8) Two different analytical methods are compared for determining Ca. The following are two sets of data. Set 1 Set 2 155.779 155.784 155.787 155.787 155.813 155.765 155.781 155.793 i. Determine the mean and the standard deviation in Set 1. ii. Calculate the 95% confidence limit for data in Set 1. ii. Identify a possible outlier in Set 2. Use the Q-test to determine whether it can be retained or rejected at 95% confidence level.

Q: Consider the electrolysis of zinc(II) bromide. Determine the product at the cathode and the product…

A: * Electrolysis is process  of deposition of metal by     passing electrolysis . * cathode is…

Q: se the statements that are correct. ect all that apply.) Copper metal can be oxidized by Ag+. In a…

A: 1) copper metal can be oxidised by Ag+

Q: If the weight of calcium oxalate is 2g and weight of ammonium oxalate is 0.15 g then te percentage…

A: Given that Weight of  calcium oxalate (CaC2O4) = 2g  Weight of  ammonium oxalate ((NH4)2C2O4) = 0.15…

Q: verage 4H--CI + 02 – 2H–0–H + 2 C-CI Data: дН (Н-С) 3 431 kj/mol дН (0-Н) - 463 k)/mol %3D AH…

A: Given reaction, 4 H--Cl + O2 → 2H-O-H + 2Cl-Cl ∆H = Bond energy of reactant - bond energy of…

Q: Given :           (1) 2NF3 + 2NO  → N2F4  + 2ONF     ∆H= -82.9 kJ           (2) NO + ½ F2  → ONF…

A: Calculate the value of ∆H for the reaction:    2NF3 + Cu → N2F4    +  CuF2              ∆H = ?

Q: 3+ cation, the energies of the valence d orbitals on When a certain strong-field ligand forms an…

A:

Q: Given below is the Haworth structure of a stereoisomer of maltose. Which of the following names…

A: Maltose: Maltose is a disaccharide made up of two alpha D glucose in which C1 of first glucose unit…

Q: What mass of precipitate (in g) is formed when 20.5 mL of 0.300 M Ni(NO₃)₂ reacts with 23.5 mL of…

A:

Q: e reaction rate law applied to the reaction aA + bB → AB gives the expression a. roc[A]°[B]*[AB] b.…

A: For the given reaction aA + bB → AB

Q: Calculate the pH at 25 °C of a 0.53M solution of pyridinium chloride (C5H,NHC1). Note that pyridine…

A:

Q: The specific heat of nickel is 0.444 J/g 0C. If 50 J of heat is added to 32.3 g sample of nickel at…

A: Given data  The specific heat of nickel, csp =  0.444 J/g 0C. The amount of heat added, q = 50 J…

Q: At STP a gas occupies a 34.9 kiloliter balloon. How many mol of the gas must be in the balloon? mol

A:

Q: The preparations of two aqueous solutions are described in the table below. For each solution, write…

A:

Q: A gas occupies a volume of 4.50 L at 760.0 mmHg at a temperature of 25°C. What would be the new…

A: Given,  The volume of a gas at 760.0 mmHg pressure is 4.50 L, the volume of a gas at 200.0 mmHg…

Q: Which one of the following structures is (S)-(E)-hex-4-en-3-ol? OH A) OH B) OH C) D)

A: 1. Select the principle carbon chain 2. Numbering 3. Naming (prefix + word root + suffix)    For…

Q: Draw the trans isomer of the octahedral [FeBr, (CO), complex.

A: ->In complex compound trans iosomer is isomer in which similar groups are on opposite sides (at…

Q: The experimental rate law is: A[I,] = [A] A[I,] k[Fe(CN), ][I][Fe(CN),“ ] [B] At k[Fe(CN), F[I…

A:

Q: Part A You wish to prepare an HC2H3O2 buffer with a pH of 5.14. If the pK of is 4.74, what ratio of…

A:

Q: CH3 CH3 H2O CH OH CH ОН CH `CH3 Acetic acid Isopentyl alcohol Isoamyl alcohol

A:

Q: final molarity of chloride ani

A:

Q: The following table is the data table recorded in the lab for the reactions listed on in your VCL…

A:

Q: A certain liquid X has a normal freezing point of -5.80 °C and a freezing point depression constant…

A: ★ Answer : 6.6 g Ba(OH)2 was dissolved in solution.

