Calculate the pH of a 0.250M solution of lead nitrate, Pb(NO₃)₂.

Q: Use two concentration tables to calculate the concentrations of the species present in a 0.390 M sol...

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Q: The chemical reaction presented below is not balanced. Balance it and calculate AH° and ASSurr for t...

A: The correct answer is given below

Q: 1. Calculate the standard enthalpies of the following reactions from the standard molar enthalpies o...

A: Exothermic reaction and endothermic reaction: Exothermic reaction : Exothermic reactions are reactio...

Q: need help calculating the IHD and reporting the ir analysis: absorption band if it there is a ring o...

A: The answer is as follows:  

Q: Which of the following compounds corresponds to the name (E,S)-6-methyloct-2-en-4-yne? (a) (b) (d) (...

A: The name of the compound given is .  

Q: A mixture of 0.02993 mol of O2, 0.02165 mol of NOCl, 0.02691 mol of NO2, and 0.01037 mol of Cl2 is p...

A: Total number of moles in reaction vessel = 0.02993 mol + 0.02165 mol+ 0.02691 mol+ 0.01037 mol = 0.0...

Q: volume

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Q: No of D isomers are possible for hexose Select one: a. 8 b. 4 c. 6 d. 16

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Q: A gas mixture is composed of 2.0 moles H2 and I mole N2. Calculate (a) the average molar mass of the...

A: Number of moles of H2 = 2 mole Number of moles of N2 = 1 mole Mole fraction of H2 = 2/3 = 0.667 Mole...

Q: Give biosynthesis of thujone from gerany|pyrophosphate

A: Thujone is a monoterpene with a ketone group and it is found in several plants including Salvia offi...

Q: You are making 2.2 L of 3.1 M silver nitrate solution. How many moles of solute are there?

A: Volume of solution = 2.2 L  Molarity of silver nitrate solution = 3.1 M  In the given solution solut...

Q: Chemistry The 35S atom on a radiolabeled amino acid, methionine, has a half-life of 87.4 days. What...

A: In a radioactive element, the decay of the nucleus of the element takes place due to the imbalance i...

Q: indicate if each of the following reaction is a reduction, oxidation, or neither

A: The reactions given are,

Q: The solid rocket propellant for the Space Shuttle (and Tomahawk Missiles) contain ammonium perchlora...

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Q: milliliters

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Q: Arrange the following e DECREASING atomic radius, rubidium, bromine, chlorine. A. Ca, CI, Br, Rb B. ...

A: The elements given are Ca, Cl, Br and Rb.  

Q: 6.)Calculate the pH of a 0.400M solution of phosphoric acid, H3PO4.

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Q: Determine the concentrations of the following ionic species present in a 0.328 M solution of the dip...

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Q: S, For ench renction. A7 write n word erntin B) Write he balmced olecuir equton C) write Hhe lonlmce...

A: 1) The reactants given are AgNO3 (aq) i.e. silver nitrate and NaOH (aq) i.e. sodium hydroxide.  

Q: Part F. Unit Conversions Direction: Determine what is asked in the following problems, all final ans...

A: Answer: Unit is used to measure a physical quantity.

Q: Calculate the pHpH for the following weak acid. A solution of HCOOHHCOOH has 0.18M0.18M HCOOHHCOOH ...

A: Given, the concentration of HCOOH at equilibrium = 0.18 M The Ka for HCOOH = 1.8×10−4 We have to cal...

Q: QUESTION 7 Solid Sodium Chloride is usualy separated out of a mixture by: O Dissolving it in water U...

A: ANSWER : Option (a) Solid sodium chloride is usually separated out of a mixture by "Dissolving it in...

Q: The peroxydisulfate ion (S208-2) reacts with the iodide ion in aqueous solution via the eaction: S2O...

A: Since you have posted question with multiple subparts as per guidelines we can answer only three per...

Q: 4. [4] Give a valid set of four quantum numbers for each electron in the valence sh ell of a ground ...

A: There are four set of quantum numbers which describes or gives all the information about an electron...

Q: Give the IUPAC name for the following molecules. Br HO. HO

A: Rules for naming an organic compound: 1. Select the longest possible continuous carbon chain as a pa...

Q: What of the following statements is false about cyclopentadienyl anion? A) It is aromatic B) It has ...

