Most environmental colloids have a negatively charged surface at pH 7 due to their lower pHo values. Which one of the following statements is true?

Q: 3. How much heat is needed to melt 15 g of iron?

A: Given that -  Mass of iron = 15 g  The heat of fusion of iron = 11.7 kJ/mol   And , atomic mass of…

Q: Construct a well-illustrated sketch for a voltaic cell using the following redox reaction: Mn + Ca -…

A: Given: Electrolytic cell: Mn2+ + Ca ------> Ca2+ + Mn

Q: I. Balance each half reaction in basic solution. 2. NO → NO3 4. MnO2 → Mn2O3

A: Balanced the givem half reaction in basic solution ---

Q: 30.0 mL ethanol to make a 5.88 of ethanol in butanol?

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Q: Differentiate aldehydes from ketones based on chemical structure.

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Q: Check the box next to each molecule on the right that has the shape of the model molecule on the…

A: Stereochemistry is branch of chemistry in which we deal with the arrangement of atoms in three…

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: Answer regarding the energy diagram for the bonding pi MOs that apply   a. Draw the diagram and…

A: Solution- HOMO- Highest occupied molecular orbitals.

Q: 5. Complete the chart for the molecular compounds listed. Molecule Lewis Name of Bond angle Polarity…

A:

Q: Define the following: 1. solvent 2. mixture 3. solution

A: (1) Solvent -  Solution is formed by combination of atleast two Substances, one of them has higher…

Q: A voltaic cell is constructed in which the following cell reaction occurs. The half-cell…

A: The given voltaic cell reaction is: F2(g)+Cd(s)→2F-(aq)+Cd2+(aq)

Q: Cabanatuan City PATA INTEGRATED BASIC EDUCATION SENIOR HIGH SCHOOL DEPARTMENT e Andins Makeag a…

A: Solution- Data given- mass of NaCl (g) = 800 g Mass of ice = 1.48 kg.

Q: Find the number of millimoles of solute in 3.0 L of 3.76 x 10-3M KMnO4

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Q: reaction conditions. a) OH CH3 H3C ČI

A: Here we have to convert chlorobenzene to to 4-chloro-3,5-dimethylphenol by multistep reactions.

Q: Calculate the pH, the pOH, and concentrations of hydronium and hydroxide for each of these aqueous…

A: Acid and Base :  According to Arrhenius theory an acid is a substance that gives H+ ion to the…

Q: What is oxidation number of O in O2 ?   Choose the correct answer from the given choices below: a.)…

A: We have to predict the oxidation number of oxygen.

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

A: The source below says: 519kg/mol (12kg H2S) * (1000g/kg)/(34.0814)*(519kj/mol)=228424KJ

Q: What is the equilibrium constant expression for the equilibrium between dinitrogen tetroxide and…

A: Keq is the ratio of the equilibrium concentrations of product over equilibrium concentrations of…

Q: Which of the following nuclear processes does not change the mass number in the product element…

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Q: 12O2(g), ΔH = 30.56 KJ mol−1 andΔ S = 66 J K−1 mol−1 at 1 atmosphere pressure. Calculate the…

A: Given,  □H = 30.56 kJ/mol □S =66 J/mol-K As we know  □G = □H - T□S At equilibrium,  □G = 0 T = □H/□S

Q: e limiting reactant?

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Q: choose the best that describes water vapor molecules: a. are invisible b. color the sky blue c. make…

A: This question is related to physical chemistry. Physical chemistry is branch of chemistry in which…

Q: 4.The following two molecules undergo stereospecific eliminations reactions. Draw the expected…

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Q: At SATP, iodine boils at 183.0oC. The vapor pressure of the liquid at 392 K is  0.133 atm. If the…

A: Solution- Data given- Iodine (T) = 183.0oC=456K Pressure - 0.133 atm. =13476.22 Pa at 392 K molar…

Q: Half-Life 1189 years Decay Rate, k Complete the table shown to the right for the half-life of a…

A: Given, Half life = 1189 years Decay rate, k = ?

