What is the mass in grams of precipitate formed when 250.0 mL of 0.160 M ZnCl₂ is mixed with excess KOH in the following chemical reaction? ZnCl₂ (aq) + 2 KOH (aq) → Zn(OH)2 (s) + 2 KCI (aq)

Q: A sealed 10-liter vessel contains a certain amount of ethanol. The vapor density above the liquid is…

A: Enthalpy change of vaporization is calculated by calusius clapeyron equation :

Q: For the reaction 2HBr(g) → H₂(g) + Br₂ (1) AG 112 kJ and AH This reaction i The entropy cl 72.6 kJ…

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Q: Which alcohol structure shown below would be less acidic? Explain why. FO.H Br Br Br H

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Q: Decide whether a chemical reaction happens in either of the following situations. If a reaction does…

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Q: The chemical formula for beryllium sulfide is BeS.A chemist measured the amount of beryllium sulfide…

A: Since, Moles is the ratio of mass to the molar mass of that atom or molecules. Thus,

Q: 4. Draw both chair conformations of 1S, 3S-dibromo-5R-methylcyclohexane. Indicate which conformation…

A: We know in chair form of cyclohexane the confirmation in which bulky group is present at equatorial…

Q: If the oxidation number of the O in CO is -2, What is the oxidation number of the C?

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Q: OH OH 5 steps

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Q: 6. Calculate the molality of each of the following solutions: (a) 14.3 g of sucrose (C12H22011) in…

A: Calculate the molality of each of the following solutions: (a) 14.3 g of sucrose (C12H22O11) in…

Q: When ammonium (NH4*) is placed in water, a chemical reaction occurs and an equilibrium is…

A: Given :

Q: For each chemical reaction listed in the first column of the table below, predict the sign (positive…

A: Entropy is a measure of the randomness of the system. The entropy change in a chemical reaction can…

Q: For each system listed in the first column of the table below, decide (if possible) whether the…

A: Entropy is the degree of disorderness or degree of randomness. As Temperature increases, entropy…

Q: Draw the Lewis structure of C₂H₂Cl₂ (both Cl atoms on one C atom) and then determine if the molecule…

A: we have to draw the Lewis structure of C2H4Cl2 in which both Cl atoms are attached to same carbon…

Q: I need help with my homework. Can you help me number 6 question, please?

A: 6). Given data : Concentration of NaCl = 1.50 M = 1.50 mol.L-1 Mass of NaCl = 146.3 g

Q: Classify each chemical reaction: 2K (s) + Cl₂(g) → 2K Cl (s) reaction K Br(aq) + AgNO3(aq) →…

A: Answer:- This question is answered by using the simple concept of different types of chemical…

Q: Which of the following half-equations of oxidation- reduction reactions is NOT correct?

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Q: Which of the following bonds has the longest bond length? LA HILA Li Be 11 12 Na Mg 19 20 x₂ K Ca Sc…

A: Given bonds: C-C C-O C-N C-F We have to find the bond that has the longest bond length.

Q: How many atoms are in 45.8 grams of Al? And How many moles are in 4.75 x 1024 molecules of HCl?

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Q: When heated, KCIO, decomposes into KCl and O₂. 2 KCIO, 2 KCI +30₂ If this reaction produced 77.9 g…

A:

Q: Aluminum hydroxide is used for the relief of heartburn, sour stomach, and peptic ulcer pain and to…

A: ♣ Limiting Reactant : Limiting reactants are those reactants that are consumed completely in a…

Q: Given the following: (i) The barrier to rotation about the C-C bond in ethane is 12 kJ/mol (ii) The…

A: Given data :  (i) The barrier to rotation about the C-C bond in ethane is 12 kJ/mol (ii) The barrier…

Q: Determine the products for the elimination reactions in the next two questions. HCI H 1 1 1…

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Q: 4) A compound called vinyl chloride has a composition of 38.43% carbon, 4.838% hydrogen, and 56.72%…

A: we have to find the molecular formula of polyvinyl chloride

Q: PROBLEM: A chemist Starts with 1.75g of c7h603 and 58 ch3oh and producrs 1.42g c8h803…

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Q: For the reaction A(aq) + B(aq) C(aq) + D(aq), the equilibrium constant is 20.3 at 25oC and 36.8 at…

A: we have to calculate Gibbs free energy change (in kJ) of the reaction at 75oC

Q: Identify the HOMO in the MO diagram of CN- (shown below) A) o (2s orbitals) B) o (2pz orbitals) Пр…

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Q: Which of the following species are not nucleophiles:  Na+,  Cl-,  +CH3,  :NH3,  HO:-?

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Q: 1. Ammonia and hydrogen chloride react to form solid ammonium chloride: NH3 (g) + HCl(g) → NH4Cl (s)…

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Q: Identify the functional groups in the following compounds. (List functional groups in the order they…

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Q: (d) An electron in a hydrogen atom transitions from a 4p orbital to a 1s orbital and emits a photon…

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Q: Calculate the grams of solute needed to prepare each of the following solutions. 300.0 mL of a…

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Q: ANSWER THE FOLLOWING: 1. DRAW THE STRUCTURE OF M-IODOPHENOL 2. DRAW THE STRUCTURE OF…

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Q: The chemical formula for cesium chloride is  CsCl. A chemist determined by measurements that 0.0800…

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Q: An analytical chemist is titrating 143.3 mL of a 0.7900M solution of aniline (C6H5NH₂) with a…

A: Here we have to determine the pH of solution when 143.3 ml of aniline solution is titrated with…

Q: Americium-241 is used in smoke detectors. It has a first order rate constant for radioactive decay…

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Q: In the molecule shown below, which of the labeled C,C single bonds is the longest? CH CH₂ -CH=CH- X…

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Q: For each system listed in the first column of the table below, decide (if possible) whether the…

A: Here we have to explain change of entropy of the system undergo above changes respectively-

Q: HO. H + H₂N- Trace of acetic acid ethanol

A: Organic reactions are those in which organic reactant react to form organic product. In the given…

Q: If the concentration of A1³+ in solution is 0.10 M, the concentration of the sulfide ion must be…

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Q: < Question 10 of 12 2 What mass of precipitate (in g) is formed when 52.3 mL of 0.500 M FeCl3 reacts…

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Q: What is the total volume of gaseous products formed when 70.0 liters of propane (C3Hs) react…

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Q: CALCULATE the molarity, mM and mOsm of a NaCI solution that has a concentration of 0.818162 g/dL.…

A: NaCl is completely dissociated in water to give 2 ionic particles which are Na+ and Cl-.  Molar mass…

Q: How many grams of sulfur are required to react completely with 139 L of carbon monoxide at 51°C and…

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Q: What is the purpose of placing a filter paper inside a beaker or developing chamber for TLC? Among…

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Q: Calculate the number of moles of He atoms present in 6.17 g of He.

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Q: Each of the insoluble salts below are put into 0.10 M hydrobromic acid solution. Do you expect their…

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Q: ) What is the pH of a 50.0 mL buffer containing 0.25 M NH3 and 0.45 M NH4NO3?

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Q: STARTING AMOUNT X How many gram of Cal: are needed to completely precipitate the Ag+ ions as Agl…

A: Calcium iodide reacts with silver nitrate to form calcium nitrate and precipitate of silver iodide.…

Q: The chemical formula for cesium chloride is CsCl.A chemist determined by measurements that 0.0800…

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Acid Base Titration

An acid-base titration is the method of quantitative analysis for determining the concentration of an acid and base by exactly neutralizing it with a standard solution of base or acid having known concentration.