a La =C

Q: How many moles of HCl need to be added to 200.0 mL of a 0.200 M solution of NaF to make a buffer wit...

A:

Q: How many valence electrons should be shown in the Lewis structure for SN2F2 ^2+?

A: Dear student I have given answer to your question in the image format.

Q: A reaction was carried out between 18 ml of a 0.05 M solution of hydrochloric acid with 24 ml of a 0...

A: The pH and pOH of the solution has to be given, The base dissociation of ammonia takes place as foll...

Q: What is the pH of a 0.20 M solution of sodium acetate? The Ka for acetic acid is 1.8x10-5 ?

A: Given, Concentration of sodium acetate = 0.20 M Ka of acetic acid = 1.8 x 10-5 Formula used, [OH-] =...

Q: What is the concentration of hydroxide ion in a 0.76 M aqueous solution of hydroxylamine, NH2OH? (As...

A: Given data set: Molarity of NH2OH= 0.76 M Kw= 1*10-14 Kb = 1.1*10-8 we need to calculate the concent...

Q: An analytical chemist is titrating 111.4mL of a 0.6700M solution of benzoic acid HC6H5CO2 with a 0.7...

A:

Q: 3) Consider the reaction F,(g) + 2CIO2(g) → 2FCIO,(g) Use the data in the table to calculate the ini...

A:

Q: PART A. What is the change in temperature when 3.00 grams of potassium chloride is dissolved in 100 ...

A: We have to find enthalpy of solution

Q: How do we convert the compound below into a quaternary amine to become more hydrophilic. ?

A: Given:-            A Quaternary amine salt of amine can be synthesized by using saturated amine reac...

Q: Titration reveals that 13.44 mL of 2.0 M sulfuric acid are required to neutralize the potassium hydr...

A: Given: Molarity of Sulfuric acid=2.0 mol/L The volume of Sulfuric acid=13.44 mL The volume of potass...

Q: What is the shorthand electron configuration for a silicide ion?

A:

Q: 3. Using the periodic table, which element in each pair is more electronegative? a. Si, O d. S, P b....

A: The ability of an atom to draw shared electrons to it's own is measured by electronegativity. Electr...

Q: Question 1 Saved Which of the following combinations of 0.250 M solutions will form a buffer? 50 mL ...

A:

Q: A very toxic yellow gas that decomposes slowly to NO and Cl2 according to: NOCl (g) → NO (g) + Cl2 (...

A: Slope = 0.035 M-1 s-1  Initial concentration of NOCl = 0.030 M time = 15 min     ....Or  because 1 m...

Q: Use tabulated thermodynamic data to calculate the standard entropy change and AGº for the reaction: ...

A: The standard free energy of a reaction is termed as the change in free energy which takes place when...

Q: What percent of the total mass of one atom of xenon (mass of one atom = 2.180x10-22g) comes from ele...

A: Xenon : Symbol : Xe Atomic number : 54 No.of electrons in one Xe atom : 54   Mass  of 54 electrons =...

Q: CH3 oxidation H3C-C-CH2-C-H H

A: The oxidation of aldehydes is affected by whether the reaction is carried out in an acidic or an alk...

Q: 1. In recrystallization, the goal is to obtain a purified material with maximum recovery? What are t...

A: Recrystallization is the purification technique. In this technique, the hot solvent is used to disso...

Q: A mixture is 10.0 mole% Methyl alcohol, 75.0 mole% ethyl acetate, and 15.0 mole% acetic acid. Calcul...

A: Number of moles of a compound is equal to the ratio of given weight of the compound to the molecular...

Q: Convert 2.09 moles NaOH to grams.     0.0523 grams NaOH     2 grams NaOH     174 g...

A: Moles = mass / molar mass  Molar mass = 40 g/ mol  

Q: 19

A: Given,

Q: Write formulas for (a.) ethyl fluoride and (b.) isopropyl chloride. Br. (d) É , and (e) CyHgl? What ...

A: The formulas and names for the given names and structures has to be given.

Q: Please give correct answer.

A:

Q: It was found that 25 ml of a sodium hydroxide solution, which per liter contains 4 g of commercial c...

A: Given data contains, Volume of sodium hydroxide is 25mL. Mass of commercial caustic soda is 4g. Mola...

Q: 2. Do you expect the equivalence point to be below a pH of 7, equal to a pH of 7, or above a pH of 7...

A: Equivalence point is that stage of titration at which amount of titrant added is enough to neutraliz...

Q: Which compound would you expect to have the higher melting point, propane or cyclopropane? Explain y...

