CHEMWORK A system releases 5.17 x 10 cal of heat and has a calculated AE of -54.0 kJ. How much work was done on the system? kl Submit Show Hints

Q: 3-methyl-1-pentene - (1) HI (2) t-BUOK, I-BUOH 1. H₂, Ni 2. EtOH, heat Product in Steo 1: Product in…

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Q: For each chemical reaction in the table below, decide whether the highlighted reactant is a…

A: An acid are species which give off hydrogen ion when dissolved in water and base is a species which…

Q: 2) a. Calculate the pH of a 100.0 mL buffer made by combining 0.24 M acetic acid (CH₂COOH, K₂=…

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Q: Ben ran through the experiment and found the best-fit line listed below for his standard calibration…

A: Given , absorbance of solution = 0.432  Volume of 0.002 M iron(III) nitrate = 5.00 mL Volume of…

Q: PH7 4.75 Excess OH No! NaOH 5. Using the plot from the above question, identify the point where the…

A: The question is based on the titrations.  we are titrating a weak acid nitric acid with a strong…

Q: The products of a strong acid/strong base reaction are A) Water B) Salt C) All of the above

A: A neutralization reaction is a chemical reaction between an acid and a base that produces salt and…

Q: Which of the following combinations can be used to make a buffer? (Assume equal volumes are used.)…

A: Option B is correct

Q: Arrange the following compounds in order of boiling point, from lowest to highest (based on…

A: Higher the intermolecular forces, higher will be the boiling point. Hydrogen bonding increases the…

Q: A 15.0-mL sample of 0.100 M Ba(OH)2 is titrated with 0.125 M HC1. Part A Calculate the pH for five…

A: Given that, Volume of  Ba(OH)2 = 15 mL  Molarity of Ba(OH)2 = 0.100 M  Molarity of HCl = 0.125 M…

Q: If a buffer solution is 0.230 M in a weak base (Kb = 4.7 × 10 − 5 ) and 0.540 M in its conjugate…

A: The solution which resist any change in their PH is called buffer solution. Given , concentration of…

Q: Consider the following Equilibrium. C(s) + H₂O(g) → H₂ (g) + CO (g) AHran = 70 kJ Use the dropdowns…

A: Le Chatelier's principle states that if a stress is applied to a system at equilibrium, the system…

Q: When 18.0 mL of a 7.66 x 10-4 M silver nitrate solution is combined with 25.0 mL of a 8.32 x 10 M…

A: Solubility product quotient, Qsp is the product of the concentrations of the products, each raised…

Q: Choose all possible values of each quantum number for the outermost electron in an Rb atom.

A: we have to find out the quantum number of outermost electron of Rb.

Q: Gaseous butane (CH. (CH₂(CH₂)₂CH₂) will react with gaseous oxygen (O₂) to produce gaseous carbon…

A: Answer: Limiting reagent is the reactant that exhaust first in the chemical reaction and decides the…

Q: (4) Determine the vibrational contribution to Cy for one mole of HCN, where ₁ = 2041 cm ¹,₂ = 712 cm…

A: For a linear molecule such as HCN, there are 3N-6 vibrational degrees of freedom, where N is the…

Q: Please label the IR spectra.

A: Infrared spectroscopy deals with the analysis of various peaks that represent the various functional…

Q: 16. With two chiral centers present, we can realize stereoisomers that are (R,R), (S,S), (S,R), and…

A: Diastereomers are the isomers that are non mirror images of each other , these  stereoisomer have…

Q: Complete the table below. Round each of your entries to 2 significant digits. You may assume the…

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Q: 3. Design a synthesis for the following reaction. Include all reagents and in the correct order. OH…

A: When a ketone is react with grignrad reagent followed by acidic hydrolysis gives 3 degree alcohol

Q: Determine the pH of a solution that is 5.2 *10-2 M in HClO4 and 5.0*10-2 M in HCl.

