How many moles of tungsten atoms are in 4.8 x 10^24 atoms in tungsten. a. 8.0x10^0 moles b. 8.0x10^23 moles c. 2.8x10^48 moles

Q: A student weighs 1.966 g of NaHCO3. She then heats it in a test tube until the reaction is complete.…

A: It is based on the concept of stoichiometry.Stoichiometric reactions are reactions where a…

Q: RTING AMOUNT X 8 CO How many moles of C,H, (heptane) must be reacted according to the following…

A: Combustion of heptane C7H16(l) + 11O2(g) ---> 7CO2(g) + 8H2O(g) Enthalpy change (∆H) -> Heat…

Q: If 1.3618 moles of AsF3 are allowed to react with 1.0000 mole of C₂Cl6, what would be the…

A: Given a reaction : 4 AsF3 + 3 C2Cl6 → 4 AsCl3 + 3 C2Cl2F4 If 1.3618 moles of AsF3 allowed to react…

Q: 3. A 2.0g sample of juice from a fresh lime was diluted with water and filtered to remove the…

A: Molarity represents the number of moles of a solute present in 1000 mL of solution.So, the number of…

Q: Enter your answer in the provided box. The rate constant for the following second-order reaction is…

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Q: The combustion of propane may be described by the chemical equation C₂H₂(g) +50₂(g) 3 CO₂(g) +…

A: Propane reacts with oxygen to form carbon dioxide and water. The equation for the balanced chemical…

Q: Answer all questions in the spaces provided 1. a) Draw the full quantum electron configuration for…

A: a) The atomic number of Manganese (Mn) is 25. So, the electronic configuration of Manganese (Mn) is…

Q: What is the appropriate reagent/reagents for the step 1? CH3 NO₂ A) NaBH4, ethanol B) KCN, acetone…

A: This reaction is the reduction of Nitro group and convert to-NH2 group.This can be done by using…

Q: = O MEASUREMENT Setting up a unit conversion A student sets up the following equation to convert a…

A: Eexl

Q: A NASA spacecraft measures the rate R at which atmospheric pressure on Mars decreases with altitude.…

A: We have to convert the given unit into J cm -4 .

Q: MISSED THIS? Read Section 12.5. You can click on the Review link to access the section in your…

A: According to Arrhenius, we can relate the rate constants as following:k = Aexp(-Ea/RT)Where:k = rate…

Q: What is the pH of a 0.50 M weak acid solution. The pKa of the weak acid is 11.5. Report 2…

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Q: Pleassseeeeeeee explainnnnnnn

A: Number of moles is given by:Molarity is given by:

Q: Please fill in the missing resonance structures (1), (2), and (3) from the options below. E :0: :0:…

A: The missing resonance structure of the given compound is to be identified.

Q: A compound has a molar mass of 56.11 g/mol and an empirical formula of CH2 what is the molecular…

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Q: The equilibrium constant, Ke, for the following reaction is 0.0952 at 350. K. CH4 (9) + CCl4 (9) =…

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Q: 1.1 Provide IUPAC names of the following aromatic compounds: d) Br OH CI NH₂ CH3 f) CO₂H NO₂

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Q: Determine the mass in grams of 8.01x10^21 atoms of barium. (The mass of one mole of barium is…

A: Number of Barium atoms = 8.01 × 1021 atommass of 1 mole of Barium = 137.33 gNote:1 mol of Barium…

Q: At a certain temperature the rate of this reaction is second order in N2O5 with a rate constant of…

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Q: What is the major product formed for the following reaction? OH H-I

A: The question is based on organic reactions.     we need to identify the product formed and explain…

Q: What is the total ionic equation and net ionic equation of AgNO3 + NaI --> NaNO3 + AgI

A: Given chemical equation is :  First write balanced molecular equation , then write phases of…

Q: If the rate of change of Cl2 is -0.0480M/s, what is the rate of change of NO? I 2NO(g) + Cl₂(g)…