Q: ty due to the radioactive decay of the carbon-14 in a tiny sample of an artifact made of wood from…

A: Answer: the half life carbon -14 is = 5.73 × 103 years.  Activity of the sample in initial( Ao)=…

Q: provide the complete reaction mechanism for each of the following steps shown in the figure

A: Blanc reaction is also called "Chloromethylation" of the benzene ring by treating with fomaldehyde…

Q: Label the acid, base, conjugate acid, and conjugate base in these acid-base equilibria: a. H;CN + HF…

A: Concept:  Conjugate Acid and conjugate base: An acid and a base which differ only by the presence or…

Q: Equal volumes of two monoprotic acid solutions (A and B) are titrated with identical NaOH solutions.…

A: Concept:  Acid base titration: The strength of an acid solution is determined by titrating it…

Q: ertain zinc-copper cell, + Cu²^(aq) → Zn²“(aq) + Cu(s) n concentrations are (Cu2*] = 0.0346 M an is…

A: From the cell potential data E°zn = -0.76 V E°Cu = 0.34 V E°cell = E°c - E°a     = 0.34 - (-076) =…

Q: The great French chemist Antoine Lavoisier discovered the Law of Conservation of Mass in part by…

A: The decomposition of mercury(II) oxide (HgO) produces liquid mercury and gaseous dioxygen.

Q: solution of this acid is found to have a pH of 2.607. Based on the table below, what most likely is…

A:

Q: The rate constant of a certain reaction is known to obey the Arhenius equation, and to have an…

A: Arrhenius equation

Q: 4. Fe reacts with steam at high temperature, forming hydrogen and metal oxide 5. F reacts violently…

A:

Q: need help to draw a 4-Nitrobenzyl Alcohol ir spec digram   and also for it need to draw…

A:

Q: Exercise 23. Give the products of the following substitution reactions. For every reaction, show…

A:

Q: 2. The following data was obtained from the reaction: NH4 + (aq) + NO2 (aq) → N2(g) + 2H2O(1)…

A: From the given data we have to find the rate law, the rate constant and the initial rate of the…

Q: 2. Rank the following species in order of INCREASING nucleophilicity (1= least nucleophilic a. "CN…

A: To think about the Nucleophilicity one must know about the nucleophile.  Nucleophile- Nucleophile is…

Q: Test Data:    Filter Paper Number Metal Strip Mass of Filter Paper Mass of Filter Paper with…

A:

Q: I Revie Part A You may want to reference (Pages 740 - 751) Section 17.2 while completing this…

A:

Q: A student conducts the experiment as outlined in the posted procedure, and records the following…

A:

Q: Calculate ∆G for the reaction given below if the partial pressure of NO2 is 0.212 atm and the…

A:

Q: Question 6 At STP a sample of gas with a mass of 23.9 grams occupies 14.7 L. What is the molar mass…

A: Given-> At STP - T =273 K P = 1 atm Weight = 23.9 gm Volume = 14.7 L

Q: The reaction 2NO(g) + Cl2(g) ---> 2NOCl(g) was performed and the following data obtained: Is…

A: Ans.

Q: AICI,

A:

Q: Gas A has a molar mass 21.8, while gas B has a molar mass 78. How much faster will A effuse? (record…

A: The process of escaping the gas molecule through a very small hole is known as effusion. During…

Q: A gas has a pressure of 764.0 millibars at a temperature of 25.0 °C. If the volume is unchanged but…

A:

Q: What is Ideal Gas Law 2. Give the different Laws.(6 laws) 3. Give practical examples of each law.…

A: Question 1 -  Ideal gas law - - > The ideal gas law states that the product of pressure and the…

Q: What is the pH of the solution at the equivalence point?

A: Equivalence point :-  In acid-base titration the point at which the amount of acid added is exactly…

Q: A…

A:

Q: In a certain zinc-copper cell, Zn(s) + Cu2*(aq) – Zn2-(aq) + Cu(s) the ion concentrations are [Cu2*]…

A: Th Ecell of the cell reaction can be calculated by using Nernst equation as follows -

Q: Does a reaction occur when aqueous solutions of nickel(II) acetate and magnesium iodide are…

A: A reaction occur between two solutions if any solid compound form when they react. So, we would use…

Q: What is the pH of a solution made by mixing 30.00 mL of 0.10 M acetic acid with 40.00 mL of 0.10 M…

A: Weak acid are those which does not dissociate completely in aqueous solution. Here all CH3COOH are…