Analyze the given problem and show your complete and detailed solution. Use 2 decimal places. The radius of the oxygen anion (O“) at 140 pm (larger than the neutral atom, 66 pm). On the other hand, the magnesium atom loses 95 ppm from its 160 ppm radius when it loses two valence electrons, forming the magnesium ion. What is the attractive force of the two ions in nanoNewtons?

Q: 5a) Finn pH i 0,5 M HCOOH. 5b) Mix two different water-soluble salts. In which of the cases (1st and…

A: 5a) Given,  [HCOOH] /[H+]= 0.5 pH = ?

Q: What's More Activity 3.2 Identify and underline the amphoteric substances in this chart. Conjugate,…

A: Given chart is :  Identify and underline the amphoteric substances in this chart = ?

Q: A coffee-cup calorimeter contains 30 mL of water with an initial temperature of 24.8°C. An unknown…

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Q: What characteristic charge do atoms in the first column of the periodic table have when they become…

A: Given, The first column of the periodic table they become ions.

Q: Question 22 What are the R/S designations of the two stereocenters of L-threonine? OH A. 2R,3R В.…

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Q: For the reaction of gaseous substances with increasing gaseous molecules (from reactant to product…

A: Given data    ∆H° = +150 KJ/mole and ∆S° = 171 J/K-mole.

Q: Please solve in 30 minute by applying the enthalpy changes to these reactions: NO+O3 → NO2+ O2…

A: We have to arrange the given equation so that we get the require equation. The calculation is shown…

Q: When ammonium chloride dissolves in water, the solution becomes cooler. Is the solution process…

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Q: true or false A desirable solvent should be highly pure, commercially available, low viscosity and…

A: The given statement is " A desirable solvent should be highly pure, commercially available, low…

Q: Which statement is FALSE regarding the titration of a weak acid with a strong base? HA + OH" → A" +…

A: HA + OH−→ A− + H2O C. Before strong base is added, the pH is driven by the ionization of the weak…

Q: Which are TRUE for the use of indicators with dichromate? Dichromate is orange and changes color to…

A: Please find the below attachment.   Please rate if it is helpful for you.   Thank you.

Q: a.) Define what is a salt bridge  b.) what is the role of the salt bridge in galvanic cells? c.)…

A: Salt brige is used in galvanic cell, it has a great role in electrochemistry.

Q: what is the type of linkage below? is it reducing or non reducing?

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Q: Consider an electrochemical cell constructed from the following half cells, linked by a KCl salt…

A: Cathode is the electrode at which reduction takes place and anode is the electrode at which…

Q: 2. The rate constant for the first-order reaction: SO2Cl2(g) = SO2(g) + Cl2(g) is 2.2 x 10–5 s --1.…

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Q: STANDARDIZE THE Na2S203.5H20 WITH KIO3. Weight of KIO3 = 0.5325 g V of KIO3 = 250 mL N KIO3 V KIO3,…

A: #1: During the standardization of Na2S2O3.5H2O with KIO3, IO3-(aq) reacts with S2O32-(aq) according…

Q: A coffee-cup calorimeter contains 30 mL of water with an initial temperature of 24.8°C. An unknown…

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Q: A buffer is prepared by mixing 50.0 mL of 0.322 M HBrO and 65.0 mL of 0.275 M KBrO. What will be the…

A: Here we are required find the pH of buffer

Q: The Ecell of a reaction were found to be +0.78 V. What is the spontaneity of the reaction. none of…

A: Given that Ecell  of the reaction is +0.78V We have to predict whether the reaction is spontaneous…

Q: 5. a) How many stereocenters does this compound have? CH¸Br b). How many stereoisomers are possible…

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Q: Determine which element is oxidized and which element is reduced in the following reactions (be sure…

A: First we need to write the oxidation number of every atom in the equation

Q: 50. Solve this problem: A gas mixture containing oxygen, nitrogen and water vapor has a total…

A: The total pressure exerted by the gaseous mixture is the sum of the partial pressure of individual…

Q: A 40.00 mL sample of 0.1000 M diprotic malonic acid is titrated with 0.0900 M KOH. What volume KOH…

