If 7.90 kJ of heat is needed to raise the temperature of a sample of metal from 15 °C to 20. °C, how many kilojoules of heat will be required to raise the temperature of the same sample of metal from 25 °C to 45 °C?

Q: ОН н ОН н H₂N "I 5 - 10 min 22 °C Acetic Acid Acetic Anhydride heat ОН Н NaBH4 Ethanol 22°C ОН н H2O

A: The given reaction is a condensation reaction followed by acetylation on the amine group.  The first…

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Q: Consider the following reaction where Kc = 10.5 at 350 K: 2 CH₂Cl₂ (9) ⇒ CH4 (9) + CCl4 (9) A…

A: The expression for the reaction quotient for the given reaction is as follows: Q = CH4 CCl4CH2Cl22

Q: uestions to review individually. Number answers are given for mathematical problems at the end o e…

A: Given reaction , 4Al + 3O2 ----->2Al2O3 To calculate mass of Al2O3

Q: 11.4 g of KBr (MM = 119.00 g/mol) are added to a 500.0 mL volumetric flask, and water is added to…

A: Given -> Weight of KBr = 11.4 gm  Molar mass of KBr = 119.00 g/mole  Volume= 500.0 ml = 0.500 L…

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A: The given data is as follows: The concentration of stock solution M1 = 7.000×10-5 mol/L The volume…

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Q: When light passes through a colored solution placed in a 1 cm thick cell, the ratio of the incident…

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Q: 3. Lead crystallizes in a face-centered cubic unit cell with an edge length of 495 pm. What is the…

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Q: The elements nickel (Ni) and boron (B) form two binary compounds with the following compositions:…

A: Here two elements Ni and B combine with each other to form two compound. Grams of Ni per grams of B…

Q: PRE-LABORATORY ASSIGNMENT You must finish the pre-laboratory assignments before beginning the…

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Q: the energy lost when 79.9 g of water cools from 86.4 °C to 3.2 °C

A: We have to use the formula- Q=mc∆Twhere m=mass(g)C=heat capacity(calgoC)∆T=Temp changeQ=energy(cal)

Q: Given the following IR data, what is the most likely identity of the compound? Wavenumber (cm¹)…

A: IR spectroscopy is an important tool for the determination of the functional group in the compound.…

Q: the energy needed to heat 5.65 g of water from 5.5 °C to 60.6 ° 4 [5] ΑΣΦ ? J

A: he energy needed to heat 5.65 g of water from 5.5 °C to 60.6 °C can be calculated using the…

Q: onsider the table. Metal Tm (K) ΔHfus (kJ/mol) Tb (K) ΔHvap (kJ/mol) Li 454 2.99 1615 134.7 Na 371…

A: Given, Tm (K)=302 ΔHfus(kJ/mol)=2.10 Tb (K)=942 ΔHvap (kJ/mol)=66 To calculate, ΔSfus and ΔSvap

Q: If the density of solid chromium is 7.15 g/cm³, what is the packing efficiency of Cr if it adopts a…

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Q: which one is correct: a) The entropy change of the system can be negative in a spontaneous process.…

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Q: 7) How many isomers can you construct for the molecular formula C,H,O? Use a red ball with two holes…

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Q: A 0.520 g sample of an unknown nonelectrolyte compound is dissolved in 4.31 g of lauric acid (Kf =…

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Q: How could 250 mL of a 4.0 M solution of hydrochloric acid (HCl) be prepared from a 10.0 M solution…

A: The formula of dilution is  C1V1 = C2V2 Where, C1 and C2 are the concentrations of stock and diluted…

Q: 1.48. Use the approximation (1-x)¹1 + x + x² + to determine an expression for the virial coefficient…

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Q: At 700 K the equilibrium constant for the reaction CCl4 (g) C(s) + 2Cl₂(g) is Kp = 0.76. A flask is…

A: The expression for the equilibrium constant for the given reaction is as follows: CCl4g  ⇌  Cs  +…

Q: Sulfuryl chloride is often used in radical chlorination instead of the less expensive chlorine…

