molarity

Q: What are solid substances?

A: Given,  solid substances

Q: Determine the AH for the overall reaction based on the three-step thermochemical processes below: AH...

A: The steps of the reaction given are,  

Q: LOME ,个 OMe ÇN

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Q: In a hexane-octane solution containing 27.50 grams hexane and 42.5 grams of octane at 20°C, the tota...

A: The amounts of hexane and octane in the solution is:   Amount of hexane = 27.50 g   Amount of octane...

Q: Molecule ЕPG Нyb (circle if polar) 2D Lewis Structure 3D Lewis Structure MG ВА H2SO4 N2H2 XeBr4

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Q: Question 13 An ē at its excited state is stable unti it return to its ground state. If an ē jumped m...

A: In an atom electron rotates around the nucleus in certain orbital.Transition of electron occur when ...

Q: does a co spot on TLC plate have two Rf values?

A: co-spot in TLC

Q: Draw the skeletal (line-bond) structure of (S)-1-ethoxy-2-methylhexane. Use dash or wedge bond to in...

A: Answer: This a question based on stereochemistry in which two molecules have similar molecular formu...

Q: nitrous oxide, N2O, and water. 2NO(g) +H2(g) →  N2O(g) + H2O(g) In a series of experiments, the fo...

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Q: Discuss the stereochemistry of these compounds. Hint: this means saying how many diastereoisomers th...

A: Solution                        Given that  The stereochemistry of these compounds  Find these compo...

Q: How many grams of ascorbic acid must be dissolved in 0.15 liters of water to produce a 0.3 M solutio...

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Q: DRAW the line angle formula of CH3OH and HCN. Please follow the rules of drawing the line angle form...

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Q: What physical properties can be deduced about the unknown substance in order for it to be soluble in...

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Q: Which of the following starting materials and reagents would be best to produce 2-hexanol? a. heptan...

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Q: 7. Calcium chloride, is added to a canned vegetables to maintain the vegetable's firmness. When adde...

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Q: of liquid mercury at 25.00 C is converted to solid mercury at its melting point. Constants for mercu...

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Q: IUPAC NAME

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Q: Current Attempt in Progress How many moles of H2 and N2 can be formed by the decomposition of 0.227 ...

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Q: 5 CH3 4/ H-CEC- CH=CH 1 2 3

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Q: Consider the following system at equilibrium where AH° = -87.9 kJ/mol, and Kc = 83.3 , at 500 %3D К....

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Q: Ammonia, NH3, is produced at high temperatures and pressures in the presence of a catalyst as shown ...

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Q: molecular geometry

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Q: Predict and identify the reactants of the following products. Draw the COMPLETE mechanism.

A: The functional groups of a molecule are the key constituents that provide notable chemical reactions...

Q: Туре of Crystal Covalent Metallic Ionic Molecular Substance Network Dispersion Forces Dipole- Dipole...

A: In this question we have to determine the type of crystal solid formed by the given compounds.

Q: Which of the following is consider as weak electrolytes? Select one: a. sulfuric acid b. Nitric Ac...

A: Weak and strong electrolytes depend on ionisation in an aqueous solution. 

Q: How many mL of 0.300 N H2SO4 would be required to neutralize 38 mL of 0.450  N NaOH? Select one: a....

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Q: Calculate the maximum work that can be obtained from the Daniell cell Zn/Zn 2* (aq)// Cu2+/ Cu given...

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Q: If a 1.065 g sample of magnesium oxide of 84.736% were treated with 50 ml of 1.017 N sulfuric acid, ...

A: A 1.065 g magnesium oxide sample of 84.736% purity is treated with 50 mL of 1.017 N sulfuric acid so...

Q: Cyclic esters and amides are called lactones and lactams, respectively. These compounds are classifi...

A: classification of lactones and lactams

Q: Write net ionic equation for reaction that occurs when aqueous solutions of perchloric acid and ammo...

A: Given, The reaction occurring between aqueous solution of perchloric acid (HClO4) and ammonia (NH3)....

Q: Group - B Find out correct R &S nomenclature for the following structure of tartaric acid. ÇOOH H- H...

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Q: What concentration of potassium hydroxide is needed to give an aqueous solution with a pH of 9.770? ...

A: pH = 9.770   pH + pOH = 149.770 + pOH = 14pOH = 14 - 9.770pOH = 4.230   pOH = - log [OH-]4.230 = - l...

Q: When May an expression be simplified and when must the quadratic equation be used? in solving a prob...

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Q: Directions: Read each item carefully and select the letter of the best answer. Flask Flask 3 Flask 2...

A: 1) Each of these flasks contains the same number of molecules of gas at the same temperature.   

Q: Which of the following requires minimum energy for electronic transition among atomic orbitals of H-...

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Q: 3.28 Look at the following energy diagram for an enzyme-catalyzed reaction: (a) How many steps are i...

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Q: What is the molecular formula if the empirical formula is C2H5 and the molecular molar mass is 58.14...

A: Empirical formula = C2H5  Molecular molar mass = 58.14 g/mol  Molecular formula = ? 

Q: repression of a eukaryotic gene by an RNA be more efficient than repression

A: In this question we have to choose correct option of a repression pa a eukaryotic gene by an RNA be ...

Q: Cyclopropane, C3H6, is converted to its isomer propylene, CH2=CHCH3, when heated. The rate law is fi...

A: Initial conc= 3.46*10-2molL-1 Final conc=? t= 7.55*102sec Rate const= 6.3*10-4s-1 1st order reaction...

Q: Show complete calculations for the pH of a 0.115M solution of ammonia. The Kb for ammonia is 1.8 x 1...

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Q: he mass o

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Q: Mercy is experiencing a fever. Upon taking her temperature, it was found out the she has a temperatu...

A: Hence 3rd option is correct that is 1.43

Q: 1 A sample of a Fe2+ solution requires 26 mL of 0.0200 M K2Cr2O7 for a reaction  in which Fe2+ is ox...

A: Normality and molarity are two unit of concentration. Here we required to find the  normality of K2C...

Q: single replacement reactions and balane

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Q: Propan-2-one to 2-methylpropene transformation can be done using ans. Michael addition reaction Witt...

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Q: You need to make 7.04 L of 1.32 M KNO3. What molarity would the potassium nitrate solution need to b...

A: The law of dilution can help to prepare low concentration solutions by using stock solution. 

Q: 8. The orbital shape is similar in all orbitals. 9. M.O theory describes the stability of molecule.

A: No , all orbitals are not of similar shape. 

Q: The relative atomic mass of antimony is 121,8. Antimony exists as two isotopes - antimony 121 and an...

A: Given, The relative atomic mass of antimony is 121.8 and it's two isotopes  antimony 121 and antimon...

Q: What concentration of potassium hydroxide is needed to give an aqueous solution with a pOH of 1.300?...

A: Given, pOH of the solution = 1.300 Concentration of potassium hydroxide, [KOH] solution = ? Note: Po...

Q: KHC8H4O4 function as monoprotic acid. If 1.46 grams of the sample of impure KHC8H4O4 requires 34. 3 ...

A: Given Potassium hydrogen phthalate is a monoprotic acid

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.