1) How many sodium atoms are there in 0.3 moles of Na atoms? 2) A sample of carbon dioxide is made up of 1.21x10^23 molecules. Calculate how many moles of molecules the sample contains. 3) A bottle of cleaner "with ammonia" contains 1.7 g of NH3. Calculate how many molecules of ammonia are in the bottle.

Q: ee Figure 7-8. Which of the structures shown in Figure 7-8 represents the host stable conformation…

A: Given -> Cis-1,4-dimethylcyclohexane  Cis(1,2),Cis(1,4)  -> (e,a) or (a,e)…

Q: A7. (a) Given that for an ideal gas rin(1) AG=nRT In aG aP =V, show that for a change in pressure…

A: Given is the relation of change in Gibb's free energy with change in pressure at constant…

Q: Н. H₂CH₂C CH₂CH3 CH3 CI H O (3R,4S)-4 chloro-3-ethylpentane OR-2-chloro-3-ethylpentane (3S,4R)-4…

A: The IUPAC name of the given Newmann projection can be obtained by converting in to Fischer's…

Q: To be a useful plastic, an amorphous polymer must be below its Tg at the ambient temperature, while…

A: Answer: The glass transition temperature (Tg) is a temperature at or above which the molecular…

Q: 2. Provide mechanisms showing all intermediates, formal charges with arrows to show "electron flow."…

A: Given that, the reaction schemes are shown below We have to draw the mechanism of those reactions…

Q: Ci mechanism: JI... Br Ph mechanism: Ph NaCN THF substitution -NH₂ A elimination

A:

Q: Germanium configuration has an electron of [Ar] 4s² 3d10 4p². What is its maximum spin multiplicity?…

A: Since, Maximum spin multiplicity = 2S + 1 where, S = total spin then,

Q: ,كا. J.265 5.84x 5.84x10-2 M C12. What will be the and concentrations of the three gases once…

A: The given reaction is, COCl2g↔COg+Cl2g The moles of CO added is 3.22 x 10-2 mol. The concentration…

Q: Decide whether these proposed Lewis structures are reasonable. proposed Lewis structure :Z: .. T :Z:…

A: The valence shell electrons in a molecule are depicted in an extremely simplified manner by a Lewis…

Q: might dissolve at different times. Consider: • which day the least sugar dissolve in which day the…

A: When solute dissolves in a solution that process is called dissolution.  Rate of dissolution depends…

Q: Name (by the common system of nomenclature) the amine (or ammonia) that is formed by the basic…

A: The question is based on the concept of organic reactions.   We have to identify the product formed…

Q: Now consider, nx[M1] = P11(x-1) P12 If x=0.53;  n0.53 [M1] = 0.31 The fraction of acrylonitrile…

A:

Q: The Hartree-Fock self-consistent field method is an iterative approach to finding exact quantum…

A: The Hartree-Fock self-consistent field (HF-SCF) method is an iterative approach used to solve the…

Q: 1. Provide the product(s) and mechanism for the reaction. Include all the details of the mechanisms…

A: Presence of light indicate that the mechanism followed in the reaction is free radical mechanism.

Q: For each row in the table below, decide whether the pair of elements will form a molecular or ionic…

A: The table given is-

Q: 1 2 3 *** A I... in' LB

A: Planar cyclohexane chair conformation 1,2(cis) and 1,4(cis) 1,2(trans) and 1,4(trans) 1,3(cis)…

Q: A 0.2174 g sample of a pure carbonate, XnCO3(s), was dissolved in 50.0 mL of 0.1500 M HCl(aq). The…

A: Given: Molarity of HCl = 0.1500 M Volume of HCl = 50.0 mL Mass of sample = 0.2174 g Volume of NaOH =…

Q: Select the reagents you would use to synthesize the compound below from benzene. Use the minimum…

A: H2/Pd is used to reduce aromatic ketone to alkane.

Q: Using the formula M1V1 = M2V2, how many millimeters of 6.0M sodium hydroxide  are required to…

A:

Q: and c. handwritten solutions are more clear and accurate Using standard entropy values, calculate…

A:

Q: For NaOH + CaCl₂ a. Which product is soluble/aqueous? b. Which product is insoluble/solid/the…

A: Given that, reactions are NaOH + CaCl2 → BaCl2 + Na2CO3→ We have to tell in the given reactions,…

Q: Write an acceptable IUPAC name for the compound below. (Only systematic names, not common names are…

A: IUPAC nomenclature: In IUPAC nomenclature  a molecule's longest chain of carbons is taken as parent…

Q: Draw detailed arrow-pushing mechanisms for the following transformations: of MgBr Hint this one…

