You want to prepare a buffer solution with pH equal to 3. How many grams of NaF (41.99 g/mol) should you add to 250 mL of 0.350 M HF to achieve your desired pH?

Q: 1) Predict the product of the following reaction by filling in the empty box provided. Also, use…

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Q: The following statements are true, EXCEPT: (a) The purpose of a titration is to determine the…

A: Titration is a analytical method to fnd out the unknown concentration of a solution by using another…

Q: Select the element whose +2 oxidation state is least stable in water. O Ni Co Ov Zn

A: Hydration energy: when one mole of ionic crystal is dissolved in water the water molecules are…

Q: when hydrogen and oxygen are burned to produce water. heat is produced at 58 kcal mol of water. A…

A: We are given with the heat produced for 6.02×10-23 molecules = 58 KCal. So , to find heat produced…

Q: Check your mass calculation. Check your AHneutralization Calculation. Did you report your data to…

A: The balanced equation for the neutralization reaction of HCl(aq) and NaOH(aq) is: HCl(aq) + NaOH(aq)…

Q: When a reaction is exothermic and the products have more entropy than the reactants, the reaction is…

A: A reaction is said to be spontaneous when its ΔG value is negative.  ΔG = ΔH - TΔS ΔG is the change…

Q: For the reaction below, which one of the following possible products is most likely to form?…

A: Organic compounds can be defined as the compounds containing carbon and hydrogen atoms. For example…

Q: 1. What quantity of heat is required to raise the temperature of 450 grams of water from 15°C to…

A: Given Mass of water (m) = 450 g Initial temperature (Ti) = 15°C Final temperature (Tf) = 85°C Amount…

Q: 4. A certain gas obeys the equation PV, = RT + a,P + a¿P² where Vm is the molar volume, and a, and…

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Q: standard enthalpy of the reaction for the hydrogenation of etl - CH3CH3 (g) . pl B.) -136.94 kJ/mol…

A: 11)  Given,  □Hf(CH3CH3) = -84.68 kJ/mol □Hf(CH2CH2) = 52.26 kJ/mol □Hrxn = = [□Hf(CH3CH3)] -…

Q: EFFECTS OF SALTS ON pH (Lewis Acids and Bases) Determine the effect on the pH when zinc(II) chlorate…

A: When we add an acidic salt to water, the pH of water decreases due to the formation of H+(aq) ions…

Q: en deciding between 1,2-addition, 1,4-addition and the major reaction pathway, there's ually an…

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Q: Draw the major product of this reaction. Ignore inorganic byproducts. NH2 1. NaNO2, H2SO4 2. CuBr

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Q: Complete the followsing reactionse a. CH20H + CH3CH2-ott Ho Cit2OH CHO otH +Cu+ CH20H CH3 + ClHz CH…

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Q: In the equation below, which substance is the Brønsted-Lowry base? H H-N-H + H → H-N-H + 0-H proton…

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Q: Consider the following equation: 3C2H2(g) ↔ C6H6(g) ΔGof(C2H2, g) = +209.2 kJ/ mol; ΔGof(C6H6, g) =…

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Q: b). A wastewater contains 7.2 mg L-1 phosphorus and is treated with 15 mg L-1 aluminum in the form…

A: Solution -

Q: Balance the following redox reaction under acidic conditions. H2S(2) + NO3 (aq) → S8 (be) What is…

A: Balanced the reaction under acidic condition then after answer the given question---

Q: The pH of 0.10M HNO3 is When a solution has pOH = 5.30, the [OH-] is

A: pH = -log[H+]  pOH = -log[OH-]

Q: d) Brz, H2O 00r to e) 1. BH3 2. H2O2, OH H2O 1. CH;CH2MgCl 2. H20 as 82.06 to Os0 (cat. amt.) NMO h)…

A: Syn hydroxylation occur with the help of OsO4/NMO...

