What is the cobalt(II) ion concentration in a solution prepared by mixing 351 mL of 0.372 M cobalt(II) nitrate with 409 mL of 0.267 M sodium hydroxide? The Ksp of cobalt(II) hydroxide is 5.92 × 10 – 15. (Co**] = M

Q: 3. Suppose a person walk 80 m east and then 50 m west. What is the person's average velocity? (At = ...

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Q: A 20.0-mL sample of 0.125 M HNO3 is titrated with 0.150 M NaOH. Calculate the pH for at least seven ...

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Q: What mass of LP gas is necessary to heat 1.3 L of water from room temperature (25.0 °C) to boiling (...

A: 62.7 gm of LP will combust to heat water from 25⁰C to 100⁰C.

Q: At constant T and P, in which of the following situations will the reaction be product-favored at lo...

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Q: Which starting materials could be used to synthesize propanoic acid? HO CH3CH2CN CH3CH2CHO CH3CH2CH2...

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Q: Determine equilibrium concentration of NOCI in the reaction given the following initial concentratio...

A: Given :  Kc  = 4.601 x 104  [NO] = 0.300 M [Cl2] = 0.500 M

Q: consider the following exothermic reaction at 0.00 °C and 1.00 atm Se04 (g) Se(g) + O2 (g) , Kc = 2....

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Q: Determine the moles of ammonia present in 9.7 mL of O.51 Mammonia. Give your answer to four decimal ...

A: Given data: The volume of ammonia is V=9.7 mL=9.7×10-3 L. The molarity of ammonia is M=0.51 M=0.51 ...

Q: Suppose a 0.036M aqueous solution of sulfuric acid (H,SO,) is prepared. Calculate the equilibrium mo...

A: Given, molarity of sulfuric acid = 0.036 M

Q: consider the following exothermic reaction at 0.00 °C and 1.00 atm Se04 (g) Se(g) + O2 (g) , Kc = 2....

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Q: In the recovery of iron from iron ore, the reduction of the ore is actually accomplished by reaction...

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Q: The acid dissociation constant K, of carbonic acid (H,CO,) is 4.5 x 10. Calculate the pH of a 4.8M s...

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Q: AP Question // Q 6) Write a balanced net ionic equation for the reaction between barium nitrate and ...

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Q: 10. Three atoms, A-C, are indicated in the structure below. To which atom is a nucleophile more like...

A: Nucleophile = nucleus loving  Nucleophile attacks to that atom which has deficiency of electrons.

Q: Draw a curved arrow mechanism and predict the product. H EN CH3 H3C Create OscerSketch Answer 1 Comp...

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Q: Which of the following structures is NOT a contributing resonance structure A that explains the regi...

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Q: If a student is starting with diethylmalonate then the base they would use to generate the enolate w...

A: These are example of nucleophilic addition reaction 

Q: theoretical yielc

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Q: What is the pH of a buffer solution that is 0.15 M puridine, C6H5N and 0.08 M pyridinium bromide C6H...

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Q: Which of these is not aromatic? (A) (B) (C) (D) CH CH

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Q: 8. Circle the substrate that will result in an alkene that could be consider both the Hoffman and Sa...

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Q: What is the normality of a solution containing 50g HCl in 1.5 L of solution?

A: Given :  Mass of HCl = 50 g  Volume of solution = 1.5 L  To calculate :  Normality of solution 

Q: If a sample of nitrogen gas in a sealed container of fixed volume Is heated from 25°C to 150°C, the ...

A: The container is a sealed container, Volume remains constant.  Given that the temperature is increas...

Q: NABHA PCC OCH CH,OH CH;Cl2 1) LIAIH. ether 2) H,0 2. PCC LOCH3 CH,CI, 1) DIBALH, ether H+ 3. OCH3 2)...

A: ->NaBH4 is reducing agent but can not reduce ester. ->PCC can oxidize alcohol to carbonyl comp...

Q: percent composition

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Q: One of the major problems in food chemistry is to make food gels maintain its shape and rigidity. Su...

