QUESTION 20 What is the oxidation number of sulfur in K2S203? OA-2 OB. +2 OC. +3 OD. +4 OE +6 All the oxid

Q: For the Organic Chemistry topic of R and S, to make the structure R, does the prioritizing number…

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Q: [References] Pure iodine (114 g) is dissolved in 325 g of CCl4 at 65 °C. Given that the vapor…

A: Raoult's law :-  It states that, the relative lowering of vapor pressure of a dilute solution…

Q: What is the change in enthalpy when 4.04 grams H₂ reacts with excess oxygen according to the…

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Q: The balloon is placed in a freezer. The temperature changes from 100 K to 300 K. More gas is added…

A: Answer:- This question is answered by using the simple concept of gaseous laws which involves the…

Q: The equilibrium constant, K, for the following reaction is 0.440 at 341 K. NH₂HS(s)NH₂(g) + H₂S(g)…

A: Recall the given reaction,                     NH4HS s  ↔  NH3 g  +  H2S gThe equilibrium…

Q: 1. What would be the expected molarity of your base if you used 2.00 g of NaOH and dissolved it into…

A: Since, Molarity is the number of moles of solute dissolve in one litre of the solution. Thus,

Q: When 5.022 g of sodium hydrogen carbonate NAHCO2(s) reacts completely with 80.00 mL of acetic acid…

A: 1.) First we would calculate heat of reaction using formula :  q = m × C × ∆T  Here , m = Mass of…

Q: Use the values found in Thermodynamic Properties to determine AS°, AH° and AGO at 298 K for the…

A: Here we are asked to calculate the Gibbs energy change at 400K To do it we will first calculate the…

Q: B. Decomposition Reaction 1. Place 1 g of Mercuric Oxide in a dry test tube. Heat it strongly. When…

A: According to Q&A guidelines of Bartleby, we are supposed to answer only the first question out…

Q: The freezing point of ethanol, CH3CH₂OH, is -117.300 °C at 1 atmosphere. Kf(ethanol) = 1.99 °C/m In…

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Q: mm Hg 5) What pressure (mm Hg) is required to compress 196.0 liters of air at 1.00 atmosphere into a…

A: As per student's request I am answering only 5 question According to Boyles law, At constant…

Q: When sulfuric acid reacts with calcium hydroxide, calcium sulfate andwater are produced. The…

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Q: According to the following reaction, how many grams of oxygen gas are required for the complete…

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Q: Which ions remain in solution after PbI2 precipitation is complete?

A: Given  PbI2 precipitation   Find out ions in solutions after precipitation

Q: In aqueous solution, chlorine dioxide oxidizes iodide ion to iodine and chlorine dioxide is reduced…

A: This is second order rate equation with respect to ClO2. In case of second order, the plot between…

Q: Based on the Collision Theory, which of the following will cause an increase in the rate of the…

A: According to collision theory, in a chemical reaction, reactant molecules collide with one another…

Q: Use the following chart to determine the rate law of the equation A + B → P Experiment # [A] (M)…

A: Rate law equation gives the rate of a chemical reaction. Rate depends upon the concentration of…

Q: 2) A gas occupies 1.00 L at 0.00°C. What is the volume at 333.0 °C?

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Q: In the butadiene series, what causes the Amax value of the para-nitro phenyl case to be higher than…

A: Since you have asked multiple question , we will solve the first question for you. If you want any…

Q: The freezing point of water is 0.00 °C at 1 atmosphere. A student dissolves 13.51 grams of potassium…

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Q: Please depict whether the arrows represent the movement of 1 electron or an electron pair!

A: We have given two mechanisms and we have to draw the curved arrows for the steps of the mechanism.…

Q: If a sample of a gas is initially at 755 mmHg, 12.6 L, and 22.4 °C, what will be the new pressure if…

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Q: Galactose is a simple sugar formed when lactose, a carbohydrate in milk, is hydrolyzed. Individuals…

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Q: 42. Which of the following is not a functional fisomer? Me CHI,OH Н нь Н ОН Н Me OCH, 1

A: If a bond has some dipole moment then the bond will be polar. If bond has zero dipole moment then…

Q: Which is the stronger acid, I or II (see below)? H₂N-CH₂ VS. .. H₂N-CH-CH₂ Note: H₂N- protons are…

A: Acid is a species which can accept lone pair of electrons, while base is a species which can donate…

Q: Multistep reaction mechanisms Group Activity Treating (S)-2-butanol with HBr results in the…

A: First the given  Step 1: CH3CH(OH)CH2CH3 + HBr CH3CH(OH2)CH2CH3 + Br Step 2: CH3CH(OH2)CH2CH3 + Br…

Q: Combining 0.288 mol Fe₂O3 with excess carbon produced 18.0 g Fe. Fe₂O3 + 3C2 Fe + 3 CO What is the…

A: mole = massmlar masspercent yield =actual yieldtheoretical yield × 100Limiting reactant leads to…

Q: 1. TLC a) What are the results of loading too much compound to a TLC plate? b) What would happen if…

A: The question is on TLC and the amount of compound we need to add to it.