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Q: DIA For each combination of acid and base below, what is the relative pH at the equivalence point of…

A: 1) Acidic Salt- strong acid+ weak base  2)Basic Salt - strong base + weak acid  3) Neutral Salt -…

Q: Solve correctly. (Gpt/ai wrong answer not allowed) What volume of O2 gas, measured at 778 mmHg and…

A: First calculate moles for Al. Use mol to mol ratio to calculate the moles of O2 and use that moles…

Q: A certain reaction with an activation energy of 125 kJ/mol was run at 555 K and again at 575 K. What…

A: T1 = 555 K T2 = 575 K Ea = 125 kJ = 125000 J

Q: Draw the product formed when cyclohepta-1,3,5-triene (pK = 39) is treated with a strong base. H H…

A: Since, there is multiple questions present. So I am solving only first question for you according to…

Q: A student prepares a 1.0M aqueous solution of 4-chlorobutanoic acid (C₂HCICO₂H). Calculate the…

A: Concentration of 4-chlorobutanoic acid = 1M

Q: 10 9 2 Н ull - 00 2 Н 8 7 6 5 4 2 Н 3 ЗН Z ЗН 1 0

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Q: 1 127 -47 If the moment of inertia of H lis 4.31 x 10 kg m determine the bond length of HI and the…

A: Given here the moment of inertia of H1I127.  We are asked to calculate the bond length and…

Q: The magnesium and calcium ions present in seawater ([Mg2+]=0.030M and [Ca2+]=0.011M) can be…

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Q: give 5 application of coordination chemistry in real life

A: Coordination chemistry is a branch of chemistry that deals with the study of coordination compounds,…

Q: (a) Calculate the percent lonization of 0.00820 M hydrosulfuric acid (K, 9.5e-08). % lonization - %…

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Q: If 801 J of heat is available, what is the mass in grams of iron (specific heat= 0.450 J/g °C) that…

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Q: Define the following terms 26. Activation energy 27. Exothermic 28. Specific heat 29. Entropy

A: Thermodynamics is branch of chemistry in which we deal with amount of heat evolved or absorbed by…

Q: One family of disinfection byproducts that result from the reaction of chloramines with natural…

A: Lewis structure is an electron-dot structure in which the electrons are represented by dots. The…

Q: List six quantum numbers which describe the state of an excited electron on the p sub shell in…

A: The quantum numbers that describe the state of an excited electron on the p subshell in potassium…

Q: 1. Determination of amino acid nitrogen by formal and iodometric titration methods. Scope,…

A: The determination of amino acid nitrogen is an important analytical technique in biochemistry and…

Q: Calculate the molar and gram solubility of the insoluble salt, MX (where M = +1 and X = -1), Ksp =…

A: Ksp = 8.1×10-4 Molar solubility  (s)=? Gram solubility (g/L) =?

Q: An element, Spencerecium, has two isotopes.  Spencerecium-145 has a relative abundance of 85 % and…

A: Abundance of spencerecium -145 = 85%  Abundance of spencerecium-140 = 15%

Q: When the following equation is balanced properly under acidic conditions, what are the coefficients…

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Q: Describe how you would make 1.50 liters of a 1.36 M solution of HCI solution from a 12.1 M stock…

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Q: CI

A: The question is based on the concept of organic synthesis.  We need to synthesize the product using…

Q: The equilibrium constant, Kc is 0.0183 for the reaction at a certain temperature:               2…

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Q: 0.01 M of methylamine has a pH of 11.269 what is the pka for methylamine?

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Q: Which equation below is correct when HCI is added to a buffer solution of HCO₂H/NaHCO₂? NaHCO2(aq) +…

A: A buffer solution is the solution which resist the change in pH on addition of acid or base.

Q: Each row of the table below describes an aqueous solution at about 25 °C. Complete the table. That…

A: Answer: pH is actually tells us about the power of hydronium ion concentration in the solution and…

Q: In an experiment, you fill a heavy-walled 6.00-L flask with methane gas, CH4.  If the flask contains…

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Q: Please write full electronic configurations of all transitions metals or the 1-st row. Do not use…

A: Transitions metals or the 1-st row. Sc(21) to Zn(30)

Q: A saturated solution of magnesium fluoride, MgF2, was prepared by dissolving solid MgF2 in water.…

A: Given,  Concentration of Mg2+ = 1.18 x 10-3 M

Q: What is the boiling point of water at an elevation of 1.55×104 ftft ? Express your answer with the…

A: Atmospheric pressure at sea level = 760 mm Hg For every 1000 ft increase in elevation, there is a…

Q: Solve correctly. (Gpt/ai wrong answer not allowed) A sample of ideal gas at room temperature…

A: When temperature is unchanged then the gas obeyed Boyles law.

Q: High-pressure liquid chromatography (HPLC) is a method used in chemistry and biochemistry to purify…

A: This question is answered by answered by using the simple concept of dimensional analysis using…