23 How many moles are there in 8.74 x 10 propane molecules of

Q: Use the data collected in the table to explain the formation of one of the compounds assembled…

A: All the above compounds are ionic, So the metal donates its electron to the non-metal group and…

Q: A 10.0L tank at 6.85°C is filled with 3.50g of carbon dioxide gas and 13.0g of boron trifluoride…

A: Gas equation, PV = nRT Partial pressure of gas = Mole fraction × Total pressure.

Q: Lead levels in drinking water should be no higher than 15 ppb. What is this in mol/L? Assume the…

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Q: For each of the following antibiotics, determine how many moles of each compound are present for the…

A: Given : mass of compounds Tip : mole = given mass ÷ molar mass

Q: 1) Consider the Bohr Model and the Quantum Mechanical Model. a) What part(s) of the Bohr model are…

A: Parts of Bohr model that is present in Quantum mechanical model:  1) Both the above models describe…

Q: Determine the change in entropy when a sample vaporizes if the boiling temperature is 145.82 C and…

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Q: C. 오 CH,CH,O- CH3CH2OCH2 CH3 CI™

A: This is an epoxide opening and again epoxide forming reaction where the nucleophile ethoxide attacks…

Q: Temperature ometric pressure sure of water at hydrogen gas pro

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Q: Draw the structure of an alkyl chloride that will undergo an E2 elimination to yield only the…

A: Given : structure of product Tip : In E2 reaction hydrogen removes from beta position

Q: In tube #2 you will be mixing 4.00 mL 3.00 x 10-4 M Fe²+ solution with 1.00 mL 3.00 x 10-4 M 1,10…

A: We will first calculate the moles of Fe2+ and 1,10 phenanthroline. Number of…

Q: 1. How many sigma and pi bonds are in aspartame → sigma pi

A: In a compound first formed bond is Sigma bond and if second bond is formed then the formed bond is…

Q: 1. Perform the following calculations for Mg(s) a) Calculate the vapor pressure of water at the…

A: As per the guidelines, we will solve the first three parts, if you need any other part to be solved…

Q: 3. Pepsin cleavage of the peptide Ala-His-Gly-Trp-Val-Ile-Arg-Gly would yield the peptides…

A: Pepsin is a enzyme which do cleavage of peptide bond in protein.  Argininosuccinate synthetase is…

Q: Predict the major product in each of the following reactions. Name the alkene reactant and the…

A: These reaction can be explained as:

Q: 7. What is the half-life of an unknown substance if it is observed to decay from 15 mg to 3.75 mg in…

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Q: What is correct name of the chemical formula of Ag(NO3)2? Group of answer choices Silver Dinitiride…

A: Given -  Ag(NO3)2 Nitride -> N3- Nitrite -> NO2- Nitrate ->NO3-

Q: 6. Arrange the following atoms in order of decreasing size-largest to smallest (assuming all atoms…

A: As we move along the period atomic size decreases and as we move along the group atomic size…

Q: dissolved O2 molality of 6.7 mmoles/kg*H20, was very low in comparison to normal conditions. The…

A: To calculate the standard molality of O2, given that the Henry's law constant for O2 is KH = 7.92 ×…

Q: Consider the following sketches (1-8) representing molecular orbitals (MOs) obtained by combining…

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Q: There are a wide range of oils and fats used in the culinary arts. Arrange the following  in order…

A: We are provided with a wide range of oils and fats used in the culinary arts. we need to arrange…

Q: (a) Assuming standard conditions, arrange the following in order of increasing strength as oxidizing…

A: Note- Since you have asked multiple questions, we will solve the first question for you. If you want…

Q: A balloon is filled to a volume of 1.75 L with 3.00 moles of gas at 25 °C. With pressure and…

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Q: Macmillan Learning This is a fun problem to help realize why barometers were constructed with…

A: given, density of mercury,ρ1 = 13.5 gmLdensity of water ,ρ2=1.00 gmLheight of mercury  column,h1 =…

Q: A )What happens to the rate of reaction as the temperature in the reactor goes up? B) What happens…

A: we have to disscuss about the affect of temperature , pressure on rate of a reaction in gas phase as…

Q: MAKING CONNECTIONS BY SOLVING PROBLEMS (These problems require that you use what you have learned…

