What is the half-life of phosphorus-28 if 0.537 seconds are required for the activity of a sample of phosphorus-28 to fall to 26.5 percent of its original value? sec

Q: d.S a solution where the concentration of undissociated acid particles is high and the relative…

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Q: 4. Name the chemicai test and state the expected resuit that couid be used to distinguish the…

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Q: how much does the cell potential change when Q is decreased by a factor of 10 for a reaction in…

A: Given , valence factro(v) = 2 T = 298 K Q is decreased by 10 Using Nernst's equation,  E1 = E° -…

Q: Below is a data table from an experiment in which an effervescent tablet is added to a test tube of…

A: The data given is,

Q: Which of the following statements about the SF experiment is/are CORRECT? The monochromator is…

A: A multiple choice question based on analytical process that is to be accomplished.

Q: Given the coordination compound:  [MoCO3(H2O)2][Zn(CN)3OH(en)2]. what is the charge of the central…

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Q: Which of the following describes the reaction: 'N+{He → '0+H beta decay reaction O alpha decay…

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Q: 71/2 0.032 kg mol1 (0.032 kg mol¯)(300 m s-1)2 ] exp -1 [27(8.3145 J K-1 mol)(300 K) 2(8.3145 J K-l…

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Q: The heat of fusion ΔHf of dichloromethane (CH2Cl2) is 6.2 kJ/mol. Calculate the change in entropy ΔS…

A: Calculations have been done in the following step.

Q: atomic mass of the magnesium-27

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Q: The pH of a 0.300 M solution of NaOAc is:   (For HOAC, Ka = 1.8 x 10-5) a. pH = 4.90 b. pH = 11.37…

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Q: Given the phase diagram of  mixture A and B both are solid where the mixture is heated until both…

A: To describe the phase given by the following conditions:

Q: Based on the phase diagram illustated below, what is the phase condition of the given two-component…

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Q: Name this compound: HOCCHCH, ÓCH3

A: Note : Since you have posted multiple questions, we are entitled to answer the first only. Please…

Q: 3. A device is being designed to separate a natural gas having a molar analysis of 94% CH4 and 6%…

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Q: Consider these reactions: Reaction 1: H2(g)+Cl2(g)⟶2HCl(g)ΔH=−184.6 kJ  Reaction 2:…

A: Given :  Reaction 1  H2(g)+Cl2(g)⟶2HCl(g)    ΔH=−184.6 kJ  To calculate :-  Amount of Cl2 has…

Q: A chemistry graduate student is given 500.mL of a 0.80M chloroacetic acid (HCH2ClCO2) solution.…

A: Given, pH to be made - 3.08 Ka - 1.3 × 10-3  chloroacetic acid taken - 500 mL of 0.80 M

Q: The ?sp of iron(II) hydroxide, Fe(OH)2, is 4.87×10−17. Calculate the solubility of this compound in…

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Q: CONCEPT CHECK No. 2: Write your answers on the blank spaces provided below for Questions 1 & 2…

A: Configurational Isomers are stereoisomers that can not be interconnected to one another by simple…

Q: Questión (a) From first principles, (i) Derive the fundamental equation for the changes in Gibbs…

A: A.) Although ΔGΔGdelta, start text, G, end text is temperature dependent, it's generally okay to…

Q: What is the product called when an aldehyde is reacted with excess ethanol with a acid catalyst? A.…

A: Given that, the reaction between an aldehyde and excess ethanol with an acid catalyst. We have to…

Q: The heat of vaporization AH, of acetonitrile (CH,CN) is 29.8 kJ/mol. Calculate the change in entropy…

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Q: A reaction chamber contains the following mixture at equilibrium: [H] = 0.22 M; [S-] = 1.0x10-6 M;…

A: Equilibrium constant Kc is the ratio of concentration of products to concentration of reactants at…

Q: A solution contains 0.100 M Pb(NO,), and 1.00 x 10 M AGNO, It is intended to separate out the silver…

A: Given: Concentration of Pb2+ (from Pb(NO3)2) = 0.100 M And concentration of Ag+ (from AgNO3) = 1.0 ×…

Q: Average Exposure to Radiation from Common Sources Source Dose (mremiyear) Naturally Occurring…

A: Given: The radiation received in an accident = 4.23 × 10-4 Sv

Q: What is the reaction of corn oil and sulfuric acid? What happens in Friedel-Crafts Reaction with…

A: Unsaturated fats will react with sulfuric acid to form C-O-S bonds where carbon from oil will attack…

Q: The ascorbic acid in orange juice was titrated with Iodine solution using starch indicator. Identify…

A: The ascorbic acid in orange juice was titrated with Iodine solution using starch indicator.

