For the reaction C + 2H2 → CH4, how many grams of hydrogen are required to produce 9 moles of methane, CH4 ?

Q: Draw the energy level orbital diagram for tin, Sn.

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Q: At what temperature will 0.75 moles of He gas occupy 16.50 L at 1.25 atm? T = [?] °C Enter…

A: Given that:  Moles(n) = 0.75 mole V = 16.50 L P = 1.25 atm

Q: Decide if each of the following molecules is chiral or achiral. CH₂ CH₂CHCH SH CH, O CH₂ CH CH₂ CHg…

A: Since you have asked multiple type questions, we will solve only first  questions for you. If you…

Q: Table 2   Absorbance vs CoCl2 concentration   Test Tube Number Cobalt Chloride Concentration…

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Q: culationS Dimethylamine (CH3)2NH is a weak base with a p Ka of 11.0. Calculate the pH of a solution…

A: Given, Dimethylamine (CH3)2NH is a weak base. pKa for Dimethylamine (CH3)2NH = 11.0 Concentration of…

Q: 2 NH3   +  3 CuO   -->  3 Cu   +   N2   +   3 H2O In the above equation how many moles of  N2 can be…

A: 2 NH3 + 3 CuO --> 3 Cu + N2 + 3 H2O  Molar mass of CuO is = 63.55+16=79.55 g/mol

Q: How many total atoms are present in the following compound? (Please answer using whole numbers.)…

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Q: Calculate the pH after the addition of 60.0 mL of 0.3 M NaOH to 50.0 mL of 0.20 M LIN O 10.46 11.86…

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Q: quation 2 8+8 H₂ 0₂ Reactants Number of hydrogen atoms Number of oxygen atoms -> go H₂O Product…

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Q: A tank contains 60 kg of salt and 2000 L of water. A solution of a concentration 0.015 kg of salt…

A: Use of differential equation.

Q: Zn(s) + NO3(aq) Zn(OH)4² (aq) + NH3(aq) (aq) * NH,

A: we need to balance the given equation in acidic medium

Q: Primary amine NH–CH3 I H3C-CH-CH3 NH₂ I H3C-CH₂-CH-CH₂-CH-CH3 -H-CH₂- CH3 H3C-N-CH3 I H3C-CH₂-CH-CH3…

A: Given,  The primary, secondary and tertiary amines from the list of compounds are:

Q: Calculate the pH after the addition of 60.0 mL of 0.3 M NaOH to 50.0 mL of 0.20 M LIN O 10.46 11.86…

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Q: Use the chemical equation to find the answers.  H2CO3 → H2O + CO2 Identify how many oxygen atoms…

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Q: Write each of the following numbers in standard scientific notation. a. 1/1033 b. 1/105 c. 1/10-7 d.…

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Q: OH xohn POCI3, pyridine HBr, heat OH OH H₂SO4, heat 1) NaH 2) Ph Br

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Q: Identify the structure of the important fragments. Show the arrow pushing mechanism to form the…

A: Show the arrow pushing mechanism to form the significant fragments.

Q: 0.8 C 0₂ Reactants atom ↑ 8 CO₂ Products

A: C + O2 ----> CO2 in the above equation 1. we can easily find carbon and oxygen atoms.

Q: Which one of these is not an agriculture analytics usecase? Select one: a.Intelligent monitoring &…

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Q: if the KI dissome in water to make Solution The Salut 11 density of and The Mass of KI дрения 1209…

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Q: .When 198 Joules of heat are added to 5 grams of methane gas at -10°C, the temperature of the…

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Q: 10 Challenge, Problem 10: A certain sample of H₂ gas (n = 3.2 mol) at a pressure of 4.98 atm, a…

A: Ideal gas equation: The temperature, pressure, volume, and mole of the gas are related by the ideal…

Q: Fill in the name and empirical formula of each ionic compound that could be formed from the ions in…

A: Write name and empirical formula of the given ions---

Q: For the reaction below, Kc = 4.60 × 106. Note Kc is sometimes called K. What is the equilibrium…

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Q: Q1. What are the similarities in the chemical structure of the compounds? Are the compounds made up…

