Complete the following table. Mass of Sample 4.73 g C6H₂ Submit Answer g 9 Moles of Sample 0.220 mol H₂O Try Another Version Molecules in Sample 2.74 x 1022 molecules CO2 9 item attempts remaining Total Atoms in Sample

Q: Convert the following units s (state any assumptions you have to make to do the calculations): 380…

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Q: The half-equivalence point of a titration occurs half way to the equivalence point, where half of…

A: we have to calculate the pH at half equivalence point

Q: 3. Glucose (C6H12O6) is oxidized to produce carbon dioxide and water. 100 kg of glucose is oxidized.…

A: Limiting reagent: The reagent which is present in less amount. This reagent limit the reaction.…

Q: energy required to remove the second electron from a gaseous lithium in the gound state is 1.212 x…

A: Ionisation energy: The energy required to remove an electron from an isolated gaseous atom in its…

Q: A 77.0 mL77.0 mL portion of a 1.70 M1.70 M solution is diluted to a total volume of 258 mL.258 mL. A…

A: given data  A 77.0 mL or 1.70 M total volume = 258 ml after dilution  129 mL portion of that…

Q: Suppose a 250. mL flask is filled with 1.4 mol of H₂ and 0.90 mol of HCI. The following reaction…

A: Answer: Given system of chemical species will have the tendency to move in the direction where…

Q: Phosphorus pentachloride decomposes according to the chemical equation PCI, (g) PC1₂(g) + Cl₂(g) Ke…

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Q: Draw one isomer structure of cis-diethylcyclohexane.

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Q: Which reaction would produce the following compound? 0 B + enantiomer II IV

A: This is a simple diels alder reaction.  Where diene and dienophile reacts togather to form an cyclic…

Q: 18. The table shown below lists the naturally occurring isotopes of element X. Use this data to…

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Q: How much solvent must be evaporated from Solution E for it to have the same molarity as Solution A?…

A: The molarity of a solution is the ratio between the number of moles of the compound to the solution…

Q: Consider the acid-base nature of the salt [C₂H5NH3]CIO, when it is dissolved in water. (1) What are…

A: Acid which can donate proton and base which can accept proton.  If weak acid and weak base are…

Q: Explain how to make one litre of a 3.50 molar sodium hydroxide solution.

A: This question is related to stoichiometry. In this question, it is asked to make one litre of 3.50…

Q: A volume of 500.0 mL of 0.170 M NaOH is added to 535 mL of 0.250 M weak acid (?a=3.06×10−5). What is…

A: Given data  The volume of NaOH solution = 500.0 mL = 0.5 L (1 L = 1000.0 mL) The Molarity of NaOH…

Q: Determine the number of atoms in 41.0 grams of vanadium, V. (The mass of one mole of vanadium is…

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Q: Mass of NaCN required (in grams) to make 120.0 mL of 0.4 M solution. (Do not write unit with the…

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Q: Write the balanced equation for the reaction of aqueous Pb(ClO3)2Pb(ClO3)2 with aqueous NaI.NaI.…

A: Dear student, we are authorised to solve only one question at a time. Please post rest of the…

Q: Explain why olive oil won't dissolve in water but an ionic compound like potassium iodide (KI)…

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Q: Reactants Products -469.15 +-486.34 -215-73-726-13 NaOH +CH3COOH →→→→NaCH₂CoO + H₂O* AH°…

A: The given reaction is represented as follows: NaOH+CH3COOH → CH3COO-Na++H2O ∆H0=[-1011.96--955.49]…

Q: How many moles of NO₂ would be required to produce 3.34 moles of HNO₃ in the presence of excess…

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Q: 2 PbSO,00 2 PbSO, +10₂ 2 NH, + 3 BED 1 Nilo +3 Hy

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Q: Do we need 405 J of work done on the system so its volume changes from 2.0 L to 6.0 L against a…

A: Work done on the system or by the system can be calculated on considering change in volume of gas.

Q: use the Nernst eqaution to determine the equilibrium potential (relative to SHE) for the oxygen…

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Q: Name two INHERENT possible sources of error and how they could theoretically have impacted PERCENT…

A: Inherent errors are caused by  uncontrollable variables, which can not be defined/eliminated. they…

Q: appropriate. H3C H₂CH₂C NC H NaOH NaOCH3

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Q: Rank the following compounds from most soluble in water to least. A) CH3OCH3 B) CH3CH2OH C)…

A: Water is a polar solvent and it can dissolve an ionic or polar covalent compound.

