How many KJ of energy are released when 6.39 g of Fe reacts with excess O₂? Given the following chemical reaction: 4Fe + 30₂ → 2Fe₂O, ; ΔΗ = -1625KJ

Q: 3. A 4.326 g sample containing ethyl mercaptan (C₂H_SH) was treated with 50.00 mL of 0.1287 M 1₂ in…

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Q: A 0.1824-g sample of an acid is titrated with 0.3090N sodium hydroxide, and 9.256 mL is required to…

A: Given data ;                       Mass of acid taken for titration = 0.1824 g…

Q: For the following redox reaction, write a balanced equation for the whole reaction and include the…

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Q: Select the correct product for the following transformation: Br Br NaCN DMSO NC. B A 'Br Br. B CN ?…

A: In this question we have to tell the product of the reaction.

Q: Determine if the acid-base neutralization reaction of hydrochloric acid (HCl) with sodium hydroxide…

A: Given: The reaction of NaOH and HCl at 37 oC. Assuming that the ΔHo and the ΔSo of the reaction is…

Q: Calculate the standard change in Gibbs free energy for the reaction at 25 °C. Refer to the AG°f…

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Q: Chemistry :             What happens when a strong base such as KOH is dissolved in water?…

A: Strong base and weak base act different in water.

Q: QUESTION 5 For the reaction below, determine the stoichiometric coefficient on the hydrogen ion in…

A: Given, the unbalanced equation: MO3-(aq) + X3+(aq) → X4+(aq) + M3+(aq) We have to find the…

Q: QUESTION 11 An electrochemical reaction has a standard cell potential of 0.600 V. If 2 moles of…

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Q: 50.0 mL of a 6.0 M stock solution of K2SO4 is diluted to make a 2.0 M solution.  How many mL of…

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Q: A 40.00 g sample of a hydrocarbon compound is analyzed by combustion analysis. The experiment…

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Q: If 45 mL of a 6.5 M HNO3 solution is added to 55 mL of water, what is the new concentration?

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Q: Complete the mechanism for the DIBAL-H (diisobutylaluminum hydride) reduction of methyl…

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Q: The standard voltage, Eº, for the reaction of Zn(s) and Cl₂(g) is 2.12 V. What is the standard Gibbs…

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Q: 1. NaOH 2. Hg(OAc)2, H₂O 3. NaBH4 1. NaOH 2. BH3-THF 3. H2O2, NaOH 1. NaOtBu 2. Hg(OAc)2, H2₂O 3.…

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Q: Calculate the entropy of HBr at 298 K and 1.00 bar, given that the bond length is 1.41 Å and the…

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Q: What is the oxidation number for S in AI(HSO4)3. Include the sign

A: The oxidation number of the elements are given below - - > Al = +3 H  = +1 S = X O = - 2

Q: 10. Which of the following com JUSTIFY why. a. HCI and NaCl b. CH3COOH and KCH c. H₂S and NaHS

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Q: Which solution is placed inside the buret? NaOH O vinegar O water OKHP

A: Which solution is placed inside the buret?

Q: reaction has a ΔSsystem < 0

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Q: CH3CH₂COOH(aq) + H₂O(l) → CH3CH₂COO (aq) + H30* (aq) Propanoic acid, CH3CH₂COOH, is a carboxylic…

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Q: What is the value of 0 for the first diffraction line (n = 1) in bcc iron (atomic radius 126 pm)…

A: Solution- Given-  first diffraction line (n = 1) in bcc iron (d= atomic radius 126 pm) , X-ray…

Q: Write the expression for the K, for each of the following reactions HCO31+ H₂O OH-1 + H₂CO3 [ I ][…

A: If  a equation is given-&gt; aA + bB &lt;----&gt; cC + dD Keq = [C]c[D]d/[A]a[B]b

Q: How many allylic hydrogen atoms are present in 1-ethylcyclohexene? 1 2 6

A: Given-&gt; 1-ethylcyclohexene

Q: Calculate the pH and pOH of a solution at 25°C, if [OH-] = 1.3 x 10-⁹ M. Answer to the hundredths…

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Q: Consider the reaction N₂(g) + 20₂(g)2NO₂(g) Use the standard thermodynamic data i the tables linked…

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Q: At a particular temperature, K= 3.75 for the following reaction. 50₂(g) + NO₂(g) = SO₂(g) + NO(g) If…

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Q: What is the class off compound is the structure  H3C - Br ?

