Consider three 1.0 L flasks labeled A, B, and C filled with the gases NO, NO2, and N2O, respectively, each at STP. In which flask is there one mole of gas?

Q: Write true if the statement is true, write false if the statement is false. The C-O-C bonds in…

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Q: Given the reaction,         Fe + MnO 4 - → FeO 4 -2 + Mn +4   a)  How many moles of the…

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Q: For the molecule CH2O (c is central) , draw the 3D Lewis structure then, give the electronic…

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Q: 38. A potassium chloride (KCI) solution containing 30g/100g of water at 10°C is warmed to 40°C. What…

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Q: What is the molar volume of h2 based on the data

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Q: 3 0 0 2 :0

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Q: True or False. Support your answers

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Q: TRUE OR FALSE 2. The turbidity in the Lucas test is attributed to the resulting alkyl halide. 3.…

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Q: CHOOSE THE LETTER OF THE CORRECT ANSWER.   The illustrated reaction mechanism is considered…

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Q: Given the reaction: Hg2+  + Cd   ⇔  Cd2+  + Hg

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Q: TRUE OR FALSE 15.In Fehling’s test, the theoretical product after an aldehyde is mixed with…

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Q: An anion exchanger is usually negative charged, True or Falde?

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Q: А. B. C. D. HO w.. H3C CH3 CH₂ H CH3 CH3 CH3 CH3 HC3 CH3 HC3 CH3 Ž HC3 CH3 OH OH om CH3

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Q: What is the IUPAC name of the illustrated molecule? HO Br O2-bromo-5-hydroxypent-3-ene…

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Q: Arrange the following compounds according to decreasing Amax for it to * transition observed in…

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Q: For the molecule GeO2, draw the 3D Lewis structure then, give the electronic geometry (EG), the…

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Q: What is the concentration (in mol L) of SO4² ions in the final solution?

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Q: н Н I. + Br н -H Н Н Н н Н Н II. HBr н Br н н Н H H Н 8+ Br Н H 8+ III. Н -Н Н H Н IV. Н Н

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Q: Which substance CANNOT decolorize bromine water?

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Q: Consider this reaction          Fe + MnO4  - → FeO4  -2 + Mn  +4 What is the correct reduction…

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Q: 0:- What is the Value of Ecell (inv) for the following unbalanced reaction 2+ Mg²a + ALLS] Mg(s) +…

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Q: 12. Predict the products of the following re HBr a. -OH conc. H₂SO4 heat b. H₂C OH Br₂/ heat

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Q: The physical properties of the substances are influenced by intermolecular forces of attraction.…

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Q: Draw structural for n-octane. Draw the molecules by placing atoms on the grid and connecting them…

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Q: Recall what orbitals mobile electrons travel through and how these orbitals are arranged.

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Q: What is the main functional group of the organic molecule? Carbonyl functional group Aldehyde…

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Q: 6. Calculate the amount of heat released when 1.26 x 104 grams of ammonia NH3 are produced according…

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Q: 36. The ring-opening of cyclic ethers happens through cleavage by suitable nucleophiles. Which among…

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Q: Synthesize the compound below from benzene. COOH NO₂

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Q: Given the chemical reaction N₂ + 3H₂ → 2NH3 Determine the largest mass of NH3 that could be produced…

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Q: 21. A 520.0-mL sample of a 0.875 M solution is left on a hot plate overnight; the following morning…

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Q: 1. What is/are the applications of the following adsorption isotherm models and their limitations?…

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Q: One way to analyze for the amount of phosphorus in a rock is to precipitate the phosphorus as…

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Q: The infrared absorption spectrum of 12C14N has its strongest band at 2500 cm-1 wavenumber. Calculate…

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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.