Q: 1. Propose the systematic name for the following alcohols and determine either it's a primary,…

A: Primary alchol - when 1alkyl group is present on the same carbon at which alchol group is present.…

Q: need help solving for the ICE table. I have put out the givens at the bottom of the paper. So please…

A:

Q: A solution of serum albumin was analyzed using the UV-Vis and yielded an absorbance value of 0.4531.…

A: Given:: Absorbance A=0.4531  cuvette length l=5.6 cm  Molar absorptivity €=43824 M-1cm-1…

Q: Calculate the OH– concentration & pH of a 0.45 M NH3 solution (Kb=1.75 × 10–5)

A: NH3  is a weak base Given dissociation constant of NH3 is (Kb) =1.75×10-5 Concentration of NH3 is =…

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: 1. ) Complete and balance the following half-reactions: Cl, C a. b. НОВГ > HBr (acid soluti W,O, WO,…

A: Complete and balanced the following half-reactions:

Q: Show how the participating p orbitals interact to form the highest energy pi molecular orbital of…

A: Since you have asked multiple questions, we will solve first question for you. For remaining…

Q: what is acid-base equilibrium or electrochemistry? explain it using an illustration.

A: Acids and bases have a chemical equilibrium in solution. At chemical equilibrium, the products and…

Q: Oxidation involves

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Q: 4)Listen Which of the following best describes a chemical reaction that absorbs heat from the…

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Q: A chemist found that a reaction did not take place under any set of conditions. If the chemist added…

A: A reaction may take a few seconds or several years to form the product. So if we add catalyst to…

Q: Define the following: 1. emulsion 2. suspension 3. colloidal dispersion

A: 1. Emulsion- In an emulsion, one liquid (the dispersed phase) is dispersed in the other (the…

Q: Give the balanced chemical equation for the reaction Draw the full structure co(salen) N- OMSO -DASO

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Q: Instructions: į Rewrite the given information in the form of a reaction scheme*. - Draw the skeletal…

A: The reaction is an example of nucleophilic aromatic substitution reaction. The reaction proceeds via…

Q: a. Which of the following statements concerning structural isomerism is/are INCORRECT? (1)…

A:

Q: Match each item to a choice: breaking of double bond using KMN04 oxidation addition of bromine or…

A: Oxidation is the process of adding oxygen atom ( or removal of hydrogen atom ) to a compound.KMnO4…

Q: 2. a platinum electrode immersed in a solution that is 0.0400 M in Fe2SO4 and 0.00915 M in Fe2(SO4)3…

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Q: ressure c

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Q: Show how the compound can be synthesized using acetylene and butyl bromide as starting materials.…

A: Here we are required to synthesize given compound from butyl bromide and acetylene

Q: 2. How much heat is needed to change the temperature of 4kg Iron from 15 °C to 28°C?

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Q: Which solute-solvent pair would you greatest solubility? butter in oil butter in water C grease in…

A: The solubility of a substance depends on the nature of the solute and solvent. The thumb rule of…

Q: A 50.00-mL portion of an HCl solution required 29.71 mL of 0.01963 M Ba(OH)2 to reach an end point…

A:

Q: -Identify the configuration of the double bond.  -Redraw the structure and identify the chiral…

A: ->If the most preferential group attached on double bonded carbon are on same side then it has Z…

Q: Kai wants to create 0.250 L of 0.200 M potassium permanganate solution. What mass of potassium…

A: Given, Chemical formula of potassium permanganate - KMnO₄ Molarity of potassium permanganate…

Q: The more methyl groups on the carbocaticn the less stable is the carbocation intermediate. Select…

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Solutions

Solutions can be considered as homogeneous mixtures which contain two or more than two chemical substances. The chemical substance which is the greater part is defined as solvent. And the chemical substance that is dissolved in a solvent is referred to as solute. Solution chemistry plays an important role in chemistry since it supports many commercial applications of solutions.