Mass of bromobenzene used (g) 4.567 Saved Amount of bromobenzene used (mol) 0.02909 Saved Mass of magnesium used: 0.490 g Amount of magnesium used (mol) 0.0202 Saved Select the limiting reagent Saved magnesium Benzoic acid theoretical yield (g)

Q: Example: A solution buffered at pH 3.90 is needed for a reaction. Would formic acid and its salt, so...

A: Given: A solution buffered at pH 3.90 is required for a reaction. ka of formic acid is 1.8 x 10-4 

Q: Balance the following chemical equation (if necessary): Ca(OH),(s) + H,PO,(aq)→ H,O(1) + Ca,(PO,),(a...

A:

Q: The following results of alkalinity determination for 100 ml sample titrated with 0.02N H,SO4. (Answ...

A: The alkalinity of a water sample is defined as the measure of the amount of OH-, HCO3-, and CO32- pr...

Q: O Provide the major product of the following reaction. AICI3

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Q: 2. Consider the given reaction. 2BRF,(g) = Br,(g) + 5F,(g) If the respective equilibrium concentrati...

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Q: Burning 1.02 g of a fuel causes the water in a calorimeter to increase by 13.7°C. If the calorimeter...

A: Given data : Mass (m) = 1.02 g Increased temperature (ΔT) = 13.7 °C Heat capacity (C) = 3.09 kJ/°C

Q: ry or higher- molecules, salts) e Ta: Formula → name formula Binary? Covalent or Polyatomic ion? Cat...

A: The following given compounds can be classified in the basis of atoms or polyatomic ions involved in...

Q: Shown in the image is a diagram for the voltaic cell with the overall cell reaction being Al + Pb2+ ...

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Q: Determine the moles of CO, produced when 4.04 moles of O, reacts with CH, according to the following...

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Q: Calcium carbonate (CaCO3) decomposes upon heating to form calcium oxide (CaO) and carbon dioxide. A ...

A:

Q: QUESTION 8 Which of the following spectroscopic measurements is not consistent with cyclohexanecarba...

A: Please note- As per our company guidelines we are supposed to answer only one question. Kindly repos...

Q: Determine the Ph of a 0.020 M solution of oxalic acid, H2C2O4. What is the concentration of C2O4 ion...

A: Oxalic acid is diprotic acid and Ka1 = 6.5 * 10-2 and Ka2 = 6.1 * 10-5 [Oxalic acid] = 0.020 M      ...

Q: Mark and John, two vinegar enthusiasts, are each tasked to determine the acetic acid content of thei...

A: Given: Mass of KHP = 0.540 g Molecular weight of KHP = 204.22 g/mol Purity of KHP = 99.4% Volume of ...

Q: HO H3CO. X Y IR MS 'H NMR 13C NMR

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Q: 7. Which pH is consistent with the following results? Indicator Color result Thymol blue yellow Brom...

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Q: In a laboratory activity, Ca(OH)216) is completely dissolved in distilled water. This solution is th...

A: Ca(OH)2 is a strong base HCl is a strong acid. So, Neutralization reaction between Ca(OH)2 and HCl i...

Q: Determine the degrees of freedom at each indicated point on the phase diagram. (b) Temperature Press...

A: A question based on phase diagram that is to be accomplished.

Q: A 30.0 mL sample of 0.175 M HCOOH (Ka 1.8 X 10-4), is titrated with 0.150 M LİOH. Part A: Which of t...

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Q: 3. Which of the following statement/s is/are correct? 1. 3.00 N H2SO4 is equivalent to 6.00 M H2SO4-...

A: The relationship between molarity and normality is: Normality=molarity ×valence ......(1) The formul...

Q: 7. Draw a tiration curve for the analysis of 50.00mL solution of KOH, that is 0.1000 M and that for ...

A: Hydrazine is a weak base and KOH is a strong base.

Q: the Ph of a 0.050 M weak acid solution is 5.25. Calculate the Ka of the acid.

A: Given, pH of weak acid= 5.25 [weak acid ] =0.050 M Ka = ?

