mass

Q: The general reaction involved in the saponification of fatty acids with NaOH is O Aminolysis O Acid ...

A: Saponification is the process that involves the conversion of fat,oil or lipid into soap and alcohol...

Q: Which statement below is not true? answer choices A) A fuel cell is a galvanic cell. B) The cell ...

A: Fuel cell : It is an electrochemical cell producing energy by combining hydrogen and oxygen atoms.

Q: The decomposition of ethyl iodide in the gas phase to produce ethylene and hydrogen iodide is a firs...

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Q: Provide the organic chemical reaction of the sythesis of acetaldehyde. Here is the link of the vide...

A: Potassium dichromate is an Oxidizing agent and it converts alcohol to aldehydes.  Oxidizing agents a...

Q: Calculate the entropy change AS°universe for the following reaction, at 25 °C. CO + 2H2 CH3OH Standa...

A: Solution -

Q: 2. Suppose that you are studying a reaction and need to determine its rate law. Explain what you wou...

A: Answer -

Q: For each atom in the table below, write down the subshell from which an electron would have to be re...

A: Electrons are filled in a different atomic orbital in an atom. According to the Aufbau rule, the ele...

Q: BRINE SOLUTION PROBLEM: Carbon-14 is a radioactive isotope of carbon that has a half-life of 5600 y...

A: half-life = 5600 years t = 10,000 years

Q: The dipole moment of HF is 1.83 D and the bond length is 91.7 pm. Calculate the amount of charge in ...

A: Given: The dipole moment of HF, (D) = 1.83 D = 1.83×3.34×10-30 = 6.11×10-30 Cm The bond length, (L) ...

Q: The hydroxide ion concentration of an aqueous solution of 0.353 M hydrocyanic acid is [OH'] M.

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Q: chemist encounters an unknown metal. they drop the metal into a graduated cylinder containing water,...

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Q: the equilibrium constant of a reaction is greater than zero, it indicates that the reaction tends to...

A: Yes this statement is true . Because equilibrium constant has formula = concentration of product div...

Q: The density of toluene, C7H8, is 0.867 g/mL and the density of thiopene, C4H4S , is 1.065 g/mL. A so...

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Q: Which of (a)-(d) is not aromatic? (B) (A) (C) (D)

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Q: Consider the following reaction:   SO3(g) + CaO(s) ⇌ CaSO4(s).   If ΔG0 is −345 kJ/mol for this ...

A: we have balanced chemical equation SO3(g) + CAO(s)  <==> CaSO4(s) and given data  ∆G° = -345KJ...

Q: Consider the following reaction: Na* + e- → Na Which of the following best describes the reaction?

A: here the sodium cation takes one electron and forms the sodium metal here electron is added I.e gain...

Q: pi bonds and sigma bonds

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Q: A container initially has 5.82 moles of N,0, 8.14 moles of O,, and 1.03 moles of N,0, in a box. Assu...

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Q: How can you prepare a set of solutions with concentrations spanning several orders of magnitudes? a...

A: Explanation: A) serial dilution:             A serial dilution is the stepwise dilution of a substan...

Q: Part A A 50.0-mL sample of a 1.00 M solution of is mixed with 50.0 mL of 2.00 M KOH in a calorimeter...

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Q: Identify the balanced chemical equation for the following cell: Al(s) | Al3+ || Hg²*|Hg(1) A Al(s) +...

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Q: 30 The mass of one atom of 14SiCon is 29.9738 amu. What is its mass mass deficiency (amu/atom). Mass...

A: Mass of silicon atom = 29.9738 amu  Mass of an electron = 0.00055 amu  Mass of proton = 1.0073 amu  ...

Q: The isomerization of cyclopropane follows first order kinetics. The rate constant at 700 K is 6.20 x...

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Q: What is the molar solubility of AGCI (Kşp = 1.8 x 10-10)? A 7.31 x 10-5 M B 5.13 x 10-6 M 3.84 x 10-...

A: AgCl <----> Ag+ + Cl-  Let the molar solubility of [ Ag+] = [Cl-] = s  ksp = 1.8×10-10  Ksp = ...

Q: An alternate way to state Avogadro’s law is “All other things being equal, the number of molecules i...

A: Given AVOGADRO'S LAW We need to state the meaning of term directly proportional and other things con...

