In the standardization of HCl solution, a pale pink end-point using phenolphthalein indicator was reached using 26.2 mL of 0.125N NaOH solution in neutralizing 13.1 mL of a HCl solution. What is the normality of the acid solution?

Q: 5Br (aq)+BrO3(aq)+6H*(aq)-3Br₂(aq)+3H₂O(l)semantics. If the rate of disappearance of Br (aq) at a…

A: Given rate of disappearance of  Br2 is 0.260 , we have to find rate of  appearence of Br2

Q: QUESTION 11 An electrochemical reaction has a standard cell potential of 0.600 V. If 2 moles of…

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Q: 29. sugar (molar mass a. 100.25 °C b. 0.25 °C Calculate the boiling point of a solution containing…

A: Boiling point of a pure solvent can be increased by the addition of non-volatile solute. It is a…

Q: The solubility product constant for a certain metal hydroxide, M(OH)2 is Ksp = 3.0 × 10−21. Its…

A: Given: Ksp of M(OH)2 = 3.0 × 10−21 Molar mass = 242.94 g/mol

Q: QUESTION 21 Calculate the temperature at which the reaction becomes spontaneous: Cl2 (aq)-Cl2 (9).…

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Q: 8. Compare the reactivity of methyl benzoate and phenol under bromination conditions. Classify each…

A: 8. We have to compare the reactivity of bromination between phenol and methyl benzoate. We know that…

Q: How many moles of chloride ions are contained in a 908 mL solution of 0.198 M MgCl2? Report your…

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Q: g) h) OH Br- ام -CI + NaOH O CH3 NaOH CH3OH

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Q: 11) Consider the following equilibrium at 295 K: NH4HS(s) NH3(g) + H₂S(g) The partial pressure of…

A: This question is related to chemical equilibrium. Kp is equilibrium constant in terms of pressure…

Q: Which of the following happens when a reaction reaches dynamic equilibrium in a closed system? O The…

A: In the given question we need to tell about the suitable condition that take place when reaction…

Q: Consider the following chemical reaction: What is AH for the following reaction? 2Mg(s) + O₂(g) →…

A: Given, 2Mg(s) + O2(g) → 2MgO(s) ∆H = -1204 kJ 4MgO(s) → 4Mg(s) + 2O2(g) ∆H = ?

Q: A first-order (n = 1) reflection from the plane of a cubic crystal was observed at a glancing angle…

A: Bragg's law is used to calculate interplanar distance, wavelength and glancing angles in a crystal.…

Q: Using the systematic approach, calculate the pH and the equilibrium concentrations of ALL aqueous…

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Q: Question 1. Match the following. a. Alpha particles b. Beta particles c. Positrons d. Gamma rays e.…

A: a) Alpha particles → Helium nuclei b) Beta particles   → Same as electrons for β- and Opposite of…

Q: Please Explain...

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Q: Currently the concentration of CO2 in our atmosphere is about 420 ppm. What is the mole fraction of…

A: one ppm is equal to mole fraction × 10^6   Mole fraction × 106 = ppm Therefore, in 420 ppm mole…

Q: F Ot HN ... OH Bn نامے OH I Bn Hcl **** ... OH 03, MecH, CH₂ L₂ NaBH, Na DAC HO 23°L но 2 H₂, Pd/c S…

A: Reaction 1 : Ozonolysis of alkenes, intramolecular imine formation, imine reduction using NaBH4.…

Q: Some N₂ gas is mixed with some O₂ gas, and the sketch below shows a representative sample of the…

A: Mole fraction is calculated as shown below: Mole fraction = number of moles of 1 component  / Total…

Q: Determine the volume of 8.88 x 1023 atoms of Ne at 9.25 atm and 512K 0 14.2 L 11.3 L 6.70 L 3.35 L…

A: Mole concept: The number of molecules or atoms present in the one mole of the substance is equal to…

Q: How many allylic hydrogen atoms are present in 1-ethylcyclohexene? 1 2 6

A: Given-> 1-ethylcyclohexene

Q: In the laboratory a "coffee cup" calorimeter, or constant pressure calorimeter, is frequently used…

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Q: Give a clear explanation handwritten answer...