Q: Based on the reaction given on the picture, how will the following conditions affects the equilibriu...

A: Effect of Concentration:- If we increases the concentration of reactant at equilibrium , the equilib...

Q: If you have 13.5g of Cl2 and dissolve in 1.5 L. of cyclohexane what is molality of solution, density...

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Q: Q3. A sample consisting of mono atomic ideal gas at I atm and 25C" expand adiabatically and reversib...

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Q: What type of intermolecular forces must be overcome in converting each of the following from a liqui...

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Q: What mass of AlCOH)3 , is produced from 30ml 1.0M Al(NO3)3

A: Aluminium nitrate produces Al3+ ions. These ions bind with OH- from water.

Q: 1. 0.785 moles of a certain gas fill a balloon at 1.5 atm and 301 K. What is the volume of the ballo...

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Q: a) Predict the structure of the major product(s) formed in each of the following reactions: (i) Br2 ...

A: Since you have posted multiple sun part questions, the answer for first subpart is given below. Kind...

Q: 4 In the determination of sulphate ion concentration in natural water a turbidimeter was calibrated ...

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Q: normality of NaOH.

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Q: 21. The binding of aspartate to different subunits of ATPase is an example of a. Negative cooperativ...

A: 21 .C .. 22 D 

Q: Es specific conductance?

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Q: 8. Assume that the following exchangeable cations are present in a 25 gram sample of a soil Cation С...

A:  1 hectare means = 1010 grams

Q: The following initial rate data are for the oxidation of arsenate ion by cerium(IV) ion in aqueous s...

A: The sum of the exponent term in the rate law for a chemical reaction is known as the order of the re...

Q: 4. The oxidation state for carbon ion in b. CCl a. C H.

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Q: Mark and John, two vinegar enthusiasts, are each tasked to determine the acetic acid content of thei...

A: Titration analysis [Here KOH is the standardized titrant that has been first standardized using KHP]

Q: Using the table for lonic Radii for Several Cations and Anions c. Cell edge length of ferrous oxide ...

A: Given, Ferrous oxide has rock salt structure . density of ferrous oxide =5.75gcm3

Q: Problem 26: • Draw the mechanism for the meta-nitration of phenol. Indicate all the possible resonan...

A: Mechanism of meta-nitration of benzene is shown below:

Q: Substanc Molar Mass (g/mol) e 14.01 16.00 Al 26.98 Fe 55.85 FesNz -195.57 AIN 40.99 Directions: Use ...

A: No of moles is Mass of substance divided by its Molar mass

Q: Determine the formula and name for a compound that is 42.9% carbon and 57.1% Oxygen.

A:

Q: 5. Write the dissociation equations for each of the following. Determine the Ka for the cation and t...

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Q: Calculate the pH of a buffer solution prepared by mixing 25 mL of 0.5 M lactic acid and 75 mL of 1.0...

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Q: 1. Balance the equation: - Cl: + KOH KCI + KCIO,+ H:O 2. The chemical name for Ag:CrOa 3. How many p...

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Q: For the following expressions, how many significant figures will the answers have: a) (0.235)(0.0035...

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Q: 05: A kerosene sample has boiling range of 180-225°C and specific gravity of 0.793. This product has...

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Q: For the complex cation [CrCl2 (NH3 )4 ]+ (a) What is the oxidation number of the metal ion? (b) Wh...

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Q: 1. Balance the equation: - Cl: + KOH - KCI + KCIO, + H:O 2. The chemical name for Ag:CrO. 3. How man...

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Group 15 elements

The elements of group 15 are phosphorus, nitrogen, bismuth antimony, and arsenic. The most abundant element which is present in the air is nitrogen and the percentage of nitrogen present in the air is 78%. In the free state, the elemental nitrogen is present as diatomic gas (N2). In the organic matter obtained from plants and animals, phosphorus is the dominant element present. In nucleic acids, phosphate groups are present. Phosphates are also found in teeth and bones. The other elements arsenic, bismuth, and antimony are found as sulfides. Arsenopyrite, bismuth glance, and stibnite are examples of sulfides of arsenic, bismuth, and antimony respectively.