half-life

Q: A solution contains 0.24 M Pb2+ and 0.43 M A13+. Calculate the pH range that would allow Al(OH)3 to…

A: Given :  Concentration of Pb+2 = 0.24 M  Concentration of Al+3 = 0.43 M  Ksp of Pb(OH)2 = 1.43 x…

Q: How many moles of gas is in the  above 20.00 L container contains a gas at 50.00 oC and 1.000 atm.…

A: Ideal gas equation is given by,    PV = nRT   P = Pressure  V = Volume  n = no.of moles R =…

Q: CH3(CH2)13CH2 OCH2(CH2)14CH3 a wax both are correct neither is correct non-saponifiable

A: Option A is correct answer.

Q: 4. Arrange the following gases based on increasing average speed. (He, Ne, Ar, Kr, Xe). 5. If one…

A: According to kinetic molecular theory, the average speed of the gases is given as,…

Q: The decomposition of N205 in solution in carbon tetrachloride proceeds via the reaction: 2 N205…

A: Given data: 2N2O5(aq) -----> 4NO2(aq) + O2(aq) The above reaction is 1order reaction.

Q: H3C Br HC Br Br H3C. Br. Br H3C H3C Br Br (a

A: IUPAC name of given molecule is -

Q: Calculate the number of moles of reactants and theoretical yield of each product in each reaction.…

A: Here structure-4 is the only final product. The structure and formula of both the reactants and…

Q: 2. Calculate the normal freezing point of a 0.7439 mol aqueous solution of C12H22O11 that has a…

A: 2) Given, [sucrose] = 0.7439 M                         Density of solution = 1.35 g/ mL # Let the…

Q: Provide a systematic name (IN SMALL LETTERS except for E/Z and R/S, NO SPACES) for each of the given…

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Q: Which of the following nuclides would be most likely to undergo beta decay? Ste n, uy ng Uratacle…

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Q: Calculate the standard reaction potential and use the half-reaction method to determine the moles of…

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Q: Help with the structure of 2-chloro-2-phenylacetic acid

A: Given :- name of compound = 2-chloro-2-phenylacetic acid  To draw :- structure of compound

Q: 1. If magnesium is added to a solution of silver nitrate, which of the following would you expect to…

A: Answer - The correct option is (a) Explanation - According to the question - Magnesium  is added to…

Q: mass

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Q: 5. Determine the structure of the following compound based on its molecular formula, IR and 'H NMR.…

A: Using the data from the IR spectrum and 1H- NMR spectrum, structure of the molecule has been deduced…

Q: 101.325 l atm-161. 760 mm Hg (exactly), what is a pressure of 439 mm Hg in kPa? 0578 KPa b) 58.5 kPa…

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Q: Which of the following reagents changes from blue to red when it reacts with an aldehyde?" Potassium…

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Q: Identify the reducing agent in the following chemical reaction. Cd + NiO2 + 2H20 → Cd(OH)2 + Ni(OH)2…

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Q: Complete the following solubility constant expression for CaCO3. K_ sp ? olo

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Q: Using Wade s Rules, predict the structures of the following clusters (i) C4BH5Fe(CO)3 (ii)…

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Q: Estimate the number of 'H NMR signals that each molecule would display, entering your answer as a…

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Q: 3. Catalytic converters installed in cars, trucks, and newer-model motorcycles play an important…

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Q: Calculate the standard enthalpy of vaporization of methylbenzene (see question 1) at the standard…

A: Ans. The standard enthalpy of vaporization is given by rearranging the Claperon equation…

Q: An aqueous BSA* solution in the tube on the left is in equilibrium with pure water in the tube on…

A: 1 b 2.c

Q: 225 Ac 9.9 d 221Fr de days 4.8 m h hours meminutes Sseconds ms milliseconds usmicroseconds X1 32 ms…

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Q: The 'H NMR shown below belongs to a compound with the formula CaH»Br. Give its structure and assign…

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Q: 9. If fluorine is added to potassium chloride, which of the following would you expect to be the…

A: Introduction :  Group 17 of the periodic table constitute halogen group i.e chlorine, fluorine…

Q: The illustration below shows the energy profile for formation of ozone. What is the activation…

A: The energy profile diagram helps us to determine whether the reaction is endothermic or exothermic…

Q: • Part A Consider a simple reaction in which a reactant A forms products: A→products What is the…

A: Given reaction: A → products We have to find the rate law if the reaction is zero order, first…

Q: An approximately 0.1-molar solution of NaOH is to be standardized by titration. Assume that the…

A: Solution - According to the question -  In some reacfion there is problem to detect the end point so…

Q: An increase in the H* concentration by a factor of 1000 implies which of the following? A) The pH…

A: Hydrogen ion concentration is an important parameter of an aqueous solution. The concentration of…

Q: grams

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Q: What volume (in mL) of the prepared high alcoholic elixir is needed if Rx requires 120 mL of an…

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

Q: what are the  Physical properties of Ascorbic Acid,

A: Ascorbic acid also called as Vitamin C  which is used to prevent or treating low levels of Vitamin C…

Q: how to prepare a 50 mL of approximately 0.20 M NaOH using solid NaOH

A: Given :-  Molar concentration of NaOH solution = 0.20 M  Volume of solution = 50 mL  To discuss :-…

Q: different organic molecules. Indicate classification is there is any.

A: G) In the given,molecule has C=O in the structure.

Q: Compressibility Factor 7. Real gas vs. Ideal gas: Determine whether or not the molar volume of the…

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

A: Here we have to determine the major species which act as acid and base  at equilibrium in the…

Q: Q4.Plot equilibrium thermal diagram of Ni-Cu binary alloy complete solubility phase diagram.

A: The complete phase diagram of binary component of Ni-Cu is drawn below.

Q: How many electrons are required to "balance" the half-reactions and which side of the equation are…

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Q: Based on their respective van der Waals constants, which of these two gases: Xe (a = 4.137 L² atm…

A: We are given two gases Xe and CO2 along with their respective Van der Waals constant values.

Q: HO HOʻ II II IV

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Q: но но но он HN. Cerebroside Sphingosine O Ganglioside Ceramide

A: Cerebrosides are neutral glycosphingolipids that contain a monosaccharide, normally glucose or…

Q: Calculate the solubility at 25 °C of CuBr in pure water and in 0.33 M NaI. You'll probably find some…

A: Solution -

Q: It is well known that any radiocarbon takes several decades to disintegrate. In an experiment, only…

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Q: CH3 CH3 b.

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Q: Which of the following elements would be expected to undergo alpha decay? 23 238 92 O 123Te 52 187…

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Q: ne following gas in increasing order of molecular size: N2, H2, O2, Cl2

A: Molecular size of gases is depends the value of van der waals constant b.

Q: compound

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Q: 1. A certain amount of gas has a volume of 5000ml. at 760mmHg. What will its volume be if the…

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