sealed flask contains 366 mL of gas at 42.7 oC and 836 mmHg. If the gas in the flask has a mass of 1.7 g, what is the molecular

Q: if oil is placed in a large body of water, such as a lake or ocean it spreads out to form a surface…

A: Answer: Whenever one shape is converted into another shape, volume of old shape is always equal to…

Q: The reduction half-reaction for a Hall-Heroult electrolytic cell is represented by the following…

A:

Q: what is delta Hr for the reaction 3NH3 (g) + 3.75 (g) - 3NO(g) + 4.5 H20 (g) delta Hr =…

A:

Q: ∞ 1) H₂SO4 A 2) H₂0

A: Protonation of alkene give carbocation which rearranges to more stable carbocation. The the more…

Q: electron configuration of atoms [G]ns²m f³ [G]ns² m d¹np³ [G]ns²m d¹np blocks location of elements…

A: 1. If last electron enter to s subshell then it is a S block element . 2. If last electron enter p…

Q: Calculate the volume in liters of a 80.5 g/L. copper(II) sulfate solution that contains 286. g of…

A: Concentration in g/L is equal to the mass of the solute (in g) divided by the volume of the solution…

Q: What are the species type of I and II (nucleophile or electrophile)?

A: Nucleophile : A nucleophile is a chemical Species that forms bonds by donating an electron pair .…

Q: Which of the following bases will have the strongest conjugate acid? ( CHỊCHINH, CsHsN NH3 (CH3)3N…

A:

Q: To answer this question, you may need access to the periodic table of elements. Which of the…

A: Alkaline earth metals are known as alkaline earth metals because of their high abundance in earth…

Q: What is chelating agent? What is the chelating agent being coupled to sepharose in this experiment?…

A:

Q: *GIVE EXPLANATIONS FOR ALL QUESTIONS (EXCEPT NOMENCLATURE). 9) Predict and draw the structure(s) of…

A:

Q: Draw structures for products H-J and provide a mechanism for one of the transformations shown o Me…

A: These are the examples of tetrazole synthesis, pyrazole synthesis and Fisher indole synthesis.

Q: Write and balance redox reaction. a. Hydrogen peroxide, H₂O2, can be used as a dechlorinating agent…

A: Answer:- This question is answered by using the simple concept balancing the redox reaction using…

Q: 2 3 2 2 Na(s) + Na(s) + 10 Mg(s) + Mg(s) + H₂O2(aq) → 10 Cl2(g) O2(g) ->> - O2(g) ->> HCl(aq) ->>…

A:

Q: We titrate a solution containing 10 mL of CH3COOH 0.1095 mol/L and 90 mL of distilled water, with…

A:

Q: If an identical titration is performed with the strong acid HCl, explain why the pH at the…

A: In case of a Strong acid-Strong base, both strong acid and base dissociate completely in the…

Q: KMn 04 + FeSO4 KMn 04 + Fe S04 Na OH + K₂ C₂ 04 -> MnO₂+ Fe ³+ H₂ 504₂ MnO₂ + CO 2+

A: Steps involved in balancing ionic equations  of Redox reactions 1) Write down ionic equation and…

Q: Which element has an outer shell electron configuration of 2s²2p⁵? a.) F b.) Ne c.) N d.) C

A:

Q: IV) Continued. Mechanism: 3 NH₂ [HNO₂] H₂SO.

A: Here we are required to find the product of the reaction.

Q: 2. The solubility of slaked lime, Ca(OH)2, in water at 20 °C is 0.185 g/100.0 mL. (a) What volume of…

A:

Q: 16 Indicate whether each pair of Fischer projections represents enantiomers or identical structures.…

A: Enantiomer compound have same connectivity and mirror image to each other

Q: What is the pH of a 0.250 M  solution of H2SO4? Ka2 = 1.20×10–2

A:

Q: Insoluble PbBr2(s) precipitates when solutions of Pb(NO3)2 and NaBr are mixed. Pb(NO3)2(aq) + 2…

A:

Q: H₂C isopropoxide a b с + CH3 K d e H3C-I 8+ iodomethane Prelab Question #3 Homework Unanswered Which…

A:

Q: Select the electrophile from the following list of molecules: a b с d e Select an answer and submit.…

A: electrophile is a chemical species  which forms bonds with nucleophile  by accepting electron pairs

