The vapor pressure of an aqueous solution is found to be 19.4 mmHg at 25 °C. What is the mole fraction of solute in this solution?

Q: What are the units of a? What are the units of b? For water the numerical value of a is 5.464 and th...

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Q: 15 Gaseous ethane (CH;CH3) reacts with gaseous oxygen gas (0,) to produce gaseous carbon dioxide (CO...

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Q: The rate at the start of the reaction is called

A: At the beginning of the reaction. i.e. time t =0, it is called initial rate.

Q: A buffered solution was prepared by dissolving 6.85g of sodium formate (NaHCOO in 250.0mL (16) of a ...

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Q: What is the percent yield of CO 2 if the reaction of 10.0 grams of CO with excess 02 produces 12.81 ...

A:       Recall the given reaction,  2 CO (g) + O2 (g)                 2 CO2 (g) 10.0 g of CO reacts wi...

Q: The correct IUPAC name for CH3-CH-CH=CH-CH3 CH3

A: Rule of IUPAC- 1) Longest chain as parent chain. 2) Numbering start from those side where more prior...

Q: e AG for the reaction

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Q: The standard enthalpy change for the combustion of 1 mole of propane is –2043.0 kJ.         C3H8(g)...

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Q: Under certain conditions the rate of this reaction is zero order in dinitrogen monoxide with a rate ...

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Q: Given the following at 25 °C and 1.00 atm: 2Fe(s) + 02(g) → 2FEO(s) 4Fe(s) + 302(g) → 2FE203(s) AH° ...

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Q: 3. 4Fe s) Calcu

A: Mole can be defined as a standard unit for measuring large quantities of very small entities such as...

Q: An element X has atomic number 34. Which of the following statements about the electron configuratio...

A: Given, Atomic number of element X = 34 For neutral atom of any element, the number of electrons are ...

Q: What volume of H2O, weighed in air against brass weights, would have to be placed in a flask at 27°C...

A: Note: As per our guidelines, we are supposed to answer only one question when multiple questions are...

Q: 2. Complete the following chemical equation below. Provide the reagent that will separate each pair ...

A: The group reagent of 3 rd group is ammonium sulphide solution or hydrogen sulphide gas in the presen...

Q: e empirical formula a compound is C 2H 4O and its molecular weight was determined to be approximatel...

A: Given; molecular mass = 44 g/mol

Q: Answer a, b, c,

A: Alkyl halides react with sodium alkoxide to form an ether by the Williamson ether synthesis. The rea...

Q: A 245.0 mL sample of 0.15 M Ba(OH)2 is added to 438. mL of 0.20 M HNO3. What is the pH of the result...

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Q: Question 9 of 20 Submit Draw the major product of the substitution reaction shown below. Ignore any ...

A: SN1 reaction: The SN1 reaction is a substitution reaction in organic chemistry, the name of "SN " st...

Q: If nerves respond to electrical currents, why do you think putting aluminum foil on an amalgam (gray...

A: As we know nerves cell work using complicated electrochemical pulses. In a tooth cavity those nerves...

Q: Consider the combustion of hexyne, C6H10, what is the coefficient in front of O2 when equation is pr...

A: A combustion reaction is always exothermic in nature. Exothermic reaction are those reaction in whic...

Q: e average atomic mass

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Q: The force between methylamine and acetate will be greater in methanol than in water because ________...

A: #Q.2: Both methanol(CH3OH) and water(H2O) are polar solvents capable of forming hydrogen bonding.  

Q: What is the entropy change of the reaction below at 298 Kand 1 atm pressure? 4Al(s) + 30 2(9) 2AI 20...

A: THE ENTROPY CHANGE OF A CHEMICAL REACTION IS CALCULATED AS DIFFERENCE BETWEEN THE SUM OF ENTROPIES O...

Q: 6. Consider the radical halogenation of pentane. What are the possible mono-halogenated products? La...

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Q: Which of the following will lower the activation energy for a reaction? O increasing the concentrati...

A: In a given chemical reaction, the minimum amount of energy required by the reactant molecules to att...

Q: Under certain conditions the rate of this reaction is zero order in hydrogen iodide with a rate cons...