Q: Write a balanced nuclear equation for the following: The nuclide lead-214 undergoes beta emission. +

A: Given :- nuclide that undergoes beta emission = lead-214  To write :- balanced nuclear equation

Q: Given the volume of 0.3787 M NaOH used determine the concentration of 10 ml sample each from…

A: To determine the concentration of 10 mL sample each from aqueous layer (Aq) and benzene layer (Or),…

Q: What is the solubility of Mg(OH)2 ( Ksp 1.80 x 1011) in 0.0862 M Mg(NO3)2(aq), Leave answer in…

A: Given,  The solubility of Mg(OH)2 in 0.0862 M Mg(NO3 )2 is:

Q: 1. O3 , 2. (CH3)2S

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Q: Which of the following is NOT true about constant weighing in the experiment? A A proportionality…

A: Weighing is an important and necessary part of the experiment. If the amount of compound is not…

Q: Give 5 differences of Functional groups and hydrocarbons.

A: Difference between Functional group  and hydrocarbon  The main difference is in the presence of a…

Q: 1 OH OH CH3 CH3 H;C

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

Q: Non-essential amino acids are those that may be synthesized by the body A) True  B) False

A: Non essential amino acids are those that may be synthesized by the body. A) True  B) False

Q: A proposed mechanism for the gas phase reaction between nitrogen monoxide and oxygen is as follows:…

A: A chemical reaction can be added or subtracted like an algebraic equation. The given reaction…

Q: Туре Enthalpy Entropy (ДН)? Spont.? (-AG)? Reaction (AS)? Yes, No, or Maybe (TD*)

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Q: Aluminum nitrate + potassium bromide

A: We can expect aluminium bromide and potassium nitrate as the displacement products.

Q: Complete the table below with information about the different types of dyes. TYPES OF SUITABLE…

A: The answers are  1) protein or polyamide substrate like nylon,wool ,etc. 2) poly acrylonitrile,paper…

Q: The overall reaction of hydroxide radical with hydrogen gas occurs as follows: Part A OH'(G) + H2(g)…

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Q: Choose five items from the given scientific terms about dyes below. Then, provide definitions of…

A: In UV spectroscopy in terms of wavelength  , there are some categories of shifts, which are known as…

Q: of H2 are combined under, which would be considered the limiting reactant? Part 2) How many grams of…

A: Given,  Molar mass = 17 g/mol Moles of H2 = 3.90 mol Moles of N2 = 3.36 mol Balanced chemical…

Q: 1) The nitrite ion concentration in a given canned goods sample was determined by redox titration…

A: In the redox titration process of nitrite ion (NO2-) with permanganate ion (MnO4-), manganese ion…

Q: 1. It is important that under physiological conditions, the enzymes work at Vmax. * TRUE FALSE

A: Since you have asked multiple questions, as per guidelines we will solve only the first question for…

Q: For the oxidation–reduction reaction equation   2Na+S⟶Na2S indicate how many electrons are…

A: Oxidation - Reduction reaction is called as redox reaction.  Oxidation - loss of electron  Reduction…

Q: If the same mass of Na,sO4 (MW: 142 g/mol) and K2SO4 (MW: 174 g/mol) were weighed and used for the…

A: Given: Mass of Na2SO4 and K2SO4 taken is the same (assuming 100 g).

Q: Draw Lewis structure dot and show type of bond, total# of ve for the following:( 1) C„F2 2) CF, 3)…

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Q: 20. In one or two short sentences each, explain what is meant by the following terms. a. galvanic or…

A: 20.Electrochemistry is the branch of science that deals with the study of conversion of chemical…

Q: A reaction chamber contains the following mixture at equilibrium:[NH3] = 0.25 M; [N,] = 0.11 M; [H2]…

A: Kc is the ratio of the equilibrium concentrations of product over equilibrium concentrations of…

Q: A solution composed of 75.0 g magnesium iodide (Mgl)) in 300 g of water at 9.7 °C. What is the mole…

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Writing and Balancing Nuclear Equations

A nuclear equation is a symbolic representation of a nuclear reaction using certain symbols. It is studied in nuclear chemistry and nuclear physics.