Which one of the following is not equivalent to one mol of the substance? 65.39 g Zn O 14.01 g N 8.0 g He 6.02 x 1023 C atoms 55.85 g Fe atoms

Q: Consider a theoretical reaction: 3A(e) + Be) = 2C(e) where K = 100, %3D what is the equilibrium cons...

A: Equilibrium constant for forward reaction = k  Equilibrium constant for backward reaction will be = ...

Q: Which of the following molecules is polar? O BeCl2 O CH2F2 O CH4 O AIF3

A: Given : We have to write which of the following is polar.

Q: What is the reaction equation for copper (II) and thiosulfate ions

A:

Q: The isomerization of cyclopropane to form propene is a first-order reaction. H2C CH2 H3C-CH=CH2 CH2 ...

A:

Q: The rate of a reaction was experimentally determined to double if the concentration of reactant A is...

A:

Q: On analysis, an equilibrium mixture for the reaction 2H2S(g) 2H2(g) + S2(g) was found to contain 1.0...

A: The equilibrium reaction given is, => 2 H2S (g) ⇔ 2 H2 (g) + S2 (g)                        Kc = 3...

Q: ccording to the equation below, what is the limiting reactant if you combine 2 moles of N2 with 3 mo...

A: Given : We have to find out the limiting reagent.

Q: According to the kinetic molecular theory, the molecules of an ideal gas (1) have a strong attractio...

A:

Q: In general, to calculate the rate constant for a first order decomposition reaction, A products, giv...

A: The correct answer is given below

Q: The table below shows the standard reduction potential of some biochemical reactions. As per the tab...

A: On the basis of reduction potential given in table we have to tell which of the molecule reduced its...

Q: Calculate the [H*] of 5.8 x 10-5 M magnesium hydroxide solution. O [H*] = 3.4X10-11 O [H*] = 3.2X10-...

A:

Q: Draw the Lewis structures for the following compounds, identify its molecular geometry, and redraw t...

A: Lewis’s structure: Lewis’s bonding theory is based on the octet rule. The Lewis structure is a simpl...

Q: Refer to figure below. The temperature when the liquid reaches a vapor pressure same as the atmosphe...

A: The vapour pressure v/s temperature curve given is,  

Q: A certain first-order reaction A B is 25% complete in 42 min at 25°C. What is the half-life of the r...

A: So 4th option seems to be correct that is 101min.

Q: The mass of earth is 5.98 ×10²⁴ kg. What is the mass expressed in tera-grams?

A: Given that : Mass of earth = 5.98 ×10²⁴ kg

Q: For the reaction below which of the statements is correct? A+ 2B → 3C O The rate law is, rate = k[A]...

A:

Q: 1. An aqueous solution with 15g sulfuric acid is dissolved to make 0.2F solution. The specific gravi...

A: Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for yo...

Q: Which of the following compounds is more stab

A: Given : We have to tell which of the following is more stable.

Q: Which of the following molecules can have dipole-dipole interactions as their strongest intermolecul...

A:

Q: The temperature when the liquid reaches a vapor pressure same as the atmospheric pressure jus above ...

A: When we increase the temperature the vapour pressure of the solution also increases. 

Q: The rate of a reaction was experimentally determined to double if the concentration of reactant A is...

A:

Q: Aqua regia is prepared by mixing a nitric acid solution with a hydrochloric acid solution. The resul...

A: The balanced reaction given is, a) Given: Mass of HCl taken = 10.0 g. And mass of HNO3 taken = 75.0...

Q: Which of the following statements is true? An atom with a high electronegativity is an electron dono...

A: Electronegativity is defined as  tendency of atom to attract shared pair of electrons.

Q: Calculate the mass of excess reagent remaining at the end of the reaction in which 180.0 g of SO2 ar...

A:

Q: Which of the following molecules can have dipole-dipole interactions as their strongest intermolecul...

A:

Q: Given these initial concentrations: [SCN`] = 0.000644 M, [Fe³"] = 0.000505 M, and %3D 2+. [Fe(SCN)] ...

A:

Q: Indicate whether the following balanced equations involve oxidation-reduction. If they do, identify ...