A: The melting point of the liquid is its temperature where it just converts from a solid to a liquid a...

Q: According to the Kinetic Theory of Gases, an ideal gas molecule a. has mass, but no volume b. has mo...

A: According to the kinetic theory of gases, [By Amontons' Law (P T)] The last postulate of the kinetic...

Q: Give answer all questions with explanation and read question carefully then give complete answer wit...

A: Pyridine: pyridine is a organic base with molecular formula C5H4N and used to generate nucleophilic ...

Q: What is the hydronium-ion concentration of a 4.64 ✕ 10−4 M solution of p-bromobenzoic acid, BrC6H4CO...

A:

Q: Question 18 please

A: Equilibrium constant is defined as the ratio of concentration term of product and reactants where th...

Q: A buffer solution consisting of 0.15 moles of ammonia dissolved in half a liter of water. How much a...

A: Given data includes, Moles of ammonia is 0.15 moles. Kb of ammonia is 1.8x 10-5. The Henderson-Hasse...

Q: A swimmer dissipates 60 kJ of heat into a lake at +25°C. Assume the body temperature of the swimmer ...

A:

Q: What is the shorthand electron configuration for a barium ion?

A: The question is based on the concept of electronic configuration. we have to write shorthand electro...

Q: Write the formula of the molecular compounds formed by the following non metallic elements. As and ...

A: Since you have posted questions with multiple subparts, we will solve only first three subparts for ...

Q: A. What is the pH of an aqueous solution with a hydrogen ion concentration of [H+]=7.2×10−5[H+]=7.2×...

A: Since you have asked multiple questions, we will solve the first question for you. If you want any s...

Q: When the environment is contaminated by a toxic or potentially toxic substance the substance tends t...

A: The potential of the energy state of the system should be more than or less than the initial state.F...

Q: Write equation for the nuclear reaction curium 245 and identified the product nucleus.

A: Curium-245 is a alpha emitter because it will emmited an alpha particle ( alpha particle is Helium p...

Q: Q5. Use your knowledge of formation of ionic compounds and the cross over method. Show how Ca3(PO4)2...

A: Ca3(PO4)2 contains: Ca2+ ion PO43- ion   CaCO3 contains: Ca2+ ion CO32- ion  

Q: Chemistry Question

A: Acid-base titration is an analytical technique utilized to determine the unknown concentration of an...

Q: Question 47 Directions: Each set of lettered choices below refers to the numbered statements immedia...

A: 47 .  CH3COOH when dissolved in water gives acidic solution because it is a weak acid after dissolvi...

Q: i east.cengagenow.com/ilrn/takeAssignment/takeCovalentActivity.do?locator=assignment-take Chapter 6 ...

A: Solved

Q: An ion has a mass number of 65, 36 neutrons, and a charge of +1. Identify the element symbol, and de...

A: Atomic number is defined as the number of protons present in an atom or ion while mass number is def...

Q: Instructions: The first exercise is alkylation of the alpha proton. The second and third exercises a...

A:

Q: What is the chemical formula for the compound formed between iron(II) and chlorine? chemical formula...

A: Interpretation -  To write the chemical formula compound formed between iron(II) and chlorine - To ...

Q: What is the molecular shape of CF3-?

A: The shape of molecules and ions can be estimated through Valance Shell Electron Pair Repulsion or VS...

Q: A reaction was carried out between 18 ml of a 0.05 M solution of hydrochloric acid with 24 ml of a 0...

A: Given:-          A reaction was carried out between 18 ml of a 0.05 M solution of hydrochloric acid ...

Q: Aluminum reacts with excess hydrochloric acid to form aqueous aluminum chloride and 23.7 mL of hydro...

A: reaction between Al&HCl 2 Al (s) + 6HCl (aq) ------>2 Al Cl3 (aq) +3 H2(g)

Q: Give correct answer choice

A:

Q: Boron trifluoride (BF3) has no dipole moment (µ = 0 D). Explain how this observation confirms the ge...

A: According to VSEPR theory, BF3 has zero lone pair and 3 bond pair so its steric factor is 3. Then th...

Q: Calculate the volume (ml)of concentrated ammonia and the weight (gm) of ammonium chloride respective...

A: The pKb of ammonia is given as 4.76. The pKa and pKb are related by a simple equation that is pKa+pK...

Designing a Synthesis

Organic synthesis is a branch of chemical synthesis that involves the planned construction of organic compounds/molecules from smaller units that possess functional groups. Friedrich Wöhler was the first scientist who designed the synthesis of an organic compound, urea from inorganic starting materials silver cyanate with ammonium chloride via a simple, one-step synthesis.