A: CH3-Br belongs to

Q: Estimate AS for the following reactions: a. 2 C10H22 (1) +31 O2 (g) b. HCI (g) + NH3 (g) ---- NH4Cl…

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

Q: What is the numerical value of K, the equilibrium constant, for a reaction with a Δ Go of -56 kJ at…

A: Formula used:-  ∆G° = -2. 303 RT log K  ∆G° = -56KJ = -56×103 J  R = gas constant = 8.31 J /Kmol T =…

Q: b Calculate K (at 298 K) for this reaction. K =

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Q: A chemist prepares a solution of calcium sulfate (CaSO4) by measuring out 0.28 g of calcium sulfate…

A: Molarity is defined as number of moles of solute divide by volume of solution

Q: 35. Calculate the mass of nitrogen dioxide gas occupying a vol- ume of 2.50 L at 35 °C and 0.974 atm…

A: Given that: Volume of NO2 = 2.50 L T = 35°C = 35°C+273 = 308 K P = 0.974 atm

Q: How many molecules are in a 33.5L sample of oxygen gas at STP?

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Q: of methane in oxygen is CH,(g) + 2O2(g) → CO,(g) + 2H,O(I) The combustion spontaneous at 25 °C: What…

A: 1 .Combusion reaction is  reaction  in presence  of  oxygen  to give carbon dioxide  and water .…

Q: Check the option(s) in which a chemical reaction is spontaneous (AS univ> 0) only below a certain…

A: Spontaneous processes are those processes which take place on their own without providing any energy…

Q: Write an equation to show that hydrocyanic acid, HCN, behaves as an acid in water. + H₂O= + Write a…

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Q: A sample of 5.50 mol of gas in a 10.00 L container is at 45.0 °C. What is the pressure (in atm) of…

A: We can calculate the pressure of gas using the ideal gas equation. By substituting the values of 'n…

Q: How many grams of precipitate will form when Na2SO4 reacts with 25 mL of 0.50 M Ba(NO3)2?

A: The balanced reaction would be: Na2SO4 (aq) + Ba(NO3)2 → BaSO4 (s) + 2 NaNO3(aq)

Q: What is the correct IUPAC name for the compound shown here? H H * CH3 CH₂ — CH-CH3 CH3…

A: In this question we have to tell the IUPAC name of the compound.

Q: A student dissolved 5.00 grams of ammonium chloride in 95 mL of water. The water temperature went…

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Q: If the original gravity is 1.03 and final gravity is 0.96, calculate the percent alcohol content…

A: As per the guidelines, As you didn't specify question you want hence I'm answering first question…

Q: QUESTION 8 8. This is the first of four questions. Starting from 0.0010 M N205. 10.0 M NO2 and 10.0…

A: #Q.8: The equilibrium reaction is: 2N2O5(g) ⇌ 4NO2(g) + O2(g) Standard Gibbs free energy, ∆Go at 298…

Q: An arctic weather balloon is filled with 3.02 L of helium gas inside a prep shed. The temperature…

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Q: НО о I H+ A OH B

A: Step 1 : acid catalyzed intramolecular hemiacetal formation. Step 2 : acid catalyzed ketal…

Q: Which of the molecules shown below would be expected to have the lowest water solubility A CH3CH₂OH…

A: We have given three molecules. We need to tell which among them have the lowest water solubility.…

Q: Which of the following will have a AS°> 0 ? A. (two particles on each side -> four particles on one…

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Q: Which conformer of butane is the lowest in energy? H3C CH3 H3C CH3 A C H H H H3C н H3C H •H H B D…

A: Since we know that anti form of butane is most stable and lowest energy conformer...

Q: g) h) -ОН Br- -CI + NaOH ...CH3 NaOH CH3OH

A: NaOH act as a base so it taken most acidic hydrogen from both the compounds

Q: Calculate the [H*] and [OH] of a solution at 25°C, if pH = 7.85. (answer in scientific notation)…

A: Given :- pH of solution = 7.85  To calculate : [H+] and [OH-] at 25°C