A: “Since you have posted multiple questions, we will provide the solution  only to the first question…

Q: What is the mole ratio between Cu(C2H3O2)2 x H2O and NaC7H4SO3N x H2O? the answer is: 1 mol…

A: Given , mol ration between Cu(C2H3O2)2 . H2O & NaC7H4SO3N . H2O

Q: H-X HF HCI HBr HI ΔΗ (kJ mol-¹) -13 -59 -63 -57

A:

Q: 5. Name the following compounds. a) Ni(CO)2Cl2 b) Na4[Mn(acac)2Br4] c) [V(H2O)40] I d)…

A: Note: Since you have posted a question with multiple sub-parts, we will provide the solution only to…

Q: Name the major organic compound formed by the following reaction: OH KMnO4

A: concept used : oxidation of secondary alcohol gives ketone

Q: Draw the structure of the major organic product(s) of the reaction. 1. LIAIH4, ether 2. H₂O You do…

A: The question is based on the concept of organic reactions. reaction of amide with lithium aluminium…

Q: Decide whether each pair of elements in the table below will form an lonic compound. If they will,…

A: The bond between two ions formed by the complete transfer of electrons is known as an ionic bond.…

Q: An aqueous solution is prepared to be 0.261 M in sodium formate and 0.155 M in acetic acid. (1) Is…

A:

Q: E. Chlorine monofluoride can react with fluorine to form chlorine trifluoride: (1) CIF(g)+F2(g)…

A: The thermochemical equations can be treated as algebraic equation which can be added,  subtracted,…

Q: Product and type of reaction? O 'CI LDA, THF

A:

Q: 13. Classify the pairs of molecules as not the same molecule, structural isomers, diastereomers.…

A: The molecule having a dissymmetric center is said to be a chiral molecule i.e. molecule having lack…

Q: Determine the mass of Br2 produced from the reaction of 7.00 mol of HBr with excess K₂SO4. K₂SO4 + 2…

A: Answer: Thee quetsions are based on the concept of limiting reagent. Limiting reagent is the…

Q: Draw the correct molecule in the box to the right. Label the relevant peaks in the spectra with the…

A: The question is based on IR spectroscopy. we need to analyse and interpret the spectra. we need to…

Q: a) A Haworth projection for an 3-methyl glycoside form of D-mannose is provided below. Where does…

A:

Q: sample of Freon-12 (CF2Cl2) occupies 2.898 x 101 L at 338 K and 2.198 x 102 kPa. Find its volume (in…

A:

Q: Would you predict that a solution of KCI would be acidic, basic, or neutral? Explain your reasoning.

A:

Q: 16-18. How many L of 2.0 M nitric acid (HNO3) is required to react with 75.0 g of cuprous oxide…

A:

Q: (ppm) 200 180 160 120 100 80 60 40 20 173.9 CDC13 60.1 34.5 31.4 28.8 22.4 14.2 14.0 24.9

A:

Q: What is the [OH-] of a 1.40 M solution of pyridine (CsHsN, Kb = 1.70 × 10-⁹)?

A:

Q: What is the percent ionization of H₂NNH₂ in a solution with a concentration of a 0.370 M? (Kb = 1.3…

A:

Q: 11. The reaction shown, which is important for the breakdown of polypeptides, would be favored under…

A: The question is based on the concept of organic reactions. we need to identify the conditions in…

Q: Provide the major organic product(s) of the reaction shown below. H₂C CH3 HNO3, H₂SO₂

A: Concept used : Nitrogroup attacks on that ring where there is more electron density

Q: Transmittance (%) 4000 3000 1500 Wavenumber (cm-¹) 2000 1000 500

A: Given IR spectrum of unknown compound

Q: A+B --> C+ D Given the following data and graph, determine the rate law for the reaction. Trial 3…

A: Time elapsed for each trial = 2.0 s Initial absorbance for Trial 1 = 1.46 Absorbance after 2.0 s for…

Q: 2) Based on the number of atoms N, how many normal vibrational modes does CH4 have (CH4 is…

A: 2) Based on the number of atoms N, how many normal vibrational modes does CH4 have (CH4 is…

Q: -6-0 SO3H dentify the reagents represented by the letters in the above reaction scheme. Enter your…

A: Reaction involved following concepts 1) Fridel crafts alkylation 2) sulphonation 3) oxidation of…

Q: Calculate the mass of Oxygen given 1.94x1021 molecules of Si(SO4)2.

A:

Q: The following is the balanced equation for the combustion of butanol in oxygen: C4H9OH(g) + 6O2 -->…

A: Given , Reaction : C4H9OH (g) + 6O2(g) → 4CO2(g) +5H2O(g)

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.