Q: Chlorine dioxide (CIO,) is a disinfectant used in municipal water- treatment plants. It dissolves in…

A: First write rate with given values and then solve for order of ClO2. Consider order for ClO2 is x…

Q: Given the following equation: 3 NO2 (g)+ H2O(l)2 HNO3 (aq)+ NO(g) Assume STP a. What mass of…

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Q: A 100.0 ml. solution of 0.0200 M Fe³* in I M HCIO, is titrated with 0.100 M Cu*, resulting in the…

A: Given that, a 100.0 mL solution of 0.0200 M Fe3+ in 1 M HClO4 is titrated with 0.100 M Cu+,…

Q: Give the IUPAC name for the 2 compounds

A: The IUPAC name of the compound can be written on the basis of the number of carbon atoms in the main…

Q: Of the compounds below, which is most likely to form in the following reaction? Me ELOH Me Me…

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Q: Consider the reaction: Cu2*(aq) + 4NH3(aq) Cu(NH3)4²*(aq) Kf = 1.7 x 1013 What is [Cu2+] remaining…

A: Each CuSO4 is dissociated in water to give 1 Cu2+(aq) ion. Hence moles of CuSO4 = moles of Cu2+(aq)…

Q: Which of the following compounds has the lowest pka value? он NO2 https://ibb.co/r0gbs4We O Me OH…

A: Acid is substance which release hydrogen ions and base is substance which release hydroxyl ions when…

Q: Which one of the following is NOT true about chloramine? O a) HCIO and CIO- are the primary…

A: HClO and ClO⁻ are oxidizers, and the primary disinfection agents of chlorine solutions. Chloramines…

Q: A waste heat exchanger is used to absorb the energy from the complete combustion of hydrogen sulfide…

A: To determine what volume of water undergoing a temperature change of 52 degrees Celsius.

Q: Which is an industrial reducing agent frequently used to reduce iron from its ore? O Oxygen O…

A: Answer: Iron is found in nature in form of oxide ores. During the reduction process we take off this…

Q: Assume that you are given a solution that was prepared as follows: 2.50 g of NaNO3, 2.50 g of…

A: Pb2+ in Pb(NO3)2 can be first separated from the solution by dissolving it with solution containing…

Q: Which would NOT protect iron from corrosion? Electroplating with Zn Attaching to Ni Electroplating…

A: 1) The zinc coating serves as physical protection which prevents rust and corrosion. 2) Nickel…

Q: 4. (a) Write a synthetic scheme for bis(acetyleacetonate)copper complex. Draw the structure of the…

A: Bis(acetylacetonate) copper complex is the coordination compound with the formula, Cu(O2C5H7)2.

Q: What is the molarity of the resulting solution when 300. mL of a 0.400 M solution is diluted to 800.…

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Q: Lalaulate the eH of a 3 lox1D M la/OH),s Selution.CafoH)is. isa strory buse.

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Q: What quantity of energy, ΔH, can be obtained from roasting of 35g of zinc sulfide ore? ZnS(s) +…

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Q: What is the pH of a mixture of acid 0.21M HY (Ka - strong) and 0.5M HX (Ka - 0.7x10)

A: Concept: since the second acid is weak  acid and 1st one is strong thane thier pH can be calculated…

Q: Calculate the cell potential for the galvanic cell in which the reaction Cd(s)+Cu2+(aq) ⁢->…

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Q: 1. Calculate the entropy change, AS", for the following reactions using tabulated standard entropy…

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Q: Calculate the molarity of a sodium hydroxide solution if 50.0 ml of this solution was com- pletely…

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Q: What is the equilibrium constant expression for the reaction shown below? CACO3(s) R Ca²+ (s)ɛ +…

A: What is the equilibrium constant expression for the given reaction---

Q: How much heat is needed to melt 10 g of ice?

A: formula for this is, heat = mass*latent heat of water  as ice melts to water so water considered

Q: Question 17. On a mass spectrum, an analyte peak is observed at m/z 300. If this respective analyte…

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Q: N2O4 (g) ⇌ 2NO2 (g)    You are observing this reaction in a closed container. What will happen to…

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Q: Name this compound, including stereochemistry: HOĆ CH2CH;CH2OH H

A: Note : Since you have posted multiple questions, we are entitled to answer the first only. Please…

Q: 3) Fill in the diagrams below with electrons corresponding to each element. Carbon Охуgen Hydrogen

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Q: Exercise 9.83 In the first chapter of this book, we described the scientific approach and put a…

A: # We can predict magnetic behaviour of any molecule by Lewis theory. If it has unpaired electrons,…

Q: Potential energy (kJ) 1) The graph below is a potential energy diagram for the hypothetical…

A: From the graph it is clear that energy of reactants are 40 kJ and energy of products are 10 kJ.

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.