Complete combustion of 2.40 g of a compound of carbon, hydrogen, and oxygen yielded 5.46 g CO2 and 2.23 g H2O. When 8.69 g of the compound was dissolved in 281 g of water, the freezing point of the solution wasfound to be -0.97°C. What is the molecular formula of the compound?

Q: What are the two requirements for a proposed mechanism to bevalid for a given reaction?

A: A reaction mechanism is a set of elementary processes or elementary steps, which describes the proce...

Q: E15C.5(a) Calculate the lattice enthalpy of CaO from the following data: AH/(kJ mol") Sublimation of...

A: Lattice enthalpy : The energy released when the ions combines, because of strong electrostatic attra...

Q: Why is a suppressor used in ion chromatography?

A: Ion chromatography- It is used for water chemistry analysis. Ion chromatography helps in measuring ...

Q: Glauber’s salt, Na₂SO₄10H₂O, was used by J. R. Glauber inthe 17th century as a medicinal agent. At 2...

A: The given reaction, the equilibrium equation is written as shown below. Since, for the solid state, ...

Q: A solution contains three anions with the following concentrations: 0.20 M CrO42 - , 0.10 M CO32 - ,...

A: Given: The concentration of CrO42- in the solution is 0.20 M The concentration of CO32- in the solut...

Q: Given that K = 3.76×1014 for the reaction; 2 Fe3+(aq) + Cu(s) → 2 Fe2+(aq) + Cu2+(aq) at 25 degrees ...

A: The reaction given is  2 Fe3+ (aq) + Cu(s) → 2 Fe2+ (aq) + Cu2+ (aq)  In the above reaction we can s...

Q: Ag+ will spontaneously reduce which of the following? 1. Fe2+  2. Mg2+  3. Al3+  4. Cu2+  5. None of...

A: The reduction potential of the following : Fe2+(aq) + 2e-     ->    Fe(s)               -0.41 Mg2...

Q: The kinetics of a gas phase reaction of the form A → Products results in a rate constant of 1.308 M⁻...

A: Order of the reaction is numerical power to which concentration term is raised in a rate law equatio...

Q: The hydrolysis of table sugar (sucrose) occurs by the following overall reaction sucrose + water → g...

A: The hydrolysis of sucrose is type of pseudo- first order reaction , in which concentration of water ...

Q: The kinetics of a gas phase reaction of the form A → Products results in a rate constant of 1.308 M⁻...

A: The expression of second order reaction is shown below: Where; [A] = concentration at time t [A]0 =...

Q: True or false: “solubility” and “solubility-product constant” are the same number for a given compou...

A: Solubility is the phenomenon of dissolution of a solute in the given solution.

Q: what is  the precipitate formed between AgNO3(aq) and KCI(aq)

A:

Q: N.

A: The IUPAC naming is the standard naming of organic compound given by international union of pure and...

Q: The primary use of ingested proteins in the body is to _____.     be broken down into amino ...

A: Proteins are the viral source of amino acids (which are used to synthesize specific protein by speci...

Q: Why is the Arrhenius acid-base definition too limited? Give an example for which the Arrhenius defin...

A: Arrhenius theory is based on the solution that is aqueous in nature. It primarily deals with the dis...

Q: What are Transuranium Elements?

A: Transuranium element, any of the chemical elements that lie beyond uranium in the periodic table—i.e...

Q: A sample of helium gas occupies 14.7 L at 23°C and 0.956 atm. What volume will it occupy at 40°C and...

A: From the combined gas law,                                                Where, P1 and P2 are the i...

Q: A certain reaction has an activation energy of 39.5 kJ/mol. As the temperature is increased from 25....

A: Concept introduction: Effect of temperature on rate of reaction: As the temperature increases rate o...

Q: If the pressure in a flask is 400 mm Hg and the temperature is 40°C, which ofthe three compounds (di...

A: Given compounds,       Diethyl ether, ethanol and water Given temperature is 40°C Given pressure is ...

Q: Miners’ Lamps Before the development of reliable batteries, miners’ lamps burned acetylene produced ...

A: The given reaction is: 1. To calculate the number of moles in 1 hr: Given: Volume=1 L Pressure =1 a...

Q: 1.68 L of an aqueous solution containing 25.00 g of KCl dissolved in pure water is prepared. The mol...

A:

Q: What is the expected number of Fe-Fe bonds per Fe atom in the complex Fe4(CO)12[(μ3-CO)]2-

A: The rules that must be followed in order to determine the number of metal metal bonds per metal in a...

Q: A particle freely moving in one dimension x with 0 ≤ x ≤ ∞ is in a state described by the normalized...