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Q: In the reaction below, which is the acid? CH;OH + NaH CH;O`Na* + H2 O a. CH3OH O b. CH;O°NA* Oc H2 O…

A: Bronsted-Lowry acid-base theory: The Bronsted-Lowry acid-base theory states that the acid is a…

Q: Draw a plausible mechanism for the reaction shown below. Provide explanations for each step in the…

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Q: Answer

A: To write the IUPAC Name for the following compound .,

Q: Which of the following gas samples have the greatest average molecular speed at 25°C? A) Kr B) CH,…

A: Given,  The gas, which have the greatest average molecular speed at 25 °C is :

Q: Determine if the synthesis of sulfuric acid is a spontaneous reaction at 25°C. Chemical Equation: S…

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Q: 4. From the following data at 298.15 K as well as the data tables (see file below), AH , (kJ mol"!)…

A: We know, heat of enthalpy of a reaction = total heat of formation of products - total heat of…

Q: If the leg is broken, it is gently bent and suspended with a piece of cloth Choose The effects of…

A: Q1) If the leg is broken it shouldn't be bent because it will cause more pain and swelling and also…

Q: Give the IUPAC name of this compound.

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Q: What is the hybridization of the Nitrogen labeled C? C A H2N N. a. sp3 O b. SPO4 Oc sp2

A: here we are required to find the hybridization of the nitrogen labelled C

Q: 4. From the following data at 298.15 K as well as the data tables (see file below), ΔΗ reactic (kJ…

A: We use the formula below to find the standard enthalpy of reaction, ∆Horeaction.  ∆Horeaction =…

Q: Which is not a property of buffers? Buffers resist changes in pH when acids or bases are added or…

A: Buffers are used to resist change in pH. We we add some amount of acid or base, pH not changes much.…

Q: Balanced Equation for Dissolution Compound Ksp Expression Ksp Solubility Mg3(AsOa)2 Mg3(AsOa)2 (s) =…

A: To find Ksp and solubility.

Q: 1e) Carbon 14 (C-14) is an isotope of carbon that contains? More protons than Carbon-12. More…

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Q: In this activity you will use the virtual lab to determine the concentration of a strong monoprotic…

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Q: Draw the major product of this reaction? ? one equivalent Br2 Br (A) (B) Br Br Br (C) (D)

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Q: (Q84) With respect to the following unbalanced redox equation that takes place in a basic…

A: The given unbalanced redox reaction is: Zn(s)+NO3-aq→ZnOH42-aq+NH3g

Q: Write the chemical formula for the ionic compound formed from each pair of ions. (a) Mg2+ and I- (b)…

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Q: An unknown sample containing mixed alkali (NaOH, NaHCO3, or NazCO3) was analyzed using the double…

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Q: 9. What is the CORRECT equilibrium constant expression of the given chemical reaction: HF(aq) +…

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Q: TYPEWRITTEN ONLY PLEASE FOR UPVOTE. DOWNVOTE FOR HANDWRITTEN. DO NOT ANSWER IF YOU ALREADY ANSWERED…

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Q: Which of the statements below are true for the titration of Fe2+ with standard Ce4+? I         The…

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Q: For the salt magnesium carbonate (MgCO₃),  the addition of H₃O⁺ will cause the solubility to…

A: pH of solution is defined as negative logarithm of hydrogen ions present in solution.

Q: What is the hybridization of the Nitrogen labeled A? C D N. H2N Ez

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Q: (b) Using the equation below, explain what happens to maintain the pH of the solution: A (a H* (ag)…

A: The given equation is  HA (aq)  ⇔H+(aq)    +    A-(aq)

Q: Which Newman projection of 2-methylbutane represents the least stable conformation of the compound?…

A: If both the groups are 180o to each other in different carbon atom then it is called staggered…

Q: Which of the following species have BOTH standard heats of formation AND standard heats of…

A: Enthalpy of reaction is calculated by subtracting enthalpy of product minus enthalpy of reactant.

Q: 5.5 Show that, for a perfect gas, (aUaS)y = T and %3D

A: The two relations can be derived from the following expression which can be obtained from the…