How many moles are in 5.83 g of the compound Happyase if it has a molar mass of 40.24 g/mol? (enter only your numeric answer, do not use scientific notation, include 2 decimal points in your answer)

Q: What is the oxidation number of the carbon indicated with the letter A? Question 12 A What is the…

A: Carbon atom indicated with letter A is carbonyl carbon of carboxylic acid. One oxygen atom is…

Q: Bases are considered to be corrosive. Which of the following are bases? (More than one answer can be…

A: Answer: Among the given compound Ethylenediamine (C2H2(NH2))2 , Acetone, Diethyl ether, Nickel(2)…

Q: Solid aluminum (Al) and oxygen (O₂) gas react to form solid aluminum oxide (Al2O3). Suppose you have…

A: Balanced chemical equation: 4Al (s)  +   3O2 (g)  ------> 2Al2O3 (s) Number of mol of Al = 4/3 x…

Q: A. This compound loses a fragment very easily to form the peak at 70 m/z. What has been lost?…

A: We need to calculate: A. M+ peak at 88 m/z. B. The compound loses a fragment very easily to form the…

Q: Which of the following substrates is most reactive in a nucleophilic substitution reaction with…

A: Answer:- This question is answered by using the simple concept of chemical reactions of alkyl halide…

Q: 16. Which of the following statements is FALSE regarding the PO anion? A) There are no lone…

A: -> Phosphorus has valence electron 5 . -> average formal charge = total charge ÷ no. Of atom…

Q: ➤ calculate the chemical factor: (each 1 mL of 1 N sulphuric acid solution is equivalent to 0.02916…

A: In this back titration of magnesium hydroxide. first magnesium hydroxide is dissolved in excess of 1…

Q: Draw all the possible resonance structures for the chromate ion. How many resonance structures can…

A: We need to draw all the possible resonance structures for the chromate ion. Chromate ion is CrO42-

Q: Calculate ΔH° (in kJ) for the decomposition process/reaction: Co3O4(s)  --> 3Co(s) + 2O2(g) from the…

A: Given intermediate reaction,  Co(s) + ½O2(g)  --> CoO(s)  ------(1)             ΔH° = -237.9 kJ…

Q: Given 50 mL of NaOH solution with a pH of 12.5. It is titrated with 0.2 M of phosphoric Acid…

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Q: 9. Draw the mechanism for the given reaction. CI xa CH3OH

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Q: (Show your work) Some damage to the ozone layer of the upper atmosphere might involve the reaction…

A: Since the reaction follows second order kinetics, i.e. the rate of the reaction will be proportional…

Q: The heat of combustion (AH) for an unknown hydrocarbon is -8.21 kJ/mol. If 0.248 mol of the…

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Q: Ammonium perchlorate (NH4CIO4) is a powerful solid rocket fuel, used in the Space Shuttle boosters.…

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Q: Calculate the final concentration of ions (in mol/L) in a solution in which 1.08g of NaCl…

A: Given -> Weight of NaCl = 1.08 gm  Weight of BaCl2 = 9.21 gm  Molar mass of NaCl = 58.44 g/mole…

Q: 10. Draw the product/s. a. NaSCH 3 b. IG CH3SH

A: Strong nucleophile favours SN2 reaction while weak nucleophile SN1 reaction.

Q: How many milliliters of a 0.22 M sucrose solution contain 0.750 g sucroseZ?

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Q: what does 2.5M mean? A. there are 2.5 moles of solute B. there are 2.5 moles of solute per 100 mL…

A: we have to explain what does 2.5 M mean

Q: Which of the following shows the correct ion concentration if 1.0 mol of the compound listed is…

A: To solve this problem we have to calculate the concentration of ions . Since we know that…

Q: It takes 157. kJ/mol to break a nitrogen-oxygen single bond. Calculate the maximum wavelength of…

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Q: 4. What are the IUPAC names of the compound shown below? A) B) D) CH3 I O || CH3-CH-CH₂-C-OH سلہ…

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Q: Ca(s) + 2HCl(aq) --> CaCl2(aq) + H2(g) Using the limiting reactant concept, how many moles of…

A: Since, Limiting reactant are those species which is present in less amount (in terms of mol) and…

Q: What is the addition with acid organic reaction? I have written Alkenes + halogen acids ——->…

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Q: 13. Which one of the following statements is FALSE A) 02- is larger than F. B) C) The ground state…

