How many moles of sulfur are needed to combine with 45 mg of oxygen to form sulfuric acid (H2SO4) ? How many molecules of the acid would be graduated?

Q: Consider the following reaction: 1. 2 N2O5 (g) → 4 NO, (g) + O2 (g) The initial concentration of N¿O...

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Q: How could you use 'H NMR to distinguish between the following pair of compounds? Explain your answer...

A: Spectroscopy can be used for distinguishing  the structures of atoms and molecules from each other. 

Q: Arrange the following electromagnetic radiation sources in order of increasing frequency. (A) a red ...

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Q: Q3. Draw the d-orbital splitting diagrams of the central metal ions in a. Heptacyanoosmate(IV) b. Ir...

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Q: What is the molarity of Na+ in a solution that contains 75.9 ppm of Na2CO3? (MM=105.99 g/mol)   7.1...

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Q: 3B MW 136 cler etuen late wwENERS C . 3H 4H 1H P N Cat 1 NM WLI L

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Q: 1. The [H30"], in M, of 10.00 mL of 0.100 M NaOH after adding 10.00 mL of indicator solution. To ent...

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Q: Calculate the degree of unsaturation. Assign the relevant peaks in the IR spectrum. Assign the peaks...

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Q: Current Attempt in Progress A 2.05 g sample of an unknown compound contains H, S, and O. If the comp...

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Q: Wine goes bad soon after opening because the ethanol CH3CH2OH dissolved in it reacts with oxygen O...

A: We have to predict the moles of acetic acid Produced.  

Q: A 0.4017 g sample of nicotine was analyzed and found to consist of 0.2974 g C, 0.03494 g H, and 0.06...

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Q: describe the organic compounds' ionization and the inorganic compounds' ionization

A: Answer is given. :  

Q: U Rounding To The N.. O (46) AFRICAN HOM. E Kiasha Savage -Cla. G english to french- 1/10 A boron at...

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Q: O A. 1,1-dimethyl-1,4-pentadiene O B. 2-methyl-2,5-hexadiene O.5,5-dimethyl-1,4-pentadiene O D.5-met...

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Q: For electromagnetic radiation transmitted through a vacuum, state whether each of the following prop...

A: For electromagnetic radiation, the formula of energy is E = hν, where h is the Plank's constant and ...

Q: Given the chemical equation: 2H₂ + O₂ → 2H₂O, how many moles of H₂O is produced to balance the equat...

A: When hydrogen (H2) gas burns in oxygen (O2)  water(H2O) is produced. 

Q: Which will have the highest Rf value from a normal phase TLC? O chlorophyll O B-carotene O Pheophyti...

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Q: Concentrated sodium hydroxide (39.997 g/mol) is 50.% by mass and has a density of 1.51 g/mL. What is...

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Q: When the following equation is balanced, the coefficient of H,0 is Cа (9) + H,0 () > Са(ОН), (аq) + ...

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Q: the Exercises on Thermochemical Equations Objective: Perform calculations involving thermochemical e...

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Q: Using the equation below, calculate the flux of molecules to the surface at a base pressure of 5 x 1...

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Q: An unknown compound contains nickel, phosphorus, and oxygen. When analyzed, a 100.0 g sample was fou...

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Q: Draw the major product of this reaction. Ignore inorganic byproducts. H. 1. CrO3, H2SO4 2. Neutraliz...

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Q: Encircle and identify the functional groups of the following organic compounds. 1. но 2. 3. Coumarin...

A: A functional group is a substituent responsible for distinctive chemical properties and chemical rea...

Q: hat is (are) the product(s) of the following reaction? 1. KMNO 2. H.О, Но- OH OH HO HO, HO, II IV Mu...

A: Alkaline addition of KMnO4 in cyclohexene produce cis diol.  This is called as syn addition

Q: The formula for a Ciprofloxacin otic drop is given in the literature as follows: Cirpofloxacin 1 g P...

A: So, Ciprofloxacin is required = 20 g.

Q: Determine of T/F. The ΔGo of a reaction is -5 kJ/mol at 25oC so the reaction is at equilibrium.

A: Given value of standard Gibbs free energy value is negative

Q: The standard enthalpy change for the following reaction is -851 kJ at 298 K. 2 Na(s) + O2(g) + H2(g...

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Q: 16.106 The atmospheric sulfur dioxide (SO,) concentration over a certain region is 0.12 ppm by volum...

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Q: If Jotaro Kujo measured the amount of current that passes through a sample to measure the amount of ...

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Q: systematic name.

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Q: Give the following information for the encircled element in the molecules as shown below 9) OH OH a)...

A: The Circled atom is a carbon atom.  And carbon have four valancy electrons. 

Q: Give the following information for the encircled element in the molecules as shown below 10) CH3 a) ...

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Q: For calibration curve of true conc. 8,5, 6, 14, 40 and Ing/ml, find out the dynamic range and LLOQ, ...

A: Given that, for calibration curve of true concentration 8, 5, 6, 14, 40 and 1 ng/mL. We have to find...

Q: 1. For each of the following compounds Determine if a compound is chiral, achiral or meso. a. b. Mar...

A: Here we have to determine number of chiral carbon atoms , whether moecule is chira, achiral (meso) a...

Q: The balanced reaction for the combustion of ethane is shown in the table. You allow 3.2 mol of ethan...

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Q: Lewis dot

A: Lewis structure is the diagrammatic representation of the total number of valence electrons in an io...

Q: Which is the least polar? O 1-methylbutane O 1,4-butanediol O 1-butanol O 2-pentanol

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Q: What is the main importance for using change in free energy (ΔG) as the thermodynamic parameter for ...

A: Gibb's free energy is a state function and it is an extensive property. It is given mathematically a...

Q: Add the following: 1.23 + 0.42000 + 1.00923 Include the correct number of significant figures.

A: Rules for significant figure All non zero integer are significant Exact number have unlimited numbe...

Q: What do you call the type of analytical method that relies on the absolute stoichiometric equivalenc...

A: Oxidative Methods Explanation :   Step-1   The chemical nature of the species present in the unknown...

Q: What is the [H3O+] concentration in 0.245 M HNO2? Ka= 7.1x10^-4

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Q: 3) Add curved arrows to the following polar reactions to indicate the flow of electrons in each: (al...

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Q: 1. Compare and contrast the bonding present in each of the following: 02, CO, and MgO. Identify the ...

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Q: This is the laboratory apparatus used for liquid-liquid extraction. Florence flask Volumetric flask ...

A: For liquid liquid extraction is extraction of a particular compund from a solution with the help of ...

Q: E2C.8(b) Estimate AH®(750 K) for the reaction N,(g) + H,(g) → NH,(g) from the listed value of the st...

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Q: 1. Water is a polar molecule and has a very unique structure. A. What is a polar molecule? B. Draw o...

A: Here we have to define polar molecule and to show positive and negative region of water molecule. 

Q: Give the following information for the encircled element in the molecules as shown below 5) |CH3CH2C...

A: a) Nitrogen has 5 valence electrons b) Lewis dot structure of the given is in the handwritten : c) T...

Q: A 7.46 g sample of an aqueous solution of nitric acid contains an unknown amount of the acid. If 25....

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Q: How many moles of Zn are there in a sample of Zn that contains 3.14×1024 atoms? moles

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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.