Q: How much energy is evolved during the reaction of 51.2 g of Al, according to the reaction below?…

A: Given reaction: Fe2O3(s) + 2 Al(s) → Al2O3(s) + 2 Fe(s)       ΔH°rxn = -852 kJ We have to find the…

Q: 9) The following thermochemical equation is for the reaction of ammonia(g) with oxygen(g) to form…

A:

Q: How many types of bonds are present in ethane? In ethene? In ethyne? What type of isomers is shown…

A: Types of bond Type of isomers in butane Type of isomers in C2H6O

Q: A chemist must prepare 850. ml. of 10.0 mM aqueous potassium permanganate (KMnO,) working solution.…

A: Given -> Final volume of solution = 850 ml = V2 Final concentration= 10.0 mM = 10.0 × 10-3 M = M2…

Q: added, mL 20.6 mL 19.70 mL Use the equation shown to calculate the concentration of the sodium…

A:

Q: any drivers report low tire pressure at the start of winter when the temperature drops. If the…

A:

Q: When a 25.0 g sample of a copper strip is heated from 20.0°C with the addition of 178 J of energy is…

A:

Q: = 0.344 (absorption of light) ℓ = 1.0 cm Stock solution of KSCN and mM Fe(NO3)3 : 5 mL   The…

A: #Question-1: The balanced equation for the reaction of Fe3+(aq) and SCN-(aq) is: Fe3+(aq) + SCN-(aq)…

Q: 8) Which of the following solutions is a good buffer system? A) A solution that is 0.10 M NaOH and…

A:

Q: Devise reasonable synthesis of the target molecules shown below. H Br steps steps но sx

A: Protection of aldehyde with ethylene glycol gives cyclic acetal. Bromo aryl is then converted to…

Q: 3. The manufacturer of the vinegar used in this experiment claims that the vinegar contains 5%…

A: The calculated mean concentration of acetic acid, CH3COOH = 0.877 M or 0.877 mol/L This means that…

Q: Is the following compound a primary, secondary, tertiary, or quaternary amine? CH3NH₂ A) Primary…

A: Since, In amine, N attached with one carbon then primary amine, if attached with two carbon the…

Q: Provide the correct systematic name for the compound shown here. t

A: Nomenclature of organic compounds.

Q: The figure represents three identical containers connected by valves that can be closed or opened to…

A: This question belongs to the gaseous state. There occurs a relationship between volume and pressure…

Q: How much solute is required to prepare each of the following solutions? (a) grams of C6H12O6 for…

A: We have to calculate the mass of solute required to prepare the solution

Q: what are compounds in a sentence?

A: A compound clause or sentence is a clause that joins two independent clauses, usually using a…

Q: 13.36 Identify each of the following as the a or ß isomer: а. CH₂OH b. CH₂OH Н HO Н ОН ОН Н Н ОН Н…

A: Anomers are two sugar that differ in the configuration only at the carbon that was carbonyl carbon…

Q: 12) Which of the following represents a chemical property of copper metal? borts

A: we have to select the chemical property of copper metal from the given statements

Q: 3) The law of constant composition says that all substances have the same composition that the…

A:

Q: 11) The molarity of a solution prepared by diluting 43.72 mL of 1.005 M aqueous K2Cr2O7 to 500. mL…

A:

Q: с D E Data Set B Trial * A B с D E Data Set C Trial A B с D E 2.2 2.2 2.2 2.2 50.0 mL of (?)M KOH…

A: # qsoln for Trial-A: Volume of KOH taken = 50.0 mL Volume of HNO3 taken = 50.0 mL  Total volume, V =…

Q: 14. What is the molar mass of Ca? 15. What is the molar mass of H₂SO4? 16. What is the mass of 3…

A:

Q: Complete the mechanism for the reaction of 2-butanol in sulfuric acid at 140 °C. Sulfuric acid is…

A: Alcohols in the presence of acid on heating give alkenes by E1 mechanism.  E1 mechanism: It proceed…

Q: Calculate the pH of 0.14 M NaF solution. The Ka for HF is 7.2x10-4 a. 8.09 b. 8.12 c. 8.14 d. 8.18…

A:

Q: The strongest of the following intermolecular forces is Dipole-dipole London dispersion…

A: The strongest intermolecular forces among the given forces is  dipole-dipole London dispersion…

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.