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Q: Which of the following is the acceptable structure for (R)-5-bromohept-2-yne? Br 01 Oll O III OIV OV…

A: Rule of IUPAC-1) Longest chain as parent chain.2) Numbering start from those side where more prior…

Q: Charles's law states that the volume of a gas is directly related to the absolute temperature when…

A: For a definite amount of gas, at constant pressure, the volume of the gas increases with an increase…

Q: uestion 9 of 14 Macmillan Learning Draw the product of the oxidation of the given aldehyde. Include…

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Q: Given the reaction mechanism and the quantities listed below, find the limiting reagent and the…

A: Limiting agent:- Limiting agents are those which totally convert into a product and determine the…

Q: A piece of unknown substance weighs 56.6 g and requires 3.56 kJ to increase its temperature from 312…

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Q: 10. Which of the following complexes can exist as diastereiisomers a) [Cr(NH3)2C14] c) [CONH3),…

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Q: Write a balanced half-reaction for the oxidation of bismuth ion (Bi³+) to bismuth oxide ion (BiO3)…

A: Since, In redox reaction, Oxidation and reduction reaction both takes place simultaneously. In…

Q: In hydration of alkenes, Is hyohoboration always give a non-Markovonikov product? Is oxymercuration…

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Q: When a 4.00 g sample of KCl is dissolved in water in a calorimeter that has a total heat capacity of…

A: When any salt is dissolved in the water there happens a release or absorption of heat that we can…

Q: What is the ¹H NMR splitting pattern of the indicated hydrogen? doublet O singlet

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Q: 9. Calculate the longest wavelength (in um) of light emitted by an excited hydrogen atom in which…

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Q: 20. Which of the following statements about hybridization is FALSE? A) The ideal angle between…

A: Ideal bond angle in sp3 hybridised orbitals is 109.5° All the s-orbital are spherical in shape.…

Q: 5. (a) Draw the product/s of the reaction; (b) Indicate the mechanism: changed from acetone to…

A: Here we have to predict the product of the reaction,  mechanism  and effect of solvent  in the…

Q: oxide in addition to gaseous carbon dioxide. What was die weight of 6g sample of impure calcium…

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Q: At what pH would you expect this ionic species to be the predominant one? H3N- -CH- 1 4 CH₂ OH 7 11

A: The given molecule is Aspartic acid, an acidic amino acid.  The acidic groups present in the amino…

Q: Draw the condensed structure of the organic molecule that produces sodium propanoate when reacted…

A: Carboxylic acid reacts with NaOH to give up Hydrogen ion and form sodium carboxylate. Alcohol and…

Q: (Show your work) The half-life of 235U is equal to 7.1 x 108 year. What is the time constant in yr?

A: Uranium is a radioactive metal which constantly decay by alpha emission.  Since all the radioactive…

Q: Given the reactions, X(s) + O₂(g) → XO(s) - XCO3(s)→ XO(s) + CO₂(g) what is AH for this reaction? AH…

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Q: How many signals would be present in the ¹HNMR? NaCl

A: we have to determine the number of signals for the 1-HNMR of NaCl

Q: A researcher studying the nutritional value of a new candy places a 4.90 g sample of the candy…

A: Given: The mass of the candy burned = 4.90 g The rise in temperature = 2.61 oC The heat capacity of…

Q: Before the development of reliable batteries, miners lamps burned  acetylene ( C2H2 26.04g/mol)…

A: Answer: This question is based on stoichiometric calculation where we have to convert moles of C2H2…

Q: The specific heat of a certain type of cooking oil is 1.75 J/(g-°C). How much heat energy is needed…

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Q: 17. Place the following molecules in increasing C-N bond length: HƠN, CHÍNH, CHÍNH A) CHÍNH-CHÍNH B)…

A: The organic compounds are HCN, CH3NH2, CH2NH,  Compare bond C-N Bond lengths in the above molecules

Q: Solid phosphorus (P) and chlorine (Cl₂) gas react to form solid phosphorus pentachloride (PCI).…

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Q: A 9.00L tank at 8.92°C is filled with 12.5g of dinitrogen difluoride gas and 13.5g of sulfur…

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Q: CO(g) + Cl₂(g) = COCl₂(g) Predict if the reaction will shift towards the left, right, or remains…

A: Here we are required to predict the equilibrium direction on changing the reaction condition.

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.