A: Note : Since you have posted a question with multiple sub-parts, we will solve first three sub-parts...

Q: Which of the following compound has the central atom with +1 formal charge? O PCI6 O XEF3* O IF5 O A...

A:

Q: 11. Draw the Lewis structure and calculate the formal charge for oxygen atoms in an HCO3 ion? Show y...

A: Lewis’s structure: Lewis’s bonding theory is based on the octet rule. The Lewis structure is a simpl...

Q: Calculate the mass of excess reagent remaining at the end of the reaction in which 180.0 g of SO2 ar...

A:

Q: What is the pH of a 500 mL buffer containing 0.200 moles NH3 and 0.350 moles NH4CI? Kb = 1.8 x 10-5 ...

A: The given Kb value is, Kb=1.8 x 10-5 pKb=-log Kb        =4.744 pKa=14-pKb        =14-4.744        =9...

Q: Vapor Pressure Versus Temperature Diethyl ether Water Mercury -100 0 34.6 100 200 357 400 Temperatur...

A:

Q: What volume (mL) is required from a stock solution of 1.98 M KNO3 to prepare a 750 mL solution of 1....

A: Given,  Initial volume, V1 = 750 ml  Initial Concentration, S1 = 1.00 M  Final Concentration, S2 = 1...

Q: Chem 152 Homework #7 Aqua regia is prepared by mixing a nitric acid solution with a hydrochloric aci...

A:

Q: What is the pH of a 500 mL buffer containing 0.200 moles NH3 and 0.350 moles NH4CI? Kb = 1.8 x 10-5 ...

A: Buffer solution: The solution that resists the change in pH is known as a buffer solution. The buffe...

Q: Which of the following molecules can initiate ion-dipole interactions with water? Na :N-F: O :N=N: :...

A: The molecules given are,

Q: Calculate the percent by mass of potassium nitrate in a solution made from 67.0 g KN0, and 447 mL of...

A: Given: Mass of KNO3 = 67 g The volume of water = 447 mL The density of water = 0.997 g/mL Standard...

Q: uestion 14 A functional group capable of having characteristic electronic transitions. These chemica...

A:

Q: The PHIVOLCS recently reported that Taal volcano emitted 15,500 tons of Sulfur Dioxide (SO2). How ma...

A:

Q: O 0.0001

A:

Q: calculate the degree of unsaturation and draw structures that would meet the following descriptions

A: We have to find the structure of C10H10O2 which contain an aromatic ring one hydroxyl group and a ke...

Q: Manganese(III) fluoride, MnF3, can be prepared by the following reaction: 2MnI2(s) + 13F2(g) → 2MnF...

A:

Q: Question 5 Which is NOT true about Auxochromes O They are conjugated dienes they are functional grou...

A:                                     Answer Auxochrome modified that ability that chromophore of abso...

Q: NH2

A: Naphthalene, on reaction with concentrated H2SO4 at 1600C gives 2-naphthalene sulfonic acid. On fusi...

Q: Which of the following (NBR3, BF3, OF2, IF3) is(are) exempted from the octet rule? Check all that ap...

A: Generally octet rule is violated or exempted when a central atom having either fewer or more than th...

Q: and acetic acid Wine goes bad soon after opening because the ethanol (CH,CH,OH) in it reacts with ox...

A:

Q: How many parsecs are there in 5 light-years?

A: • We need to convert 5 light year into ____ parsecs 

Q: Which compound has the greatest ionic character? CsF O RbF LIF NaF

A: Ionic character determines the type of bond that can exist between two bonded atoms from the differe...

Q: Which of the following equilibria would not be affected by pressure changes at constant temperature?...

A: When the amounts of gaseous reactants and products are same on both the sides of reaction  at equili...

Q: H- H-ci : + 1. 2.

A: Markovnikov's rule state:     In  addition reactions to unsymmetrical alkenes, the electron-ri...

Mole Concept

Mole concept is a method to determine the amount of any substance that consists of some elemental particles using a grouping unit called ‘mole’. The mole concept enables one to handle the large amount of small elementary particles. The mole concept can be used in many calculations related to mole calculation, molar amount, mole ratio, and so on, which are significant in chemistry.