how do i know if my measurement is significantly different from the exact value, at least 2…
A: Given: Exact value : 0.25 Average = 0.223 Standard deviation = 0.025 RSD = 11.2 %
Q: 2. Calculate the AH for the reaction: N₂O4 + CO → N₂O + CO2
A: Given : The enthalpy formation reaction we get, N2O4 + CO → N2O + CO2 Find : To…
Q: (Ksp) The soubility of calcium phosphate, CA3(PO4)2, IS 7.1 x 10-7 mole liters ndar What are the…
A: The solubility of calcium phosphate (Ca3(PO4)2 ) = 7.1 × 10-7 moles/litre. Molar concentration of…
Q: What volume in liters does 0.137 g of O₂ occupy at 27.2 °C and 755 torr? Assume the standard…
A:
Q: If a 3m^3 of gas initially at STP is placed under a pressure of 2 atm the temperature of the gas…
A:
Q: Estimate the boiling point of an unknown substance in deg C if the latent heat of vaporization of…
A: Answer: Relation between Boiling point, enthalpy of vaporization and entropy of vaporization is…
Q: Find the number of octet electron of the following compound PCI 3 CHCI 3 CO
A: Below attached file showing the details answer. All the best.
Step by step
Solved in 2 steps with 1 images
- TOPIC: GRAVIMETRY SHOW THE SOLUTION The mercury in a 0.7152-g sample was precipitated with an excess of paraperiodic acid, H5IO6, according to the following reactions:5 Hg+2 + 2 H5IO6 ---> Hg5(IO6)2(s) + 10 H+The precipitate was filtered, washed free of precipitating agent, dried and found to weigh 0.3408-g. Calculate the percentage of Hg2Cl2 in the sample. Molar Masses: Hg5(IO6)2 = 1448.75 Hg2Cl2 = 472.09 Answer: 38.82% Hg2Cl2 An iron ore was analyzed by dissolving a 1.1324-g sample in concentrated HCl. The resulting solution was diluted with water, and the iron (III) was precipitated as the hydrous oxide Fe2O3·xH20 by the addition of NH3. After filtration and washing, the residue was ignited at a high temperature to give 0.5394 g of pure Fe2O3. Calculate (a) % Fe, and (b) % Fe3O4 in the sampleMolar Masses: Fe2O3 = 159.69 Fe = 55.847 Fe3O4 = 231.54 Answer: 33.32% Fe and 46.04% Fe3O4To calculate the unknown concentration of a chemical in a solid sample, 4 different calibrationcurves were plot using 4 different methods. Which of the following method is considered asacceptable? a. Method 4, R? = 0.998b. Method 1, R2 = 0.650c. Method 2. R' = 0.890d. Method 3, R' = 0.1697. Consider a1Msolution ofNa3AsO4. Write the charge and mass balance equations for this system. (please type answer not write by hend)
- Calculate the maximum mass (in g) of AgCl lost in a chloride analysis as a result of washing the of silver chloride with 130 mL of water at room temperature. (Note: Ksp for silver chloride is 0.000000000160. Pay attention to the sig.fig. in your calculation. Keep three sig.figs. in the answer.)A sample of freshly precipitated and filtered silver chloride weighs 459.0 mg. If 1.00 % of the silver chloride becomes photo decomposed, what is the precipitate’s weigh?What is the minimum concentration of Ca2+ (M or mol/L) required to form a precipitate with a 0.025 M Na3PO4 solution? (Ksp for Ca3(PO4)2 is 1.0 × 10-26) Enter your answer as scientific notation with the correct number of sig figs, without any units. Use the format #e#
- 3I- + OCl- + 2H+ ----> I3- + Cl- + H2: A 25.00 ml sample of liquid bleach was diluted to 1000 ml in a graduated flask. A 25 ml portion of the diluted sample was pipetted into an Erlenmeyer flask and treated with excess KI to oxidize OCl- to Cl- and I3- was produced at the end of the reaction. The released I3 was titrated with 0.09892 M Na2S2O3 and 8.96 ml was spent to reach the turning point besides the starch indicator. What is the percent by weight/volume of NaOCl in the bleach sample? (NaOCl:74.44 g/mol)What is the concentration of ions in the soil solution after fertilizer application? Suppose that 122 pounds of K+ were applied per acre, then a gentle rain soaked the top 10 inches of soil to field capacity, which for the given soil was about 16% water by volume. If the K+ was applied as KCl, it is plausible that it all dissolved and distributed relatively uniformly with the infiltrating water. If so, then what was the K+ concentration in the soil solution in mol K+/L solution? Note that the volume can be computed like we do for an acre-furrow-slice (AFS), as area times depth. This is going to be a relatively small number, so please report your answer in mol K+/L solution to at least 5 decimal places.Ca2+ in a drinking water sample was analyzed by the following reactions below: Ca2+(aq) + C2O42-(aq) → CaC2O4 (s) → CaO(s) + CO(g)+ CO2(g) First an excess of C2O42- was added to 0.10 L of the Ca2+ water sample. Then CaC2O4 was precipitated, which was demcomposed into CaO with filtering and some heat. The CaO was measured to be 5.61 mg. What is the concentration of Ca2+ in the original water sample? The MW of CaO is 56.1 g/mol. 0.0100M 0.0010 M 1.00 M 0.100 M The partition coefficient (K) of methylamine (CH3NH2) is 4.50, preferring the organic layer over the aqueous layer in this extraction. The Ka of methylammonium (CH3NH3+) is 2.00 x 10-11. If 10 mL aqueous methylamine solution at pH 11.0 is extracted with 20.0 mL organic solvent, what is the fraction of solute remaining in the water (q)? HINT: methylamine is a weak base. 14.3% 10.0% 18.2% 81.8%
- A student was tasked to perform gravimetric analysis of a soluble sulfate. His unknown sample weighed 0.7543 g. The sample underwentprecipitation using BaCl2 and was digested for overnight. The precipitate was then filtered off to obtain white crystalline precipitate that was collected inan ash less filter paper. In performing constant weighing, he obtained a crucible mass that is 29.9442 g. After burning his samples inside the crucible,the obtained mass was 30.3375 g. Compute for the theoretical % SO3 obtained by the student and the theoretical mass (g) of SO3 that should be obtained by the student using his weighed sampleA student was tasked to perform gravimetric analysis of a soluble sulfate. His unknown sample weighed 0.7543 g. The sample underwentprecipitation using BaCl2 and was digested for overnight. The precipitate was then filtered off to obtain white crystalline precipitate that was collected inan ash less filter paper. In performing constant weighing, he obtained a crucible mass that is 29.9442 g. After burning his samples inside the crucible,the obtained mass was 30.3375 g.29. Compute for the mass (g) of BaSO4 from the experiment.A) 0.3933B) 0.3393C) 0.3133D) 0.3951E) 0.359130. Compute for the experimental mass (g) of SO3 in grams obtained by the student.A) 0.1439B) 0.1349C) 0.1943D) 0.1394E) 0.359131. Compute for the experimental % SO3 obtained by the student.A) 73.21B) 56.33C) 17.89D) 56.89E) 72.8032. Compute for the theoretical % SO3 obtained by the studentA) 0.3933B) 56.37C) 17.33D) 17.89E) 0.425233. Compute for the theoretical mass (g) of SO3 that should be obtained by the student…How would I solve Problem 4? I have the excel graph as provided. Need to get the %Mn I have some small idea but think is wrong... would be... %Mn = 500mL * 1molMn/ g MnO4 * 1molMn/1molMnO4- * gMn/1molMn * 100%/SampleMassg