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Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 0.38 kg sample ...

A: Answer: Heat capacity can be calculated by below shown formula: Q=nC∆TQn∆T=CC=Qn∆There:Q=heat addedn...

Q: Use the observation in the first column to answer the question in the second column. observation que...

A: The correct answer is given below

Q: 6. Tarnished silver can be restored by contact with magnesium in a salt solution. In this reaction, ...

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Q: Question 15

A: The tertiary substrate favours an sN1/E1 mechanism.

Q: Consider a buffer solution that contains 0.25 M CgHalCO2H){CO2K) and 0.15 M COH4(CO2K)2. pk (CH4(CO2...

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Q: Copper(II)-ammonia system 1. Place 1 mL 0.1 M CuSO̟ into a test tube. Then, add 5 drops 1. 00 M NH, ...

A: Addition of excess ammonia, NH3 to copper(II) ion forms a complex compound that leads to a change in...

Q: Nitric acid and nitrogen monoxide react to form nitrogen dioxide and water, like this: 2 HNO3(aq)+NO...

A: KC is equilibrium constant

Q: Helium-filled balloons are used to carry scientific instruments high into the atmosphere. Suppose th...

A: Helium-filled balloons are used to carry scientific instruments high into the atmosphere. Suppose th...

Q: A. How would you prepare 1.5L of a buffer of pH = 4.00 using 0.25M formic acid and solid sodium salt...

A: we konw, pKa of formic acid = 3.8

Q: Classify the following substances as strong electrolytes, weak electrolytes, or nonelectrolytes. 1. ...

A: Answer: A compound when added into the solvent, gets dissociated into the ions is called as electrol...

Q: 76. Predict the standard cell potential for the following re- action at 25°C. Zn(s) + Fe*(aq) Zn²*(a...

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Q: Methane combustion provides a significant fraction of the world's primary energy, and is used for ho...

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Q: Spectrophotometric of a Cobalt Chloride Solution Analysis 1. explain in detail the results o...

A: The wavelength at which maximum absorbance of a compound is obtained is known as lambda max. And as ...

Q: Instruction: Analyze the table. What can you say about the relationship between pH and temperature? ...

A: Answer - According to the question - Relationship between pH and temperature - We make a graph the c...

Q: How much 0.5 M KOH must be added to 200 mL of 50 mM glycine at ph 8.6 to bring its ph to exactly 10....

A: Answer: Glycine is an amino that act as an buffer between the range of 8.6 to 10.6, therefore the pH...

Q: Br NaOH heat Draw E1 Major Product + Draw Minor E1 Product

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Q: Nickel and carbon monoxide react to form nickel carbonyl, like this: Ni(s)+4 CO(g)→Ni(CO),(9) At a c...

A: Concentration of a solution can be measured in terms of molarity which is equal to number of moles o...

Q: Use the thermochemical data that follow to calculate the value of ΔH° for the reaction: 4 B  2 A + C...

A: Thermochemistry can be defined as the branch of chemistry that deals with heat energy associated wit...

Q: Draw the skeletal (line-bond) structure of 1-methylcyclopentan-1-ol.

A: line bond structure or skeleton structure is the structure of a organic compound represented via lin...

Q: For the endothermic reaction: CaCO3 (3) Ca0 (3) + CO2 (g) Le Châtelier's principle predicts that O i...

A: Le Chatelier's principle: According to the Le Chatelier's principle when a change in concentration t...

Q: The normal freezing point of a certain liquid X is 5.20 °C, but when 41. g of urea (CH,N,O) are diss...

A: Given, mass of urea (CH4N2O) dissolved = 41.0 g Mass of liquid X = 750 g = 0.750 Kg Freezing point o...

Q: 3. Solar radiation heats the surface after sunrise, and the resulting heat flux F to the atmosphere ...

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Q: Liquid octane (CH3(CH,) CH, reacts with gaseous oxygen gas (0,) to produce gaseous carbon dioxide (C...

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Q: Relating Density to Crystal Structure 1. Show that the atomic packing factor for FCC is 0.74. 2. Sho...

A: Given,  The calculation for the atomic packing factor for BCC(Body centered cube) is:

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.