A: Answer 1. Glycerol - Mostly known as glycerine is a poly-alcohol compound that is colorless,…

Q: Decide which physical states are indicated in the following statement.  Choose all that apply.…

A: We need to determine which of the given states allows free movement of particles

Q: Analysis of a compound showed that it contained 40.66 % C and 8.53 % H, 23.72 % N and rest is…

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Q: IBU NAP O O 1 2 Fill out the table below for 2 compounds (please indicate coupling constant for…

A: Let’s first identify how many non-equivalent protons are there in these two given molecules.…

Q: 1. Write the complete ground state electron configuration for each element or ion. a) Mo b) K

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Q: Description: What is the IUPAC name for the following compound?img.…... Part A What is the 11BAC…

A: While giving IUPAC name to an organic compound, we follow the below rules:

Q: Using the Faraday constant 3/5 Suppose a current of 60. A flows through a copper wire for 35.0…

A: Using current and time we need to calculate the moles of electrons

Q: 4. Ten pounds of KCIO3 is completely decomposed and the Oxygen evolved collected over water at 80F.…

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Q: Cu   +   8HNO3  --> 3 Cu(NO3)2    +  2 NO   +  4  H2O In the above equation how many moles of water…

A: Given  Mass of HNO3 = 197.1 g Number of moles of water = ?

Q: Q1/Assuming that carbonated water contains only CO₂ (1) and H₂O (2), determine the composition of…

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Q: 4 Problem 4: If 20 L of nitrogen gas at 5 atm is compressed to 4.2 atm at constant temperature. What…

A: Boyle's Law :     Boyle's law states that at a fixed temperature, the volume of gas is inversely…

Q: What subclass of enzyme catalyses the transfer of phosphate to a substrate?

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Q: Half a mole of an ideal gas expands isothermally and reversibly at 298.15 K from a volume of 10 L to…

A: The change in entropy (∆S) of an ideal gas is related to heat exchanged (q) in a process at constant…

Q: For CHCl3(g), Cp = 7.05 + 35.60 x 10-³T - 216.9 x 10-7T² cal mole-1 K-1. Assuming this gas to be…

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Q: Classify each formula or structure as a carboxylic acid, an ester, or an amide. Carboxylic acid…

A: We have to classify the given structures on the basis of there functional group.  For it, we must…

Q: A-3.3. The aluminum block weighing 1.25 kg was cooled under constant pressure from the temperature…

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Q: 1) 27 L of CO2 is initially collected at 299K. After, the temperature is increased to 323 K.…

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Q: The value of Ka for acetylsalicylic acid (aspirin), HC9H704, is 3.00×10-4. Write the equation for…

A: The equilibrium constant of a chemical reaction is the value of its reaction quotient at chemical…

Q: Balance the following redox reactions. 1. MnO4 (aq) + NO2 (aq) → MnO2(s) + NO3(aq) H₂S(aq) + Cr2O7²…

A: The given redox reaction is as follows: A redox reaction is balanced by balancing the mass and…

Q: Given the parent compound, draw the mass spectrum fragment that is observed at m/z 91. Include any…

A: Mass spectrometry measures the mass of the compound and its fragments in the form of a cation. The…

Q: (aq) Zn(OH)4² (aq) + NH3(aq)

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Q: Question 3 Circle the best answer: a. Dissolving O in Cu: a) O: solvent, Cu: solute b) O: solute,…

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Q: Calculate the theoretical potential of the following cells. (In each case assume that activities are…

A: The cell is as follows: Saturated Ag-AgCl reference || Ti³+ (0.0850 M), Ti2+ (0.0450 M) | Pt Cell…

Q: 20) cis-4-bromo, 3-methyl, 2-pentene undergoes chlorination. Name final product.

A: 20) IUPAC name of product formed is :- 2-bromo-3,4-dichloro-3-methylpentane

Q: Write the correct answer with 1 place after the decimal point.   What is the molecular mass of…

A: Given, molecular mass of  S2N5O5 = ? Note:  Atomic mass of S = 32.06 g/mol Atomic mass of N = 14.01…

Q: * 3. A certain element ends its electron configuration on the p sublevel. What is the shape of its…

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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.