From the data at 25 °C: Compute the standard heat of formation of FeO (s) and Fe₂O3(s). Fe₂O3(s) + 3C (graphite) → 2Fe(s) + 3C0 (g) AH° = 117.3 kcal, Fe0(s) + C(graphite) → Fe(s) + CO(g) AH° = 37.3 kcal, C(graphite) + O₂(g) → CO₂(g) AH° = -94.05 kcal CO(g) + O₂(g) → CO₂(g) AH° = -67.63 kcal,

Q: Which of the following elements would you expect to have the largest first ionization energy?…

A: Given elements: Be Li K Ca We have to find the element that has the largest first ionization energy.…

Q: OMe OMe

A:

Q: Octane is a primary constituent of gasoline, burn in air according to the following reaction: C8H18…

A:

Q: Name H3C H3C H3C² H3C Structure CH3 CH3 H₂C. HC H3C CH3 CH3 CH3 CH3

A: IUPAC nomenclature rules for alkane Identify the longest continuous carbon chain. Identify the…

Q: To prepare a stock solution of EDTA, 73 grams of EDTA were mixed to 500 mL of distilled water. What…

A:

Q: Choices 0.20 mol/L H₂SO3(aq) 0.10 mol/L H₂SO4 0.20 mol/L H₂SO3(aq) Stronger Acid 0.10 mol/L H₂SO4

A: The acid which have higher H+ ions in given amount of water will have more stronger acid as compare…

Q: What is the enthalpy change for heating ice from 266 K to steam at 378 K? Assume Cp = 37.7 J K-1…

A:

Q: Chemistry hypochlorous acid (HCIO) is a weak acid with pka=9.21. for a 0.10 M aqueous solution of…

A: Given :  Concentration of hypochlorous acid (HOCl) = 0.10 M  pKa of hypochlorous acid = 9.21

Q: b) Indicate whether or not H+ ions are capable of oxidizing at standard state conditions? Pb to Pb²+…

A: Dear student,since the given question is a multiple question. Hence I solved first question…

Q: Black Forest Biologicals, a biotech startup, has a promising Alzheimer's drug candidate Compound…

A:

Q: (20) Select the major product that would result from the reaction below. CH3-CH=CH2 + H₂O H₂SO4 a.…

A:

Q: Specify the formal charges (both sign and magnitude) on the atoms labeled a-c. H₂C=CH-C 1) PUE b 2)…

A:

Q: Draw the most stable resonance form for the intermediate in the following electrophilic substitution…

A:

Q: Calculate the hydronium ion concentration of a solution with a pH = 4.47. Enter your answer in…

A: Given-> pH = 4.47

Q: A 0.77 mol sample of PCl, is put into a 2.4 L vessel and heated. At equilibrium, the vessel contains…

A:

Q: Learning Task 1 Write TRUE if the statement is correct and FALSE if the statement is wrong. 1. Iron…

A: Task 1: We have to tell whether the given statements are true or false.     N.B.: According to the…

Q: The following chemical reaction takes place in aqueous solution: Fe(NO3)₂(aq) + (NH4), S (aq) → FeS…

A:

Q: The reaction H₂ + 1₂ 2HI has a K,= 46.5 at 23.3°C What is its K₂? R=0.08206 Lan Select one O a…

A: For given equilibrium Reaction -  H2 + I2 <===> 2HI  Equilibrium constant,Kc = 46.5  And…

Q: If 0.400 moles of NO (g) and 0.200 moles of O2 (g) are reacted in a 2.50 m3 vessel at 298K, how many…

A: First write down the reaction of NO with O2 and using mol to mol ratio, calculate mol of NO2 gas…

Q: 3.Propene can be reacted with hydrogen gas through an addition reaction to form propane. Estimate…

A:

Q: 0.50L of a buffer is made from 2.5M citric acid and 0.5M sodium citrate how many moles of OH are…

A: Here we are required to find the mole of  hydroxide ion present in 3M NaOH.

