Q: Can you please provide an explanation on your answer, thank you. A reaction that has a rate only…
A: Chemical kinetics is branch of chemistry in which we deal with the speed at which rate of reaction…
Q: How many energy (in kj/mol) is released in the fusion reaction of 4-6 with H-2 nuclei to prepare two…
A: In fusion reaction nucleolus fuse to give heavier nucleolus with release of energy
Q: Refer to the following potential energy diagram for the reaction: XY→ X+Y Potential Energy 400 300…
A:
Q: Column Chromatography Alumina Chromatography Mixture 9:1 Hexanes:Ether 8:2 Hexanes:Ether 1:1…
A: The given process is the oxidation of benzoin to benzil and the purification of the product through…
Q: Chemistry CH₂CH₂CH₂CH₂CH₂ iupac name CH₂CH₂CH₂CH₂ CH₂CH₂CH3
A: IUPAC name of following compound is .
Q: An unknown cadmium (II) solution was analyzed polarographically by the method of standard additions.…
A: Given : Mass of unknown sample = 25 ml i = 1.86 μA Concentration of Cadmium ion = 2.12 × 10 -3 M…
Q: The compressibility factor (Z) is a correction factor which describes the deviation of ideal gas…
A:
Q: 20. The number of lone electron pairs in the N₂ molecule is A) 1 B) 2 C) 3 21.The Lewis structure…
A: Number of lone pair of N2 and Lewis structure of CS2
Q: Describe the trend in ionization energy:
A: Ionization energy (EI): When an electron is removed from the outermost shell of an isolated gaseous…
Q: The word prokaryotic means
A:
Q: Instructions: Choose any 2 molecules to synthesize. Your starting materials can be any 4 carbon or…
A: The cyclic polymerization of ethyne to give a benzene. Benzene undergo nitration with nitric acid in…
Q: An element has 19 electrons in its neutral state. What is the ground state electron configuration of…
A:
Q: Two metals X and Y are mutually soluble in all proportions in the liquid state, but are completely…
A: We have find out answer by drawing binary X-Y phase diagram.
Q: I need to make 1 liter of the solution. I need a list of what I need to use and how much of each.…
A: In the given problem we need to make a list of substances and their amount for prepare 1 litre of AH…
Q: In general, as you go across a period in the periodic table from left to right: (1) the atomic…
A: Given, 1) The atomic radius across in the periodic table from left to right is:
Q: H3C. CH3 CH3 FIGURE 5
A:
Q: S H-O O I'l" S H
A:
Q: 7. In potentiometric measurement, any change in cell potential is due to a change in the potential…
A: Given- Potentiometric titration statement To find- the statement is true or false
Q: If 44.8 kJ of heat were added to 166 g of liquid water (specific heat of 4.184 J/g °C) at 18 °C, how…
A:
Q: What is the complete balanced reaction for the complete combustion of C8H18 in oxygen? From the…
A:
Q: CH3COO + H2O → CH3COOH + OH- K₂=1.8x10-5(for acetic acid)
A:
Q: what is the Average mL of NaOH used = What is the Molarity of the HCl =…
A:
Q: 25.If 0.274 moles of a substance weighs 62.5 g, what is the molar mass of the substance, in units of…
A: Given data Moles of substance = 0.274 mol weight of substance = 62.5 g find out the molar mass of…
Q: Compare and contrast nucleophilic reactions of HCl with propanone (ketone) propanal (aldehyde) and…
A:
Q: Conversions: include the correct number of significant digits a. 0.35 oz to mg b. 75 mL to…
A:
Q: The diagrams 1 to 3 below can be arranged to show the mechanism involved in a familiar reaction. The…
A:
Q: give isotope name and symbol of - cobalt-60, iodine-131, strontium-89, technetium-99, sodium-24
A: We have to write the isotope name and symbol
Q: The reaction below reaches equilibrium in a closed reaction vessel. 4 HCl(aq) + MnO₂(s) Cl₂(g) + 2…
A:
Q: calculate the [H3O+] value {OH-]=1.2x10-5M
A: [OH-] = 1.2 × 10-5 M [H3O+] = ?
Q: Given the equilibrium expression below, the most likely equation for the reaction is: [N₂][0₂] Keq =…
A:
Q: 1. 2. 3. Pb(NO3)2 _Cl₂ + C3H6+ + ______K₂CrO4 --> KCI + KI --> _0₂ --> PbCrO4 + ____I₂ _CO₂ + H₂O…
A:
Q: Criven a Structure of Poly khenat Crive the stort Solubility of holyphenol gallic gallic acid, in 1…
A: Like dissolve like means polar compounds are soluble in water whereas non-polar compounds are…
Q: Enter a balanced molecular equation for the neutralization of each of the following including…
A:
Q: b) In this experiment potassium hydrogen phthalate solution is used as a secondary standard solution…
A: Primary and secondary standard are used for titration purpose only .
Q: How are carbonion formed
A: Carbanion is species in which carbon atom is sp3 hybridized.