A: Please note- As per our company guidelines we are supposed to answer only one question. Kindly repos...

Q: volume

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Q: The reaction occurs in aqueous solution: NH4*(gg) + NO2(gg) → N2(g) + 2H2OU). The data below is obta...

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Q: average kinetic kinetic energy of helium gas at 140.0 K is 1.74594 kJ/mol. What is the average kinet...

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Q: emolecular formula

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Q: According to the Evan's pKa table, phenol has a pKa of 9.95. p-Nitro and m-nitrophenol have pKas of ...

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Q: 1. pH of a substance at 7 is how many times the concentration of a pH of 6.

A: Note - Since you have asked multiple question, we will solve the first question for you. If you wan...

Q: Convert 4.54 moles of Ca to atoms

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Q: The chemical analysis of a binary hydrate shows that it is composed of 27.76% Mn, 35.82% Cl and 36.4...

A: Calculating empirical formula:

Q: a) What is the advantage of very small particle sizes in LSC columns?  (b) With reference to the Va...

A: a) Small particle sizes are used in the LSC columns.

Q: Why plasma is rare on earth? Not less than 10 sentences.

A: Matter can be defined as any substance that have fixed volume and shape. Mainly there are three stat...

Q: What does the "(<1%)" in the mass spectrum mean?

A: Mass spectrometry helps us to predict the structure of unknown organic compound on basis of the frag...

Q: Balance the following sodium borohydride reduction equations showing the structures for the followin...

A: Please note- As per our company guidelines we are supposed to answer only one question. Kindly repos...

Q: 20. What is the approximate total number of atoms in 1.0 mole of lithium?

A: In this question we have to choose Correct option of the approximate total number of atom in 1.0 mop...

Q: Indicate whether the salts below would form solutions that are acidic, basic, or neutra in pH. Cu(NO...

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Q: I. Give the IUPAC name for each compound: a. (CH3)2C=CHCH,CHCH,CH3 ČH;CH2CH3 b. (CH3);CC=CC(CH3)3 c....

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

Q: A sample of N2 gas (2.0 mmol) effused through a pinhole in 5.5 s. It will take s for the same amount...

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Q: NH4 PO4 NH3 HPO 2

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Q: Determine the mass of solid NaCH:COO that must be dissolved in an existing 500.0 mL solution of 0.20...

A: Given that : Concentration of acetic acid = 0.200 M Ka = 1.8 x 10-5

Q: Show your solution (answer given): How many grams of KBr is required to prepare 150 ml of 2M soluti...

A: Molarity = 2M Volume of solution = 150 mL = 0.15 L Molar mass of KBr = 119 g/mol

Q: 3. Calculate the pH of the following solution that is a) 0.0100 M in HCl and 0.0200 M in picric acid...

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Q: Which liquid would be the least viscous? a. X b. Y c. Z d. Insufficient data to determine

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Q: The rate constant for this first‑order reaction is 0.660 s−10.660⁢ s−1 at 400 ∘C.400⁢ ∘C. A⟶produ...

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Q: A solution that contains14.32 grams of naphthalene in 150 grams of ethylene dibromide freezes at 7.1...

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Q: A 41.3-gram sample of a solution of naph- thalene, C10H8(s), in benzene, C6H6(l ), has a vapor press...

A: Given: Mass of sample = 41.3 g. Vapour pressure of solution = 63.9 Torr Vapour pressure of pure naph...

Ionic Equilibrium

Chemical equilibrium and ionic equilibrium are two major concepts in chemistry. Ionic equilibrium deals with the equilibrium involved in an ionization process while chemical equilibrium deals with the equilibrium during a chemical change. Ionic equilibrium is established between the ions and unionized species in a system. Understanding the concept of ionic equilibrium is very important to answer the questions related to certain chemical reactions in chemistry.

Arrhenius Acid

Arrhenius acid act as a good electrolyte as it dissociates to its respective ions in the aqueous solutions. Keeping it similar to the general acid properties, Arrhenius acid also neutralizes bases and turns litmus paper into red. 

Bronsted Lowry Base In Inorganic Chemistry

Bronsted-Lowry base in inorganic chemistry is any chemical substance that can accept a proton from the other chemical substance it is reacting with.