A: Given Volume=25.0mL  Moles of CO2=2.33 mol  Moles of nitrogen=4.66mol  Temperature=32°C = 32 + 273 =…

Q: AH Changes sign when a process is reversed Click on the button within the activity and analyze the…

A: For question 1, given reaction: B(s) + 32O2(g) → B2O3(s),   ∆H = -1270 kJ We have to calculate the…

Q: If 20.0 kg CO₂ are produced from the combustion of butane (C4H10), what is the mass of oxygen gas…

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Q: O There is no subshell fitting this description 3p O 3s O 3d

A: n = Represent principle quantum number     l = Azimuthal quantum number

Q: Can the following molecules react with neutral water at room temperature? H₂O H H₂O H₂O

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Q: In each of the molecules drawn below one chemical bond is colored red. Decide whether this bond is…

A: Given : structure of molecules Tip : if there is electronegativity difference between two atoms then…

Q: 4. What will be the geometry about each central atom in the following molecules? Draw a sketch of…

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Q: For the reduction of 2-methyl cyclohexanone to methyl cyclohexanol using NaBH4...   1. What is the…

A: Sodium Borohydride (NaBH4) is a very strong reducing reagent and it reduces carbonyl groups to…

Q: The density of moist air (ideal gas mixture) at 20°C temperature and 700 mmHg pressure was found to…

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Q: For a certain chemical process, the addition of an acid and a base to a buffer must keep the pH in…

A: Answer:- This question is answered by using the simple concept of buffer solution. For the best…

Q: Create a table noting what makes an electrolytic cell different than a voltaic cell as far as…

A: This question is based on electrolysis and we are asked to differentiate between electrolytic and…

Q: Match the correct number of nitrogens with the correct situation that you see below v 2 NH4NO3 A. 4…

A: Count the no. of N' atom by simply multiply by its coefficient.

Q: 6. By inspection of the reaction profile for the reaction A to D given below, answer the following…

A: Activation energy is the extra amount of energy required by reactant to get converted into the…

Q: A(aq) 3 B(aq) K = 9.43 x 10-6 at 500 K If a 4.10 M sample of A is heated to 500 K, what is the…

A: Given reaction: A(aq) ⇌ 3B(aq) Kc = 9.43×10-6    at 500 K The initial concentration of A = 4.10 M We…

Q: Calculate the mass of Mg formed upon passage of a current of 60.0 Amp for 4 hours 50 minutes through…

A: Mg+2  + 2e-  → Mg(s)

Q: Calculate the pH of 0.305 M Ca(OH)2, assuming the solution ionizes completely. Read more about this…

A:

Q: In a sealed and rigid container, a sample of gas at 2.90 atm and 25.0 °C is heated to 50.0 °C. What…

A: From the question we have, P1 = 2.90 atm T1 = 25°C = (25+273) K = 298 K T2 = 50°C = (50+273) K = 323…

Q: Referring to the following sketches of molecular orbitals obtained by combining the atomic orbitals…

A: Given : combination of molecular orbitals  Tip : p-orbital when combined sideways with different…

Q: A tank of O₂ shows a pressure of 7.35 atm at a temperature of 30.0 °C. What is the density (in g/L)…

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Q: Referring to the following sketches of molecular orbitals obtained by combining the atomic orbitals…

A: Given : orbitals overlapping Tip : side way with different phase overlapping will form π2p* .

Q: 15.10 For each of the following fatty acids, give the shorthand notation for the number of carbon…

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Q: What quantum numbers specify these subshells?

A: Given : orbital For s-subshell , l =0        p-subshell, l =1        d-subshell, l =2…

Q: Select all of the following that are typically true for metals. Group of answer choices Transparent…

A: Given: List of Properties of metals: Transparent High Strength Low Density Low Melting Point…

Q: The following reaction results predominantly in: 0=C HNO3 H₂SO4

A: In this reaction, benzene ring is nucleophile that attacks the electrophile due to which H is…

Q: Consider the molecule of Phosgene, COCI2. Its Lewis structure is: Trigonal planar Tetrahedral What…

A:

Q: Given the following substances, if the substance is ionic, correctly match the ions from which it is…

A:

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.