2px зру 2.Draw an energy-level diagram for Polonium, Po (atomic number=84).

Q: For a reaction, if AGO = 0, one can surely conclude that: O 00 AS⁰ = 0 ΔΗ = 0 AU=0 K=1 K=O

A: We know some relation ;  ∆Go = ∆Ho - T∆So  ∆H = ∆U + P∆V  ∆Go = -RT ln K  From these relations we…

Q: In a study of the gas phase decomposition of hydrogen iodide at 700 K HI(g) →→→ H₂(g) + 12 I₂(g) the…

A: Given data  [HI], M  1.57,0.785,0.393,0.197       Time  sec   0 ,   731   , 2.19 * 10 ^ 3 , 5.1 * 10…

Q: Draw and make models of cis-2-butene and trans-2-butene. Are these molecules mirror images of each…

A: Given molecule : cis-2-butene and trans-2-butene

Q: Are the following compounds chiral or achiral? HO. CH3 CI CH3 Br Oll... rby &

A: A question based on stereochemistry of organic compounds that is to be accomplished.

Q: 11.10 Draw the condensed structural formula for alkanes or the line- angle formula for cycloalkanes…

A:

Q: Write the balanced molecular chemical equation for the reaction in aqueous solution for cesium…

A:

Q: 5. Limestone consists mainly of mineral calcite, CaCO3. The carbonate content of 0.5413 g of…

A: Here 0.5413 g of powder lime stone sample is treated with 10ml of 1.396 HCl and then unreacted…

Q: Calculate the weight in grams of the corresponding sodium salt that must be added to 100 ml of the…

A:

Q: Which of the following Fischer projections corresponds to the shown bond-line drawing (Hint:…

A: Introduction The Fischer projection in chemistry is a two-dimensional rendering of a…

Q: The absorbance spectrum of a certain complex is given below: A abs 546 0.25 549 0.52 552 0.66 555…

A: A question based on absorption that is to be accomplished.

Q: An experiment requires 150.0 mL a 0.255 M solution of MgCl2. How many grams of MgCl2 are required?

A:

Q: What is the point group of this molecule? O O D4d O D4 O D4h Td Oh Ih Cannot be determined

A: The molecule has C4, 2σv, 2σd, 4 perpendicular C2, σh as well as other symmetry elements. The point…

Q: Question 4 Part b of previous problem: A 0.150 M solution of a weak acid has a pH of 2.65. What is…

A: Answer:- This question involves the calculation of percent ionization of a weak acid which is given…

Q: Chart 1 I 8 - 6 H 4 Axis Title G fx 1 O Chart Title 2 F O 0 80 70 60 50 40 30 20 10 0 Axis Title D 1…

A: A question based on tools in analytical chemistry that is to be accomplished.

Q: The formation of products in a gas-phase rxn is affected by A. Amount of reacting molecules B. All…

A: The amount of product formed depends upon the amount of reacting molecules in every phase reaction.…

Q: Predict the major product formed when hexanoyl chloride is treated with C6H5CO₂Na. Modify the given…

A: Acid chloride reacts with sodium acetate to give anhydrides.

Q: 20. Show your understanding of the relationship between Keq and Q. If the reaction in #18, above, is…

A: Answer:- This question is answered by using the simple concept of chemical equilibrium. Firstly Q of…

Q: A standard solution was prepared by dissolving 0.2436 g of tin (II) chloride (SnCl2) in distilled…

A: Weight of tin(II) chloride in standard solution= 0.2436 g  Volume of distilled water in standard…

Q: Please show ALL STEPS of mechanism using reagents NaHCO3, I2, and H2O

A:

Q: 2. 000) 2NOCI(g) 2NO(g) + Cl2(g) at equilibrium, [NO]=0.04M [C12] =0.02M [NOCI] = 0.348M

A:

Q: A₂ = A + A (k₁ and k-₁) A + B → P (K₂) i) Solve for dP/dt using a pre-equilibrium assumption ii)…

A:

Q: n an experiment on sodium fusion (Lassaigne’s test), why should the aqueous fusion filtrate be…

A: Lassaigne’s test is used for the detection of elements: Nitrogen (N), Sulfur (S), Chlorine (Cl),…

Q: Calculate the mass of copper sulfate hydrate placed in crucible for a trial 2. Calculate the mass…

A: Given Data Table: To determine: 1.The mass of copper sulfate hydrate placed in crucible for a trial…

Q: Which postulate(s) of Dalton's atomic theory of matter is/are NOT true? I. Atoms of a given element…

A: Dalton theory has proposed some postulates about the matter , but after further research some of the…

Q: Given the solubility of zinc hydroxide to be 3.7 x 10-4 g/L, the pH of a saturated Zinc hydroxide…

A:

Q: This is the chemical formula for iron(II) hydroxide: Fe(OH)2. Calculate the mass percent of oxygen…

A:

Q: Sodium phosphate and calcium chloride react to form cal cium phosphate and sodium chloride.