A: Given normalized wave function ψ(x) = a1/2e–ax/2 where 'a' is a constant. Particle freely moving in ...

Q: The water-soluble vitamins niacinamide (a neutral compound), riboflavin (a neutral compound), niacin...

A: Micellar Electrokinetic Capillary Chromatography is a hybrid of electrophoresis and chromatography. ...

Q: The following reaction 2A → B + C is second order, following the rate law Rate = k[A]². If the start...

A: Second order reaction means, the rate of the reaction is proportional to the second power of the con...

Q: Calculate the voltage generated by a hydrogen-concentration cell utilizing the following concentrati...

A: The cell reaction given is  H2 (2 atm) + 2 H+ (0.1 M) → H2 (0.5 atm) + 2 H+ (0.5M) In the above cell...

Q: The pH of a saturated solution of magnesium hydroxide, Mg(OH)2, was found to be 10.52. From this, fi...

A: The solubility product constant (Ksp) is the equilibrium constant for a solid substance dissolved in...

Q: Write the different effects of radiation on life?

A: The energy that either come from unstable atom (radioactive element) or from a machine, traveled in ...

Q: The reaction X + X₃ → 2 X₂ is shown to have an activation energy of 53 kJ/mol while the enthalpy of ...

A: It is the quantity or amount of energy (minimum) that a molecule must have in order to undergo succe...

Q: What does the term half-life mean? Write the expressions for the half-lives of zero-order, first-ord...

A: Half-life is related to the chemical kinetics of a reaction. It gives the information of change in c...

Q: When 36.5g of NaCl(s) is added to enough water to make 550.0 ml of solution, what is the molarity of...

A: Given : mass of NaCl added = 36.5 g volume of solution = 550.0 mL = 0.550 L                         ...

Q: Please help with highlighted question

A: Since the silver is initially at 25 oC. Hence to melt the silver from solid to liquid state, first w...

Q: A slightly bruised apple will rot extensively in about4 days at room temperature (20°C). If it is k...

A:

Q: Show how to bring about each conversion using a lithium diorganocopper reagent. Q) 1-Bromo-2-methylp...

A: Mechanism in chemical reactions refers to the stepwise sequential approach of each reaction which th...

Q: Calculate the pH of a solution containing 20 mL of 0.17 M of a weak weak base B OH, like NH,OH, or s...

A: 1. Given information: Volume of weak base = 20 mL Volume of strong acid = 16 mL Concentration of wea...

Q: Iridium has two stable isotopes, iridium-191 and iridium-193. Iridium-192 sample was prepared from i...

A: It is given that the reaction is radioactivity of Iridium 191, follows first order reaction.  As it ...

Q: At very low pH, alanine is a diprotic acid that can be represented as H3N1-CH(CH3)-COOH. The pKa of ...

A: A diprotic acid contains two types of acidic groups. The amino acid contains these two groups: 1. Ca...

Q: Describe the Boyle’s Law?

A: Boyle's law is an ideal gas law which comes under the gaseous state . It is an experimental  gas law...

Q: . The _____ must be collected in order to determine the caloric content of food using a bomb calorim...

A: Bomb calorimeter is a device used to measure heat of a physical or chemical reaction taking place in...

Q: Given the heats of the following reactions:     deltaH°(kJ) I. P4(s) + 6Cl2(g) ® 4PCl3...

A: According to Hess’s Law of constant heat summation the enthalpy change of a reaction is same whether...

Q: Give reasons :(i) Electrophilic substitution in aromatic amines takes place more readily than benzen...

A: i) Due to delocalization of lone pair of electrons on N-atom of NH2 group in aromatic ring aromatic ...

Q: Look up the pKa values for trimethylamine, dimethylamine, ethylamine, and ammonia. Predict the order...

A: Ion exchange chromatography is the process by which a mixture of similar charged ions can be separat...

Q: How does a developing fetus get oxygen in the womb?

A:            

Q: Choose strong acids from the following:CH3COOH, H2SO4, H2CO3, HNO3

A: Any substance which releases hydrogen ions in its aqueous solution is generally called as an acid. T...

Q: Use the tables below to determine the enthalpy of reaction (in kJ) for the following balanced chemic...

A: The reaction given can be written as  Hence from the above reaction we can see that  1) 1 C=C is br...

Q: [References] Boron has two stable isotopes, "B and "B. Calculate the binding energies per mole of nu...

A: Concept introduction: Binding energy: It is the amount of energy required to separate the protons an...

Q: 10. When using Atwater factors to determine the amount of calories from carbohydrates, it is necessa...

A: Identify the correct reason due to which it is necessary to subtract the fiber content, per unit of ...

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.