How

Q: How many milligrams of hydrogen can be produced by the electrolysis of water with a current of 0.308...

A: The electrolysis of water reaction producing hydrogen is  2 H+ + 2 e- -----> H2  Hence we can see...

Q: How many grams of sucrose (C12H22O11) do you n

A: Molarity term is used for concentration expression. It is the number of moles of solute dissolved in...

Q: If some neon gas at 121,000 Pa were allowed to expand from 37 mL to 60 mL without changing the tempe...

A: From the Boyles gas law, we know,     (At constant temperature)

Q: Given the balanced equation, Na2SO4(aq)  +  BaCl2(aq)  →  2 NaCl(aq)  +  BaSO4(s), how many moles of...

A:

Q: Draw the steps of the mechanism that converts vinyl chloride (CH2=CHCl) to poly(vinyl chloride).

A:

Q: A gaseous mixture contains 0.27 mol CO, 0.12 mol H2, and 0.022 mol H,O, plus an unknown amount of CH...

A: Since the volume is given 1 L Hence the concentration of all components = moles of components  This ...

Q: Nitrous oxide can be formed by the themal decomposition of ammonium nitrate: NH4OH(s)  -->  N2O(g...

A: The ideal gas equation is shown below: PV = nRT Where; P = pressure of the gas V= volume of the gas ...

Q: Calculate the value of the thermodynamic equilibrium constant K.

A: The equilibrium constant can be written as the ratio of concentration of products to the concentrati...

Q: Polonium(atomicmass209.0g/mol)crystallizesinaprimitivecubicunitcell.Ifthedensityofpoloniumis9.15g/cm...

A: Atomic mass of Polonium = 209 g/mol Density of polonium = 9.15 g/cm3. Density of a unit cell is give...

Q: Name the following

A: The names of the given compounds are

Q: Using Halogenation in Synthesis Show how cyclohexane can be converted to cyclohexene by a stepwise s...

A: Cyclohexene formation from cyclohexane is done by hydrogenation of benzene. First step will be react...

Q: Explain the difference in the pKa values of the piperidinium and aziridinium ions

A: Given,

Q: What is the value of the solubility product constant, Ksp, for the following reaction at 25°C? ZnS(s...

A:

Q: A theoretical weak acid has a Ka of 2.62x10-5. Find the pH of this acid when its concentration is 0....

A: Hey, since there are multiple questions posted, we will answer first question. If you want any speci...

Q: What mass of BaSO4 is produced when 25.3 mL of 0.91 M Na2SO4 reacts with an excess of Ba(NO3)2 throu...

A:

Q: List 3 advantages and 3 disadvantages of the protein assays Biuret, Folin (Lowry), and Bradford.

A: Biuret (i) The reaction takes place specifically only with the peptide bonds and not the amino acids...

Q: Consider the reaction N2(g) + O2(g)2NO(g) Using the standard thermodynamic data in the tables linked...

A: Note: Hey there! Thank you for posting the question. Since the reaction is not given, we are taking ...

Q: What monosaccharides are formed in a modified Kiliani–Fischer synthesis starting with each of the fo...

A: a. The monosaccharides that are formed in a modified Kiliani-Fischer synthesis starting with D — xyl...

Q: (a) Draw the structure of polystyrene, which is formed by polymerizing the monomer styrene, C6H5CH=C...

A: Monomer- the reactant molecule in polymerization reaction called as monomers.These are low molecular...

Q: Which of the following are physical properties of metals?  Check all that apply.   Group of answer c...

A: Physical properties of metals are, Malleable, luster, ductile, hardness, high density, high melting ...

Q: a. From a consideration of the following reactions, calculate AH; for methane, CH4 (g). (1) C(g) + O...

A: a. The equation for formation of methane is,  

Q: What is the pH of a 0.670 M solution of NaCN (Ka of HCN is 4.9 × 10⁻¹⁰)?

A: NaCN is a salt of strong base and weak acid. The pKa of HCN can be calculated as follows-

Q: Consider the following reaction where K, = 2.20x104 at 723 K. 2NH3(g) N2(g) + 3H2(g) If the three ga...

A: Since the reaction quotient for the above reaction can be written as  Q = PN2 X (PH2 )3 / (PNH3)2  w...

Q: What is the best classification for the following unbalanced reaction? __ N2O5(g) + __H2O(l) ->  ...

A: 1) Write the balanced chemical equation for the given chemical reaction. 2) Chemical reactions are o...

Q: The rate constant for the uncatalyzed reaction of two molecules of glycine ethyl ester to form glycy...