A: Rate is equal to rate of appearance of reactant and also equal to rate of disappearance of…

Q: Describe and explain the effect(s) on your result for the following possible experimental errors. In…

A: A) After adding DCM to the counterfeit pharmaceutical at the beginning, you didn’t stir or shake the…

Q: For the unbalanced reaction below, calculate how many grams of potassium chloride form when 6.53 g…

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Q: Calculate the unsaturation number for the chemical formula given below. The compound only contains…

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Q: Be sure to answer all parts.   How many moles are contained in each number of grams of fructose…

A: We have to calculate the number of moles of fructose in a given mass, Using the formula are…

Q: What is the difference between a strong acid and a weak acid in terms of dissociation? Draw Lewis…

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Q: ||| Writing net ionic equations The following chemical reaction takes place in aqueous solution:…

A: For net ionic equation first of all aqueous species are broken into aqueous ions then from both side…

Q: The following series of reactions yields ___________. 1) Butanoic acid and SOCl2; set product aside…

A: In the first step of this reaction sequence-Butanoic acid react with SoCl2 form acid chloride.On the…

Q: II. Solve the following problems: 1. Calcium is determined in serum by microtitration with EDTA. A…

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Q: Rel. Abundance 100 80- 60- 40- 20- 0.0 20 40 m/z 80 a) Based on the mass spec above, what is the…

A: Mass spectrometry is an analytical technique that is aimed at structure elucidation of a compound.…

Q: (CH3)3N*. + Br2 FeBr3

A: Aniline is ortho/para directing. Anilinium ion is meta-directing because of the presence of positive…

Q: Which of the following inequalities summarizes the contribution that entropy makes to boiling point…

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Q: Write the empirical formula for at least four ionic compounds that could be formed from the…

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Q: Predict the product and write a complete, balanced equation for each reaction. a. Decomposition:…

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Q: PROBLEMS transformations: 8.74 Eto Identify what reagents you would use to achieve each of the…

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Q: Name the following organic molecule. Br 3 CI A/

A: The nomenclature system is the identity of organic molecules.

Q: Be sure to answer all parts. Calculate the molality of each of the following aqueous solutions. (a)…

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Q: Explain the term pressure and state its S.I. unit. (B) Explain Henry’s law. (C)A bottle of H2 has…

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Q: State the possible Bravais lattices for centred cubic systems and briefly explain how General…

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Q: A sample of neon gas at a pressure of 0.692 atm and a temperature of 177° C, occupies a volume of…

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Q: 19.A compound with molecular formula C7H₁402 displays the following IR, 1H NMR and 13C NMR spectra.…

A: Molecular formula = C7H14O2

Q: Determine AG° for a reaction when AG = -171.0 kJ/mol and Q = 0.043 at 298 K. (R = 8.314 J/mol K) ●

A: G = -171.0 KJ /mol = -171.0 x 103 J/molQ = 0.043 at 298 KR = 8.314 J/ mol .K

Q: What is the molecular geometry around the three carbons and the oxygen in 2-propanol (isopropanol)?

A: The structure of a molecule can be determined by using the VSEPR theory. According to this theory…

Q: Draw the major organic product that contains the carbon labeled with a * (do not include i si Base:…

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Q: Which of the following is expected to show 3 signals in the 1H NMR?

A: Protons at different chemical environments give different chemical shift values in 1H-NMR. Below is…

Q: Calculate E°cell and indicate whether the overall reaction shown is spontaneous or nonspontaneous.…

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Q: 5. For each of the following pairs, circle the most stable alkene and provide the name for each of…

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Q: Green plants use light from the Sun to drive photosynthesis. Photosynthesis is a chemical reaction…

A: mass of water (H2O) used = 3.26 g Balanced chemical equation involved will be :  To determine : mass…

Q: What is the classification for the carbon atom (highlighted by an arrow in the figure below) that is…

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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.