Q: Q 12 Name the three types of chemical bonding and explain differences with respect to their methods…

A: Chemical Bonding refers to the formation a chemical compound by the formation of  of a chemical bond…

Q: A chlorous acid buffer containing 0.75 mol of HClO2(aq) and 0.75 mol of NaClO2(aq) in 1.00 L has a…

A:

Q: One mole of an ideal gas is expanded isothermally twice its initial volume a) Calculate AS b) What…

A: Change in entropy ∆S of isothermal process can be determined as follows: ∆S=nRlnV2V1…

Q: Arrange the following compounds in increasing order of their boiling points, CH3CHO, CH3CH2OH,…

A: see below

Q: Indicate, by letter(s), the position(s) on the ring at which substitution occurs when the aromatic…

A:

Q: 3. Determine the pH of the following solutions: a. 1.9 M HClO2 solution (Ka = 1.1x10-2) b. 2.8 M…

A: In this question, we will determine the pH of the following two solution one is acidic solution and…

Q: 10. ( IL Y How many millimeters are in 176.0 inches? How many picograms (pg) are in 1.46 x 10³…

A: Given, 10) how many millimetres are in 176.0 inches = ? 11) how many picograms (pg) are in 1.46 ×…

Q: Materials engineers often create new alloys in an effort to improve the properties of an existing…

A: Here we have to determine the mol % and Wt % of Zn in the following given alloy Zn0.844Cd0.156O.

Q: Learning Task 1 Give a short description of the electrochemistry in each type of battery. CYS.7 Type…

A: According to bartleby guidelines we're supposed to answer first question among these questions So…

Q: (17) What is the IUPAC name for the compound shown below? CH₂ 11 CH₂CH₂CH₂CCH₂CH₂ a.…

A: see below

Q: • Classify each of the substances. • Compare their approximate pH levels. • Compare their ability to…

A:

Q: References Use the References to access important values if needed for this question. In the winter,…

A: Fahrenheit , degree celcius and Kelvin are three units of temperature and can be interconverted by…

Q: Directions Write the half-cell reactions. - 1. Fe(s) + Cu²+ (aq) 2. 2 Mg(s) + O2(g) → Fe2+(a + (aq)…

A:

Q: Write about lead and its effect on humans

A: Lead (Pb) is a heavy, soft, bluish metal, and occurs in nature in the formof ores. Once Pb is mined,…

Q: sample of gas contains four gases (He, Ne, At, and Xe) with the following partial pressures : He (43…

A:

Q: Given the balanced redox reaction is as follows: 2Cr(OH)3(s) + 6ClO-(aq) → 2CrO42-(aq) + 3Cl2(g) +…

A:

Q: percent of a given sample of the compound A decomposes in 60.0 min? Assume first-order kinetics. If…

A:

Q: At a potential of -1.0 V (versus SCE), carbon tetrachloride in methanol is reduced to chloroform at…

A: Given information: At - 1.0 V (versus SCE) 2 CC14 + 2 H+ + 2e- + 2 Hg(l) ----> 2 CHC13 +…

Q: 2. Acetic acid has a K₂ of 1.8 x 105. What is the concentration of H* ions in a 0.20 M acetic acid…

A:

Q: Concentration (mol/L) 1.0 x 10-1 H₂O* Logarithmic 10² 10⁰ 10-² 104 10-6 10-8 10-10 10-12 10-14 10-16…

A: From the above picture we can see the pH of the solution is 1.00  We to find out the concentration…

Q: Multiply the following and express your answer in appropriate scientific notation, and a correct…

A: we have to report the answer with correct significant figures in scientific notation

Q: (Q122) Which of the following is a unit used for measuring the biologically effective radiation dose…

A: Hence option (c) is correct answer

Q: A. Picric acid (2,4,6-trinitrophenol) is slightly soluble in water but is readily soluble (with…

A: Strong acids soluble in weak base like NaHCO3 Electron withdrawing groups enhance the acidic nature…

Q: Nitrogen shows distinct differences from phosphorus and the rest of Group 15. For compounds of N are…

A: Given: Nitrogen and phosphorus both exist in Group 15. We have to find the reason why the compounds…

Q: The rate constant of a first-order reaction is 4.60 x 10−4s−1 at 350 degree Celsius. If the…

A: Here we are required to find the temperature for which the rare constant is 8.8×10-4 s-1

Q: 50. Define both elementary and non-elementary reactions. For the former, describe how we write…

A: According to the guidelines, only one question is allowed to be solved at a time .    So i am…

Q: A solution is prepared that is initially 0.49M in pyridine (C5H₂N), a weak base, and 0.40M in…

A:

Q: A chemist fills a reaction vessel with 0.260 g calcium phosphate (Ca(PO4)₂) solid, 0.393 M calcium…

A:

Q: Using the electron-pushing diagram shown, draw the product of the reaction, including nonbonding…

A:

Solutions

Solutions can be considered as homogeneous mixtures which contain two or more than two chemical substances. The chemical substance which is the greater part is defined as solvent. And the chemical substance that is dissolved in a solvent is referred to as solute. Solution chemistry plays an important role in chemistry since it supports many commercial applications of solutions.