A:

Q: t penetrates matter most easily is:

A: Radioactivity related with small particle emission which have large mass number and charge. The part...

Q: Reaction of aldehyde D with amino alcohol E in the presence of NaH forms F (molecular formula C11H15...

A: The structure of F formed from the following conversion has to be proposed:

Q: In the presence of a small amount of acid, a solution of acetaldehyde (CH3CHO) in methanol (CH3OH) w...

A: Aldehyde react with alcohol and form hemiacetal molecule. Further reaction form acetal. Acetal has g...

Q: For the reaction 2H2O(1)2H2(g) + O2(g) AH° = 572 kJ and AS° = 327 J/K AG° would be negative at tempe...

A: For reaction;      

Q: What is the molarity of a solution that contains 0 750 moles of CaCi2 in 250 mL of H20?

A: Since molarity = moles of solute / volume of solution in L  Since here solute is CaCl2  And since ma...

Q: Propane burns in air according to the equation: C3H8(g) + 5O2(g)  ->  3CO2(g) + 4H2O(g). What vol...

A: The number of moles of propane is calculated as shown below where V is the volume of propane and Vm ...

Q: Which has a higher pH? 0.10 M of a strong acid 0.10 M of a weak acid

A: Since you have posted multiple questions, we are entitled to answer the first only.

Q: What is the mass of 1 atom of krypton? Group of answer choices A. 3x10-22 g B. 2x10-26 g ...

A: Any component's amount usually depicted through a particular unit addressed as "Mole". The moles and...

Q: Hi, I need help with this step-by-step please thank you.

A: The representation of an electrochemical cell is: Left Hand Side is anode(Oxidation take place). Ri...

Q: Show all steps and reagents needed to convert cyclohexane into each compound: (a) the two enantiomer...

A:

Q: 35.0 mL of a 0.250 M solution of KOH is titrated with 0.150 M HCl. After 35.0 mL of the HCl has been...

A: The reaction of KOH and HCl. KOH is strong base and HCl is strong acid. 1 mole of KOH react with 1 ...

Q: Question

A: Solubility product expression is,

Q: Hi, I need help with this word problem, please. Thank you.  The standard free energy change for a re...

A: Given: Number of electron (n) = 2 Gibbs free energy (ΔGo) = -210 kJ

Q: In a certain population, body weights are normally distributed with a mean of 152 pounds and a stand...

A: To find people must be surveyed if we want to estimate the percentage:  

Q: The treatment of (CH3)2C=CHCH2Br with H2O forms B (molecular formula C5H10O) as one of the products....

A: -Br is a good leaving group and therefore the reactant will generate a 3°Carbocation and then the ad...

Q: Use your knowledge of redox and equilibrium to derive an expression for Keq in terms of E°cell for a...

A:

Q: Why is protonated pyrimidine (pKa = 1.0) more acidic than protonated pyridine (pKa = 5.2)?

A: The structure of protonated Pyrimidine and protonated Pyridine is as shown below:

Q: A1.0-L sample of 1.0 M HCI solution has a 13.5 A current applied for 41 minutes. What is the pH of t...

A: Since HCl is a strong acid. Hence it will dissociate completely into ions Hence moles of HCl = moles...

Q: Once dietary fats are digested and absorbed, why canthey not be released directly into the bloodstre...

A: Blood forms the transport system for all digested materials. but it is an aqueous solution hence fat...

Q: Calculate the pH of a 0.600 M solution of methylamine CH3NH2.  Kb = 4.4 x 10–4

A: CH3NH2 is a base and CH3NH3+ is its conjugated acid. pKb of CH3NH2 is 4.4×10-4. Expression for Kb is...

Q: Determine the formula of the unit cell above, using Cu and O for the atoms. Please show your work. C...

A: 4 Cu atoms are present in the Diagonal of the unit cell . 8 O atoms are present in the corner and 1 ...

Q: Absorption of light by an atom causes an electron to: Group of answer choices A. None of the other...

A: According to Bohr`s atomic theory,  electrons in an atom move from a lower energy level to a higher ...

Q: What is the Ka for the reaction

A: The relation between dissociation constant of acid and dissociation constant of base for conjugate a...

Q: Acetone, CH3 OCOCH3, is a fragrant liquid that is used as a solvent for lacquers, paint removers, an...

A:

Q: The following gas phase system is at equilibrium: CCL4(g) + CH4(g) 22 CH,Cl½(g) The pressure of each...

A: The relationship between ΔG i.e Gibbs free energy change and equilibrium constant (K) is given by  Δ...

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.