A: Interpretation- We have to suggest a way tha thow we can maintain gel strength if the polysaccharide...

Q: Which arrow-pushing mechanism best explains activation of acetyl chloride for Friedel-Crafts acylati...

A: The arrow pushing mechanism that best explains the activation of acetyl chloride for friedal crafts ...

Q: What is the energy of 3.25 x 10–3 moles of 2.02 nm X-ray photons?

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Q: Which reaction schemes is best to give the product? HO. NO2 O The following reaction scheme: CH3 KMN...

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Q: 1. Circle the substrate that will not result in a tertiary alkyl chloride when treated with HCI. A В...

A: In the given all three reactions, H —Cl is added. 

Q: The equilibrium constant for the reaction Br2(g) + Cl2(g) ↔ 2BrCl (g) is 86. If the initial concentr...

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Q: Identify the functional group of the given molecule and indicate the classification if there is any....

A: The functional group of the given molecule is 

Q: 7. What percentage of the compound magnesium nitrate hexahydrate is the nitrate ion?

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Q: The rate constant for this zero-order reaction is 0.0350 M ·s=1 at 300 °C. A → products How long (in...

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Q: What is the normality of a solution containing 50g HCl in 1.5 L of solution?

A: Given :- mass of HCl = 50 g               volume of solution = 1.5 L  To be calculated :- normality ...

Q: The molecule CO2 reacts with H2O (L) and form H2CO3 according to the equation. CO2 (aq) + H20 (L) H2...

A: We have to find the value of equilibrium constant and concentration at equilibrium. 

Q: What is the molecular formula of the compound?

A: chemical formula is a way of presenting information about the chemical proportions of atoms that con...

Q: A 27.0 mL sample of 0.497 M formic acid (HCHO2) is titrated with 0.497 M NaOH. Calculate the pH afte...

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Q: During the decomposition of CaO2(s) into Ca(s) and O2(g), 100.0 mL of gas is collected by the displa...

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Q: 4. Calculate the change in pH that results from adding 25 mL of 0.010F HCI to 500ml buffer solution ...

A: Given,  [NH3] = 0.25 M  [NH4Cl] = 0.15 M  Volume of the buffer in mL = 500 mL  Volume of HCl added =...

Q: We prepare a solution with the following ion concentrations: [Pb²*] = 1.0x10 M and [C] = 0.1 M. If k...

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Q: n kilograms is

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Q: How many milliliters of 1.58 M HCl are needed to react completely with 23.2 g of NaHCO 3 (K = 84.02 ...

A: Given, HCl(aq) + NaHCO3(s) ➝ NaCl(s) + H2O(l) + CO2(g) Molarity of HCl solution = 1.58 M = 1.58 mol/...

Q: A student attempts to determine the buffer capacity of a solution by titrating 40.0 mL of solution w...

A: No moles is determined by total volume added in the solution

Q: 5. Show the mechanism for the Syl reaction between (2R,3R)-2-bromo-3-methylpentane and water.

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Q: In your own words, differentiate between an endothermic and exothermic reaction in one complete sent...

A: In this question, we have to differentiate between an endothermic and exothermic reaction in one com...

Q: + COz cg) 3:) Use the following thermo chemical equation to solve the problems that fro llow. 7 CaO ...

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Q: When the following skeletal equation is balanced under basic conditions, what are the coefficients o...

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Q: 3) а. Draw the oxocarbenium ion that is formed as an intermediate in the following reaction: но OH O...

A: The oxygen of atom of ketal group gets protonated which is then follwed by ring opening to produce o...

Q: 4. 3 O 2 and 4 O 1, 2, 4, and 5 O 3, 4, and 5 O 2, 3, and 4

A: For the Clausen condensation reaction atleast two alpha hydrogen required one can removed to form en...

Precipitation Titration

Precipitation analysis is used to analyze drugs, and to measure the salt content in food and beverages. It is an important concept from the examination point of view many practical questions are asked on the topic. This topic is significant in the professional exams for both undergraduate and graduate courses, especially for