How many grams of H2 will be produced from 15.0 g of Al reacting with HCl? What mass of HCl is required to react with 1.25 mol of Al?

Q: Colligative Properties and Kinetics 7. The packing efficiency of a unit cell is described by: Packin...

A: To calculate packing efficiency we need to calculate volume occupied by sphere , which we can calcul...

Q: How long must constant current of 50.0 A be passed through an electrolytic cell containing aqueous C...

A: According to the first law of Faraday, the mass of a metal deposited on the anode during electrolysi...

Q: 2. The oxidation of aldehydes is another important transformation widely used in organic synthesis. ...

A:

Q: When the half-reactions listed above are combined into a balanced chemical equation, the ratio of th...

A:

Q: What is the correct Ko expression for the following reaction? N2 (g) + 3 H2 (g) = 2 NH3 (g)

A: Given :-  N2(g) + 3H2(g) <----> 2NH3(g)  To write :-  Its correct Kc expression

Q: Calculate the thermal conductivity of Argon at 300 K and 15 Mbar. Gas is confined in a cubic vessel ...

A:

Q: Part A A 160.0 – mL solution contains 2.10 g of sodium benzoate and 2.46 g of benzoic acid. Calculat...

A: Given- Volume=160.0mL = 0.160 L (1L = 1000 ml) Weight of sodium benzoate =2.10 gram  Weight of benzo...

Q: (Q6) If the equilibrium pH of an aqueous solution is 1.72 and the solution is 0.433 M in formic acid...

A:

Q: Suppose the galvanic cell sketched below is powered by the following reaction: Zn(s)+PdCl,(aq) - ZnC...

A: We have given a cell reaction and it's galvanic cell diagram- Zn(s) + PdCl2(aq)>>> ZnCl2(aq...

Q: What is the partial pressure of nitrogen in a container that contains 3.96 mol of oxygen, 7.49 mol o...

A: Given, mol of Oxygen (nO2) = 3.96 mol mol of nitrogen (nN2) = 7.49 mol mol of carbon dioxide (nCO2) ...

Q: When iron rusts, it undergoes a reaction with oxygen to form iron (II) oxide. 4 Fes + 30) 2Fe;Os (6)...

A:

Q: HCI ionizes completely and is irreversible. Why? Select one: a. CI- is a strong conjugate base,...

A:

Q: A 25.0-mL bubble is released from a diver’s air tank at a pressure of 4.00 atm and a temperature of ...

A:

Q: A buffer solution contains 0.204 M NH3 and 0.262 M NH4Cl. What is the pH of the buffer solution afte...

A:

Q: Calculate the partial pressures of the components of the reaction I2(S)+Br2(g)↔2IBr(g) given the equ...

A: Given: equilibrium constant Keq = 0.25 Initial pressure = 0.25 atm temperature = 25 oC    

Q: A balloon flying a long distance contains 1.2 x 107 L of helium. If the helium pressure is 737 mmHg ...

A: Given, Pressure (P) = 737 mmHg = 0.97 atm Volume (V) = 1.2 × 107 L Temperature (T) = 25°C = (25 + 27...

Q: How many milliliters of 1.58 M HCl are needed to react completely with 23.2 g of NaHCO 3 (K = 84.02 ...

A: Given, HCl(aq) + NaHCO3(s) ➝ NaCl(s) + H2O(l) + CO2(g) Molarity of HCl solution = 1.58 M = 1.58 mol/...

Q: Answer the following questions. 116.0 117.0 117.5 118.0 128.0 130.0 153.0 154.0 155.0 156.0 2.2 4.0 ...

A:

Q: Part A: A container of helium exerts a pressure of 1.2 atmospheres (atm) at a temperature of -73 Ce...

A: Given,  A container of helium exerts a pressure of 1.2 atmospheres (atm) at a temperature of -73 Cel...

Q: A student ran the following reaction in the laboratory at 288 K: 2NO(g) + Br2(g) = 2NOBr(g) When she...

A: Given data, Number of moles of NO = 0.140 mol Number of moles of Br2 = 0.117 mol volume of  containe...

Q: Calculate the actual free energy of hydrolysis of ATP, delta Gp in the erythrocytes of a new species...

A:

Q: HO

A:

Q: A gas expanding against a constant pressure of 2.00 atm from 15.0 to 21.6 L absorbs 350 calories of ...

A:

Q: question 12 Calculate the initial molarity of a generic amine, R3N (Kb = 7.23x10-6), whose pOH = 2....

A: Here we have to calculate the initial molarity of a generic amine, R3N where we have given that the ...

Q: Calculate AG°, for the following reaction at 449.0°C. rxn CH20(g) + 2 H2(g) → CH4(g) H20(g) AH° = - ...

A:

Q: Consider a saturated solution of lead sulfide, PbS, in water. PbS(s) ⇌ Pb2+(aq) + S2-(aq) What is th...

A: When a reaction is at equilibrium and then more reactants are added to it then according to Le Chate...

Q: NABHA PCC OCH CH,OH CH;Cl2 1) LIAIH. ether 2) H,0 2. PCC LOCH3 CH,CI, 1) DIBALH, ether H+ 3. OCH3 2)...