A: Advantages of using sulfuryl chloride over chlorine: •sulfuryl chloride is highly selective reagent…

Q: Part G the energy lost when 18.3 g of gold cools from 224 °C to 113 °C ΕΙ ΑΣΦΑΛ Submit Request…

A: Part G18.3 g of gold cools from 224 °C to 113 °C .We have to calculate energy lost during the…

Q: hich of the following compounds is consistent with the ¹H NMR spectrum shown? 1H, di 2H, m 8 (A) 1H,…

A: Given

Q: 2+ d. 4H3O+ (aq) + 2Cl¯ (aq) + MnO₂ (s) ⇒ Mn²+ (aq) + 6H₂O(1) + Cl₂ (g) 2+ [Mn²+ ] [C1₂]…

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Q: 5. Complete the following reaction scheme. If any reactions do not work, explain why. NaOMe Br 1. Li…

A: In the given reaction first step is addition reaction according to Antimorkonikov's rule.The Gilmann…

Q: Aluminuim, Al(s) Copper, Cu(s) Gold, Au(s) Iron, Fe(s) Silver, Ag(s) Titanium, Ti(s) Compounds…

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Q: Part F the energy needed to heat 12.6 και of silver from 112 °C to 275 °C IVE ΑΣΦΑ ? cal

A: The formula to calculate heat energy is given by: Q = mcΔT where: Q = heat energy (in calories) m =…

Q: Consider the following equilibrium: Fe(OH)3 (s) + 3H* (ag) Fe3* (ag) + 3H₂O (1) a) Given a Kap of…

A: Ksp is the solubility product constant which is determined as the equilibrium constant for a solid…

Q: Commercial concentrated aqueous ammonia is 28% NH3 by mass and has a density of 0.900 g/mL What is…

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Q: What is the mole fraction, X, of solute and the molality, m (or b), for an aqueous solution that is…

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Q: For the given processes, determine if AHxn and ASin are positive, negative, or zero. CH₂(g) +20₂(g)…

A: Answer:- This question is answered by using the simple concept of calculation of enthalpy of…

Q: An aqueous solution containing 10.0 g of starch per liter has an osmotic pressure of 3.8 mm Hg at 25…

A: According to the question, The mass of the solute (starch) = 10.0 g The volume of the solution = 1…

Q: 15. Which of the compounds in each reaction will act as the acid and which as the base? Draw the…

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Q: 1. Provide the information missing in the reactions below. Stereochemistry and Regiochemistry may be…

A: Oxidation of alkenes with the help of ozone can give alcohols, aldehydes, ketones, or carboxylic…

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Q: Freezing point depression can be used to experimentally determine the van 't Hoff factor of a solute…

A: “Since you have posted a question with multiple sub-parts, we will solve the first three sub-parts…

Q: When 273.55 grams of water are produced, 1.5429 × 1025 particles of potassium hydroxide were…

A: Answer: This question is based on stochiometric calculation where by using stoichiometric…

Q: Evaluate the specific rate constant for the reaction at the temperature for which the data were…

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Q: how many joules are required to raise the temperature of 124 grams of water from 21.3 C to 45.6 C

A: According to the question, The mass of the water is given by = 124 grams The initial temperature is…

Q: For the following reaction; 2A+ B+ 2C --> D+E [A] = 0.65M, [B] = 0.23M, [C] = 0.3M A is second…

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Q: What is the atom in the image

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Q: Aldehydes and ketones react with one molecule of an alcohol to form compounds called hemiacetals, in…

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Q: What is the mass productivity for the reaction shown? The density of ethyl L-lactate is 1.03 g/mL.…

A: By mass productivity, it is meant to determine the percent yield. The percent yield is calculated…

Q: 3b) What is the C=C-H bond angle in ethyne? 3c) What hybridization of carbon in ethyne?

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Q: Nitrogen monoxide, NO, reacts with bromine, Br₂, to give nitrosyl bromide, NOBr. 2NO(g) + Br₂(g) →…

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Q: Q = mcAt water (c = 4.18 J/gC) A2B(s) has a molar mass of 37.5 g/mole A water based solution of 750…

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