Q: estion 30 Draw the Lewis structure for PBr3 on a piece of paper then provide the following…

A: Question 29 )

Q: 13. In a certain chemical reaction, 7.29 g of compound A is added to 5.70 g of compound B. Once the…

A: Since you have asked multiple question we will solve the first question for you. If you want any…

Q: OH doc Ph A TBS. Ph H3O+ TBS. Ph 1. B 2. H₂O+ HO TBS. Ph TBAF с

A: Given data :

Q: A 1.133 g sample contains only vitamin C (C, HO) and sucralose (C,H,C1, Oy). When the sample is…

A: Firstly calculate the molar mass of vitamin C(C6H8O6) and Sucralose(C12H19Cl3O8),  Molar mass of…

Q: 1: НО CH₂OH ОН ОН Name the glycosidic bonds: CH₂OH ОН ОН ОН 2: 3. What two monosaccharides make up…

A: we have to determine the glyosidic bond in the given structures and write the name of…

Q: a. How many moles of carbon tetrachloride are present in 3.10 x 1022 molecules of this compound?…

A: 1 mole = 6.022×1023 (Avogadro's number)  The mass of one mole of molecules of a substance is called…

Q: Write the balanced dissociation equation for solid calcium phosphate in aqueous solution. If it does…

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Q: What is the pH of a 7.88x10-2 M aqueous solution of sodium acetate, NaCH3COO? pH =

A: given data sodium acetate =7.88*10^-2 M  find pH

Q: Sodium hydroxide is used extensively in acid-base titrations because it is a strong, inexpensive…

A: For neutralisation of 1mol of NaOH, 1mol of HCl is required. For such neutralisation reaction: M1V1…

Q: Calculate the energy cost for methyl-ethyl eclipsed in pentane using the following information.…

A: Here we have to calculate energy of me-et eclipsed in pentane if total energy of eclipsed…

Q: How can we find out how many nodes are present

A: Atom consists of sub atomic particles called electrons, protons, and electrons. In an atom, there is…

Q: calculate the evaporation rate initial temperature at 5 seconds = 26.326 degrees celcius…

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Q: How many moles of ions are in 1.75 mol of K₂SO4?

A: Given ionic compound is K2SO4.

Q: BACTROBAN ointment contains 2% w/w mupirocin. H ow many grams of a polyethylene glycol ointment base…

A: given data   2% w/w mupirocin weight = 22 g concentration = 5 mg/g

Q: Based on the activity series, which one of the reactions below will occur spontaneously? A. Fe(s) +…

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Q: Draw resonance structures for CO32-, showing the delocalization of charge using curved arrows.

A: we have to draw the resonance structures of CO32-

Q: Consider the acid-base nature of sodium nitrite, NaNO2, when it is dissolved in water. (1) What are…

A: The given solution of compound =  NaNO2  When it is dissolved in water : NaNO2 (aq) + H2O (l) ==>…

Q: Use the References to access important values if needed for this que Use the relationship between…

A: Given that H2Te is expected to be a stronger acid than the substance H2S. The given statement is…

Q: At a particular temperature a 2.00-L flask at equilibrium contains 5.10 x 10-4 moles of N₂, 2.50 x…

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Q: Use the nernst equation to determine equilibrium potential based on the reverse hydrogen electrode…

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Q: 3. Draw the structure of the DNA oligomer that would perfectly base-pair with the following sequence…

A: DNA has a double stranded structure and both the strands are complementary to each other.  For…

Q: It is not necessary to include states such as (aq) or (s). If a box is not needed leave it blank. If…

A: Strong acid + strong base = neutral salt  Strong acid + weak base = acidic salt  Weak acid + strong…

Q: Determine the molarity of 24.8 grams of CaCl2 in 300 mL of solution

A: Here, we have to find the molarity of 24.8 grams of CaCl2 in 300 mL of solution.

Q: = O ELECTRONIC STRUCTURE AND CHEMICAL BONDING Identifying carbon hybridization in simple organic…

A: Hybridization of carbon (C) in hydrocarbons: • Alkane -C-C- in this case all bonds are single and…

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.