Q: 1. Using 12.0 mL 0.25 M CH3COOH-12.0 mL 0.25 M NaCH3COO, find the pH of the solution if we add 0.15…

A: Before reaction:  moles of CH3COOH = 0.25M *0.012L = 0.003 moles CH3COOH moles of CH3COONa = 0.25M…

Q: Part A Complete the sentences to identify each of the following molecules as polar or nonpolar. a.…

A: A question based on molecules that is to be accomplished.

Q: The figure below shows a portion of a GC chromatogram for a mixture of two aromatic compounds…

A: To find out the selectivity factor for the separation of A and B for the following chromatogram.

Q: 2. An almond weighs 0.823 grams. When the almond is burned in a calorimeter that co 124.2 grams of…

A: Since we only answer up to 3 sub-parts, we’ll answer the first 3. Please resubmit the question and…

Q: QUESTION 22 A student titrates 55.2 mL of a sulfuric acid solution which contains 1.40 M NaOH. The…

A: Since you asked multiple questions so as per Q&A guidelines of portal I solved first question…

Q: Which of the following set of quantum numbers (ordered  n ,  ℓ ,  mℓ ) are possible for an electron…

A: We have given seven set of quantum numbers (ordered  n ,  ℓ ,  mℓ ). We have to choose possible set…

Q: The electron configuration of a ground-state Co atom is [Ar]4s 13d 5. [Ne]3s 23d 7.…

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Q: 54. The total number of chiral centers in compounds are respectively,  and  55

A: 54. Chiral center are carbon atoms that are attached to four different substituents In the 1st…

Q: According to the following reaction, how many moles of sodium hydroxidewill be formed upon the…

A: Given reaction is, 2Na(s) + 2H2)(l)------>  2NaOH(aq) + H2(g) Moles of Na = 0.721 mol And water…

Q: what contribution was made by sir william crookes and why was this important for later discoveries…

A: He was British chemist and physicist. He discovered Thallium element. Development of fundamentals of…

Q: Draw, if possible, σ and π molecular orbitals (along the z axis) resulting from the following atomic…

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Q: Determine the number of formula units of Cr(ClO2)3 and moles of oxygen contained in 8.71 moles of…

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Q: A buffer made of weak acid [WA] and its conjugate base [CB] is most effective when a)pH = pKa of…

A: Acidic substance which release hydrogen water and BSc the substance which released height of the…

Q: A typical long-haul diesel truck travels an average of 72,000 miles annually. Diesel-powered trucks…

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Q: 1. Use the Hume-Rothery rules to determine whether you would expect magnesium to display unlimited…

A: We’ll answer the first question since the exact one wasn’t specified. Please submit a new question…

Q: © Macmillan Learning If the heat of combustion for a specific compound is -1140.0 kJ/mol and its…

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Q: Fe(s) + O2(g)  Fe2O3(s) If 1.05 g of iron is heated and placed in a bottle containing 0.0219 mol of…

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Q: Please indicate if the arrows represent the movement of  1 electron or a pair of electrons

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Q: A 44.0 g sample of an unknown metal at 100.0 °C is placed in a constant pressure calorimeter…

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Q: The lattice energy for KF is 821 kJ/mol. The enthalpy of hydration for K+ is -336 kJ/mol and the…

A: First we would calculate enthalpy of solution by using the lattice energy and energy of hydration of…

Q: Acid-base Color Standards indicator A B с D pH RRR RRR Y Y Y Y Y Y Y RROO BBBBVRRRR 1 2 C C CCCC с Y…

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Q: A laboratory procedure calls for making 590.0 mL of a 1.6 M KNO3 solution. How much KNO3 in grams…

A: Given, Molarity of KNO3 solution = 1.6 M = 1.6 mol/L Volume of the KNO3 solution = 590.0 mL = 0.59 L…