A: ->NaBH4 is reducing agent but can not reduce ester. ->PCC can oxidize alcohol to carbonyl comp...

Q: At equilibrium, a reaction vessel contains 4.50 atm of Br, and 1.10 atm of NB.3. According to the re...

A: Given Pressure of Br2 = 4.50 atm Pressure of NBr3 = 1.10 atm Reaction:  2 NBr3 (g) ⇌ N₂ (g) + 3 Br₂ ...

Q: Calculate the normality of NaOH solution formed by dissolving 0.2 gm NaOH to make 250 ml solution.

A: Normality of solution is defined as number of gram equivalents of solute dissolved per litre of solu...

Q: Consider the following system at equilibrium where AH° = 18.8 kJ, and K. = 9.52x102, at 350 K. CHĄ(g...

A:

Q: 1. Justine, a BSMLS student was trying to dilute 100 mL of 5M of acid to 1M of the same acid. How mu...

A: M1 x V1 = M2 x V2 Where, M1 = Initial concentration M2 = final concentration V1 = initial volume  V2...

Q: 8. For the reaction Cu (s) = Cu(g) AH° = 81.730 –- 0.47T – 0.731x10-3T2 AS° = 34.94 – 1.08 log10T – ...

A: Gibbs free energy, tell us about spontaneity of the reaction.  

Q: What is the pH of a 0.419 M C6H5CO2H M solution if the Ka of C6H5CO2H is 6.5 *10^-

A: pH of a solution is related to the concentration of H+ ions in the solution and is given by the foll...

Q: Match the type of electromagnetic radiation with its frequency. gamma rays v [ Choose ] 10E15 Hz 10E...

A:

Q: The molar solubility of Cul is 2.26 x 10°° M in pure water. Calculate the Ksp for Cul. O 5.11 x 10-1...

A: The molar solubility of CuI is = 2.26 x 10-6 The solubility product for CuI is =?

Q: Calculate the standard entropy change for the reaction at 25 °C. C;H,(g) + 50,(g) • 3 CO,(g) + 4 H,O...

A:

Q: The solubility product constant for ruthenium perchlorate (RuClO4) is 3.0 x 10-3. What is the molar...

A: given, solubility product constant = 3.0 x 10-3

Q: A chemist places 1.750 g of ethanol, C2H6O, in a bomb calorimeter with a heat capacity of 12.05 kJ/K...

A: a.) Models would be calculated using formula :  Moles = mass / molar mass  b.) To calculate q ( heat...

Q: Provide structures for aromatic hydrocarbons that meet the following criteria: a. compound C9H12 tha...

A: The given reactions are electrophilic substitution reactions namely halogenation reaction and these ...

Q: A 25.0 mL sample of a saturated Ca(OH)2 solution is titrated with 0.028 M HCl, and the equivalence p...

A: Given that,  Volume of Ca(OH)2 (V1) = 25.0 mL  Molarity of HCl (M2) = 0.028 M  Volume of HCl (V2) = ...

Q: a. H,PO.(aq) + Fe(NO,)2(aq) → O H,PO,(aq) + Fe(NO,)2(aq) → HNO3(aq) + Fes (PO.)2() Rule 6: Most phos...

A:

Q: 0.05 Μ of a weak acid solution (HA) ionizes 0.2 percent in water. Find its acid dissociation constan...

A: Concentration of weak acid, c = 0.05 M Percentage ionisation = 0.2% x = 0.002    

Q: A 10.00 mL sample of 1.20 M HNO2 (analyte) (pK, = 3.34 and K = 4.57x10) is titrated with 1.20 M NaOH...

A: 1.) First we would calculate moles and draw ICE table for reaction between acid and base.  Then we w...

Q: 1. For each of the reactions below, give the structure(s) of the product(s), and be sure to indicate...

A:

Q: Which starting materials could be used to synthesize propanoic acid? HO CH3CH2CN CH3CH2CHO CH3CH2CH2...

A:

Q: Consider the following generic reaction: X2(g) ⇄ 2 X(g) Calculate kf/kr given that @ 42°C, the equil...

A: Given :-  X2(g) ⇄ 2 X(g)  [X2] = 0.556 M  [X] = 5.67 M  To calculate :- Kf/Kr

Q: What is the change in Gibb's Free Energy for a reaction that has an enthalpy change of -270.8 kJ/mol...

A: The change in enthalpy is equal to the energy supplied as heat at constant pressure. The equation ΔG...

Q: Which best represents a step in the Claisen condensation? CH3 CH3 H3C CH3 1. H3C H3C H3CO CH3 CH3 H3...

A: abstraction of apha hydrogen by base for generation of nucleophile  attack of nucleophile to the sec...

Q: Gamma radiation has frequencies in the 1020 Hz range. What is the wavelength in meters of gamma radi...

A:

Q: For the reaction: 2 A (g) + B (s) =2 C (s) + D (g) At 298 K in a 10.0 L vessel, the equilibrium valu...

A: Equilibrium constant is the ratio of product of concentration of products raised to their stoichiome...

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.