Q: H3C CH₂. CH3 Isobutyl alcohol (1 equiv) H30+
A:
Q: 21. The elements in Group 7A are known by what name? A. transition metals B. halogens oli m D.…
A: Group 7A of the periodic table consists of the elements: fluorine (F), chlorine (Cl), bromine (Br),…
Q: 9. Express the number 0.000053 in scientific notation. A) 5.3×10² B) 5.3x10³ C) 5.3×10+ D) 5.3x10-5…
A: 9. We have to predict the number in scientific notation. 10. We have to predict the number of Sig…
Q: Consider a molecule with the molecular formula C6H11BrO2 Draw a structure based on the data…
A: The structure for the given molecular formula C6H11BrO2 is given below
Q: The diagrams 1 to 3 below can be arranged to show the mechanism involved in a familiar reaction. The…
A: here we are required to determine the sequence of the reaction mechanism
Q: A compound contains only carbon, hydrogen, nitrogen, and sulphur. A combustion analyzer collects…
A: Given, A compound contains only carbon hydrogen, nitrogen and sulpur. The combustion analyzer…
Q: Question 3 Consider H₂; which of the following would not have a value of 0 at 25°C? O Entropy O…
A: Question 3 Hydrogen appears as H2 in its standard state. Thus, enthalpy ( ΔHf0 ) and gibbs free…
Q: A beaker contains 50.0 mL of saturated Mg(OH)2. An additional 5.0 mL of 0.10 M NaOH is added to the…
A: Given the initial volume of saturated Mg(OH)2 inside the beaker = 50.0 mL Ksp of Mg(OH)2(s) =…
Q: 18.Classify the C-Cl bond in CCl4 as ionic, polar covalent, or nonpolar covalent. A)ionic B) polar…
A: Introduction :- Ionic Bond :- The chemical bond formed by complete transfer of electrons from one…
Q: Dosage (mg/L) 1 2 Residual Cl₂ (mg/L) 0.2 0.45 3 1.05 لله 4 2.75 5 4.5 6 5.15 7 6.03
A: In the given problem we need to determine the break point dose of chlorine.
Q: 15. Give the number of lone pairs around the central atom and the geometry of the ion NO₂. A. O lone…
A: The geometry of a molecule can be determined by the VSEPR theory, according to which bond pair and…
Q: I III Which of the following fatty acids is an Omega-3 fatty acid? II IV A) Compound I B) Compound…
A: We have to select the Omega-3 fatty acid
Q: Which of the following aqueous solutions would be the best conductor of electricity at room…
A:
Q: 3. Voltammetry is limited to analysis of inorganic samples only.
A: Voltammetry is an analytical technique in which a species is identified and its concentration is…
Q: Draw the Lewis dot structures for NO3-.
A:
Step by step
Solved in 2 steps
- why Mg (II) must be added when EDTA is standardized using acalcium standard solution and Eriochrome Black T as indicator.Would the indicator bromocresol green, with a transition range of pH 3.8–5.4, ever be useful in the titration of a weak acid with a strong base? Why?why is it difficult to find the Ksp value for Mg(OH)2 during titration, compared to Ca(OH)
- In the determination of water hardness by volumetry, AEDT is used. If the volume of 0.01 M EDTA used to titrate 100 mL of sample was 20 mL, calculate the total hardness expressed in mg/L of CaCO3.A solution containing Mg2+ was buffered to pH 9.99 and titrated with EDTA. Eriochrome black T, with p?a1 = 6.3 and p?a2 = 11.6 was used as the indicator. It is a diprotic acid, H2E What is the fraction of the predominant form of eriochrome black T in solution at this pH? (To answer this, report the alpha fraction of the indicator’s most prevalent species at this pH)For Determining Carbonate in Soda Ash... Utilize primary Standard Na2CO3(FW = 105.99) and titrant 0.1 M HCl... with the reaction also use Bromocresol Green or Methyl Orange as indicators . What two other indicators can use aside from Bromocresol Green and Methyl Orange for the titration?
- List four methods of detecting the end-point of an EDTA titration and explain each.In order to adjust the EDTA solution, 10 mL of 0.01M Ca + 2 sample was taken and 10 mL of pH 10 buffer was added on it and it was completed to 100 mL. Then, two drops of EBT indicator were added and titrated with EDTA. Since the consumption is 13 mL, what is the concentration of EDTA solution in terms of molarity?Titration of 25.0 mL of a 0.0500 M Zn2+ solution with 0.0550 M EDTA in a solution buffered at pH 8. Assume that the temperature is 25 oC and that the formation constant for Zn2+ is 3.13 x 1016 at this temperature. What is the conditional formation constant for Zn at this pH?
- You are going to analyze a substance with the following structure. What method will be best used? CHOICES: a. Neutralization b. Direct EDTA Titration c. Indirect and Residual d. EDTA Titration e. Residual Titration PrecipitationComplexometric titration must be performed at pH 10.0 True False1_ In the titration why the colour changes from wine red to bue? 2_what are the harmful effects of hard water? 3_write the principle involved in hardness of water by EDTA method?