A: Given reaction is double displacement reaction.  Double Displacement reaction-: when reaction in…

Q: Identity of the salt: NaCl a. Mass of salt [g] b. Molar Mass of salt [g/mol] c. Moles of salt [mol]…

A:

Q: Question 13 What is needed to prepare 500 mL of 1% HCI in 70% ethyl alcohol 350 mL of 100% ethanol,…

A: Solution:We need 500ml solution.70% of 500 = 350ml. So take 350 ml pure ethyl alcohol, and add 150…

Q: How many stereocenters are in the D-glucose molecule? a. 4 b. 2 d. 1 e 3 Clear my choice

A: Dear student since you have asked multiple questions questions according to guidelines we will solve…

Q: Balance the equations #1: KO2(s)+H2O(l)->KOH(aq)+O2(q)+H2O2(aq) #2 Fe2O3(s)+HBr(aq)…

A: Stoichiometric coefficient : It describes the total number of molecules of a chemical species that…

Q: The chemical formula for acetic acid is: CH3COOH Calculate the molar mass of acetic acid. Round your…

A: Molar mass of the compound is defined as it is mass of one mole of compound and can be calculated as…

Q: There are only two naturally occurring isotopes of Copper, 63 Cu and 65 Cu. Copper has an atomic…

A:

Q: 1002X) 7. Phosgene is a potent chemical warfare agent that is now a agreement. It decomposes by the…

A:

Q: OH HO OH wenal

A: A chiral centre is a carbon atom that has four different groups attached to it.  Chiral molecules…

Q: How to balance the equation: Plz explain the Steps to how to solve for each. #1 KO2(s)+H2O(l)…

A: “Since you have posted a question with multiple sub-parts, we will solve first three subparts for…

Q: Pure water is saturated with slightly soluble silver chromate. Which of the following statements is…

A: Solubility product constant (Ksp) is product of dissolved ion concentration of cation and anion

Q: In which of the species ICl6 − and SF4 is the bond angle closest to that predicted by the VSEPR…

A:

Q: The explosion of nitroglycerine is described by the equation  4C3H5(NO3) 3 → 12CO2 + 10 H2O + 6N2 +…

A:

Q: 2) If 16.817g of a hydrate is found to contain 6.118 g of water, what i in the hydrate? mitt boor 3)…

A:

Q: x

A:

Q: The density of dry air is 0.0118 g/cm3. What is the volume of the air that has a mass of 15.5 g?

A: The density of air = 0.0118 g/cm3  Mass of air = 15.5 g  Formula used :  Density = Mass ÷ volume

Q: A concentration of toxic metals in plant tissue is often found by combusting the material in a…

A: The 0.5124 g sample of leaves was finally filtered into a 50 mL volumetric flask and brought to…

Q: A sample of water was found to contain 900 g of calcium per m3 of sample. Determine: a) Parts per…

A: Here we have to use the relation: (a) 1 g/m3  = 109ppt (b) 1 g/m3 =  1 ppm

Q: write a net ionic equation for the reaction that occurs when barium carbonate (s) and excess…

A: Given  Reaction between barium carbonate (s) and excess hydrobromic acid (aq)

Q: Why can we use a water-ethanol mixture but not a water-hexane mixture as a recrystallization solvent

A: Recrystallization is a technique which is used to purify compounds. On dissolving an impure compound…

Q: How many rings are present in C₁4H20? This compound consumes 2 mol of H₂ on catalytic hydrogenation.…

A: The double bond equivalent(DBE) is used to find the no. of double bonds in the given molecular…

Q: Draw one of the possible diastereomers of the molecule shown below. Use a dash or wedge bond to…

A:

Q: A voltaic cell was constructed with Au-Au³+ and Mn-Mn²+ half-cells: Given the standard reduction…

A:

Q: You have a MASTER STOCK solution containing 1.000g of caffeine in 100mL of mobile phase solvent…

A: Given that the Student stock solution is 0.01 g of caffeine in 100 mL of mobile solvent mixture.…

Group 14 Elements

The following elements come under group 14 of the periodic table.