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Q: The oxidation of 25 mL of a solution containing Fe²+ requires 3.0 × 10¹ mL of 0.0315 M K₂Cr₂O7 in…

A: For balancing the reaction, look at the reaction closely, there are 2 Cr atom is present at the left…

Q: The energy for the following reaction was measured to be -1033.0 kJ/mol. Mg(g) + 2 CI(g) → MgCl,(s).…

A: Solution - According to the question - Given - Reaction - Mg (g) + Cl2 (g) MgCl2 (s) , Energy of…

Q: Some N₂ gas is mixed with some O₂ gas, and the sketch below shows a representative sample of the…

A: we need to calculate the partial pressure of each gas

Q: Write the rate law for this reaction.

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Q: Predict the products of the following Sx2 reactions. a) ONa + CI b) Br c) + NaCN Br d) CI…

A: Here, we have to find the products of the given SN2 reactions.

Q: Can facial and meridional isomers be chiral? justify

A: We have to show facial and meridional isomers to  be chiral?    We know if there is no plane of…

Q: Calculate the pH of a solution of 2.64 M HCN solution. The K₂ for HCN is 6.2 x 10-10.

A: Given : concentration of HCN solution = 2.64 M  Ka for HCN = 6.2 × 10-10  To calculate :  pH of…

Q: A Chemistry Student Trainee at a certain University Chemical Laboratory was instructed by the…

A: Given: Normality of NaOH = 0.25 N And the volume of NaOH solution should not exceed 40.0 mL i.e.…

Q: How many molecules are in a 33.5L sample of oxygen gas at STP?

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Q: A typical aspirin tablet contains 325 mg acetylsalicylic acid. Calculate the pH of a solution that…

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Q: Draw structural formulas for the two compounds you could use to prepare the amine shown by reductive…

A: Carbonyl compounds on treatment with amines produces imines which on reduction with NaBH3CN under…

Q: What is the oxidation state of the element other than oxygen in Ga 20 3? +1 +2 +3 +4 +5

A: Oxidation number: • Oxidation number of atoms in pure element or Atoms in free or uncombined…

Q: QUESTION 23 For the reaction: A+B CAH=30 kJ. AS = 50 J/K. The reaction is: 01.spontaneous at all…

A: Given-> A + B ---> C     ∆H = 30 KJ = 30000 J (1 KJ = 1000 J)           ∆S = 50J/K

Q: At 25°C, what is true about ka and kb for a weak acid and its conjugate base? O a. Ka x Kb = 1.0 ×…

A: Ka and Kb are the dissociation constant  of weak acid and its conjugate base. And product of Ka and…

Q: Shown here are two aqueous solutions containing various ions. The volume of each solution is 200 mL.…

A: Given : Volume of each solution = 200 ml  Each sphere is considered as 0.100 mol

Q: 7. Draw the structure of the reactant that produces the molecules shown for each of the following…

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Q: Discuss briefly how a glucometer works

A: GLUCOMETER USES TO DETERMINE THE CONCENTRATION OF GLUCOSE OR,SUGAR IN BLOOD.MOST DEVICES USE…

Q: Use a table of Standard Reduction Potentials to predict if. If a reaction will occur, write a…

A: First we would check reduction potential of Cr metal and F2 (g) to predict which would tend to get…

Q: I need help with the mechanisms on these two reactions please :) NaOH A b. 1. Draw a complete arrow…

A: b.)

Q: A sample of vinegar requires 21 mL of 0.105N base solution for an endpoint with phenolphthalein…

A: Since you have posted multiple questions we can solve only first question for you according to the…

Q: If the original gravity is 1.03 and final gravity is 0.96, calculate the percent alcohol content…

A: As per the guidelines, As you didn't specify question you want hence I'm answering first question…

Q: H.C. CH3 CH3 CH3

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Q: . How much heat is absorbed when 60g of mercury (II) oxide reacts? 2HgO2Hg + O₂ AH = 181.4 kJ

A: Given :-  2HgO → 2Hg + O2       ∆H = 181.4 kJ  To calculate :-  Amount of heat absorbed by 60 g of…

Q: Calculate AGO at 600. K for using the following data: AGO = H₂O(g) + 1/2O₂(g) → H₂O2(g) H₂(g) +…

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Q: What is the correct structure of product Y in the following reaction? CH₂ OCH CH₂ CH₂ Ch -CH₂ FOCHCH…

A: We have find out the correct structure of product Y.

Q: What strategy makes sense for this overall transformation? ch9_d5_q2.pdf Zaitsev elimination…

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Q: at t= 0 s, you have a pure sample of an unknown substance. at t= 167s, 36.8% of the substance…

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Q: A first-order (n = 1) reflection from the plane of a cubic crystal was observed at a glancing angle…

A: Braggs equation to calculate interatomic distance between two atoms. It is used to calculate…