Q: Part A pH = 8.77 Express your answer using two significant figures. Enter your answers numerically s...

A: Part A  pH = 8.77  pH = -log[H3O+]  Log[H3O+] = -pH  [H3O+] = antilog(-pH) = antilog(-8.77)  [H3O+] ...

Q: complete and balanced chemical equation

A: Given: In the reaction of nitrogen and hydrogen gases, ammonia and heat are generated.

Q: Use the observation in the first column to answer the question in the second column. observation que...

A: The higher the enthalpy of vaporization lower the vapor pressure of the substance and the higher is ...

Q: What mass of zinc (in grams) is deposited at the cathode when a current of 7.5 amperes passes throug...

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Q: is Kp fo

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Q: The vapor pressure of pure Freon 11 and pure Freon 12 at 25ᵒ C are 15 lb/in2 and 84 lb/in2 respectiv...

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Q: Trial Conc. A (M) Conc. B (M) Rate 1 0.706 0.771 6829.54 2 0.706 3.855 34147.702 3 2.11...

A: Given: Trial Conc. A (M) Conc. B (M) Rate 1 0.706 0.771 6829.54 2 0.706 3.855 34147.702 3 2...

Q: CH3 "H. + CN- "Br ´Br

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Q: Mass, Volume and Keq An equilibrium mixture, at 919°C in a 1929-ml container, involving the chemical...

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Q: In a 55.0-g aqueous solution of methanol, CH4O, the mole fraction of methanol is 0.110. What is the...

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Q: A 1.0 mole of liquid water at 100 °C and 1.00 bar pressure converts into vapor at the same temperatu...

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Q: The reaction 2A(s) + B(g) = 2C(s) represents a(n). A homogeneous equilibrium B heterogeneous equilib...

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Q: Given the reaction:                 2A + B ---> products ,         rate = k[A]^-1 a) Express the r...

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Q: Trial Conc. A (M) Conc. B (M) Rate 1 0.706 0.771 6829.54 2 0.706 3.855 34147.702 3 2.118 0.771 6829....

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Q: Which of the following is used to mix the solutions while heating? Glass stirrer / Stir Rod O a. O b...

A: Some solutions need stirring  with heating

Q: 10.0 mL of a 0.30-M sodium phosphate solution reacts with 20.0 mL of a 0.20-M lead(II) nitrate solut...

A: Problems on limiting reagents:

Q: 12.0 10.0 pH of solution in flask 80 Equivalence Point 6.0 40 2.0 5 10 15 20 25 30 35 40 45 ml of 0....

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Q: Soap and detergent form micelles wherein the hydrophobic end points outside and the hydrophilic end ...

A:   Micelles are made up of amphiphilic molecules that self-assemble.  [1] The structures have a hydro...

Q: Be familiar with redox and electrical circuit (voltage, current, etc.) terminology Answer: • Be able...

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Q: b) Calculate the mass of solute required to make 263 mL of a magnesium sulfate solution that has an ...

A: #(b): Given osmotic pressure, π = 3.85 atm temperature, T = 311 K R = 0.08206 L.atm.mol-1.K-1 

Q: Consider the following reaction of a weak base with water: ClO + H,0 = HCIO + OH- If a dilute HCl sa...

A: When HCl is added to the solution of HClO(weak acid) solution than due to common ion effect the diss...

Q: • Be familiar with redox and electrical circuit (voltage, current, etc.) terminology Answer: Be able...

A: 1) Answer - Redox system - a chemical reaction between two substances in which one substance is oxid...

Q: balance the following equation  (NH4)2 SO4(aq)+     Ba(C2H3O2)2(aq)   ->   BaSO4(s) + NH4C2H3O2(aq)

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Q: In the context of nuclear stability, when the atomic number collection of positive charges. no numbe...

A: The stability of an atom's nucleus is referred to as nuclear stability. A stable nucleus does not de...

Q: Which of the following solids would be expected to display the highest melting point? O A. KBr O B. ...

A: Ionic compound has ionic force, the strongest inter-molecular force. That's why they possess very hi...

Atoms and Molecules

An atom is the smallest unit of an element that possesses all the properties of that particular element. Molecules are the smallest unit of a substance that possess all the properties of that particular substance.