A 0.850-mole sample of nitrous oxide, a gas used as an anesthetic by dentists, has a volume of 20.46 L at 123°C and 1.35 atm. What would be its volume at 468°C and 1.35 atm? O77.9 19.0 38.3 O 10.9

Q: How many moles of calcium hydroxide and sodium carbonate must be added to soften 1000L of water if…

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Q: Uranium -238 decays in a series of steps to Pb-206. When the material is very old, one can treat the…

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Q: A laser with an energy of 2.65 kJ has a photon wavelength of 1300. nm. How many photons does this…

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Q: Advanced Electron Pushing!! Provide a detailed, stepwise mechanism for the following…

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Q: Choose the correct starting material for the reaction sequence below. 1) NaCN 2) H₂0 Ob O a Od H b.…

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Q: How do i interpret the radial distribution function?

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Q: 1. KMnO4 NaOH, H₂O, 2. H₂O* 1. KMnO4 NaOH, H₂O, A 2. H₂O* 1. KMnO4 NaOH, H₂O, A 2. H₂O* 1. NaOH, ₂…

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Q: 1. For the following group of elements: Beryllium (Be), Aluminum (Al), Hydrogen (H) a. Draw the Bohr…

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Q: Q11. calculate the instantaneous rate of appearance of oxygen gas at 250 s during the decomposition…

A: Instantanous rate is the rate of reactionat a particular moment of time or at particular instant .It…

Q: An arctic weather balloon is filled with 28.6 L of helium gas inside a prep shed. The temperature…

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Q: What is the rate constant at 446.66°C for the reaction below if the rate constant is 1.30 M1s1 at…

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Q: What effect would the following have on the value of your Ksp value (Increase, decrease, or no…

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Q: A common refrigerant (Freon-12, molar mass 120.91 g/mol) is alternately vaporized in tubes inside a…

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Q: 14. (a) Identify the acetal and the ketal group in the following disaccharide. (b) Decide whether…

A: According to the company guidelines, we have to answer only the first question. So, please kindly…

Q: 1Compound 1 has molecular formula C7H16. It shows three signals in the 1H-NMR spectrum, one at 0.85…

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Q: Write a balanced net ionic equation to show why the solubility of CaCO3 (s) increases in the…

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Q: Calculate the amount of: a) Glucose, in grams, that must be dissolved in water to obtain 75 ml of a…

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Q: What is the major neutral organic product for the following sequence?

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Q: Provide the correct systematic name for the compound shown here. H₂C- NH₂ CH3 4

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Q: A geochemist heats a limestone sample and collect the CO₂ released in an evacuated flask attached to…

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Q: What is the molarity of a solution that was prepared by dissolving 14.2g of NaNO3 (molar mass = 85.9…

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Q: Which of the following buffers will best prevent changes in pH when 100 μl of 1.0 M HCl is added to…

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Q: Consider a solution of Na₂A for which F = 0.050 mol L-¹, K₂,1 = 4.70 x 10-³ and K₁,2 = 1.80 x 10-¹0,…

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Q: 43. What is the pH of a solution with [H3O+] = 3.25 x 10- 6 M? A) 5.488 B) 3.78 C) 5.49 D) 4.951 E)…

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Q: Sulfur reacts with oxygen to form sulfur tri oxide, according to the   Following equation: A2 C1 2S…

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Q: Question 10 The reaction between Iron and oxygen to form Iron (III) oxide is written as: Fe (s) + O…

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Q: (a) (C) 乂 OH (b) 台 H 8.6 (d)

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Q: What volume of a 0.1000 M hydroiodic acid solution is needed to neutralize 25.0 mL of a 0.350 M…

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Q: Which product(s) has the correct relative stereochemistry for the Diels-Alder reaction below? both A…

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Q: What is the relationship between the two molecules shown below?

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Q: Which reagent below would be used to convert the following alkyne to the alkene shown? محمو NaNH2,…

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Q: Identify the oxidation state of the underlined element: H₂O Fe₂O3 H3CCH3 CO₂H

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Q: In your shown work, draw all the resonance structures for the ion: NO3. Now answer the following…

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Q: D lai 21 AICI 3 A

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Q: Identify and draw the structure of the important peaks in the MS spectral data of C8H8O2 given…

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Q: What is the relationship between the two molecules shown be HO HO- H- CH₂OH C=O -H -H -ОН CH₂OH…

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Q: 4. Calculate the mass of sodium acetate that must be added to 1.50 L of a 0.456 M acetic acid (Ka =…

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Q: The Ka of formic acid (HCO2H) is 1.8x10-4. What would the pH of a solution containing equal…

A: Given→ Ka of formic acid (HCO2H) = 1.8×10-4

Q: Convert the mass 0.0465 kg of sodium chloride to grams. O 465 g O 4.65 10-3 g O 4.65 10 2 g O46.5 g

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Q: HO 15. (a) Identify the glycosidic bond in the following disaccharide. (b) Decide whether the…

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Q: QUESTION 9 Which of the following compounds contains only an ionic bond? O SO 2 OKCI OH2 O NH 3

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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.