How many grams of carbon are in 1.13 x 1025 molecules of (carbon dixide) CO2 ?

Q: 2. Draw the complete molecular orbital diagram (energy diagram like you have seen in class) for…

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Q: Write the structural formula of the following ALKANES: (Not skeletal formula) 1.…

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Q: Iculate the atomic weight of Magnesium given the mass and natural occurrence of each tope. Express…

A: We have given the masses and isotopic abundance of three isotopes of magnesium. Isotopes of an…

Q: The pure vapour pressure of benzene (C6H6) is 745 torr; the pure vapour  pressure to toluene(C7H8)…

A: Given: The pure vapour pressure of benzene (C6H6) = 745 torr The pure vapour  pressure to…

Q: What is the molar concentration of a weak acid [HA], if the ka = 6.34 x 105 and the [H*] = 9.77 x…

A: Dissociation of weak acid :   HA  ⇌H+ + A-

Q: the structure below represents 1.) a face centered cubic unit cell 2.) a body centered cubic unit…

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Q: After 1.60 mol of NH3 gas is placed in a 1600-cm3 box at 25 Celcius, the box is heated to 500 K. At…

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Q: What is the pH of a 0.02M solution of HCl? What would the H+ concentration be? What would the OH-…

A: HCl is a strong acid  and it completely dissociates into H+ and Cl- ions. The pH of a solution is…

Q: 'H-NMR exercises A. Number of signals, integration, and multiplicity 1. Determine the number of…

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Q: Draw the skeletal structure of butan-1-amine from the condensed formula (shown below).…

A: Condensed formula gives the information about the sequence in which atoms are bonded , in organic…

Q: 14 If you are making 100 mL of a 0.1 M HEPES buffer starting from HEPES in the basic form, is it…

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Q: Complete the following table for an isotopically labeled atom or ion: Complete the following table…

A: Given incomplete table is :  Complete the given table ?  Number of protons (p) = Atomic number (Z)…

Q: How many grams of MgBr2 are in 5.61 x 1022 molecules of magnesium bromide (MgBr2)? Mg = 24.01 g/mol…

A: To calctulate the grams of magnesium bromide in given number of molecules, we would use Avogadro's…

Q: Give the product(s) formed when the following species react together: Interactive 3D display mode…

A: If acidic proton present then first of all base NH2- can abstract most acidic proton .

Q: Write the structural formula of the following ALKENES: (NOT SKELETAL FORMULA) 1,2-butadiene…

A: Write the structural formula of the following ALKENES: (NOT SKELETAL FORMULA)   1,2-butadiene

Q: Curved arrows are used to illustrate the flow of electrons. Follow the curved arrows and draw the…

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Q: How many liters of ammonia will be produced from 15 grams of hydrogen?

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

Q: h ²d e ³a cid H

A: Organic reactions are those in which organic reactant react to form organic products. Pericyclic…

Q: A sample of 65 mg of a perfect gas at 0.800 bar has its volume doubled and its absolute temperature…

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Q: Anhydrous, primary standard sodium thiosulfate can be prepared from the pentahydrate, Na2S2O3.5H2O.…

A: Answer: Molar concentration of solute in solution is: Molarity=Mass of solute×1000Molar mass of…

Q: b Complete the following table for an isotopically-labelled atom or ion: Group of Element Group 2A…

A: Given :-  ---------------------------------------

Q: vanadium crystalizes in a body centered cubic structure and has an atomic radius of 131 pm.…

A: The density of the vanadium crystal is given by: density of the vanadium is = mass of vanadiumvolume…

Q: 2. The volume of a block-shaped object can be calculated using the formula: volume = length X width…

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Q: Classify each chemical compound: compound Mg (MnO4)2 H₂C₂O4 BaF₂ type of compound ionic O ionic…

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Q: Consider a solution made by mixing 500.0 mL of 4.0M NH3​ and 500.0mL of 0.40MAgNO3​.Ag+ reacts with…

A: GIVEN 500ml of 4.0M NH3 = 2 moles 500ml of 0.4 AgNO3= 0.2 moles

Q: A cumulene has double bonds directly connected to each other. Identify all the atoms that must lie…

A: Given structure of cumulene is :  In cu Identify all the atoms that must lies in the same plane ?…

Q: III. Write the name of the following compounds.

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Q: What is the mass in grams of 0.485 moles of barium (Ba)? Enter your answer in decimal form with…

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Q: is an impossible formula.  If it were real, determine the molar mass of: Fe2S4O5 Remember that you…

A: Given -> Atomic mass of Fe = 55.85 g/mole Atomic mass of S = 32.06 g/mole  Atomic mass of O =…

Q: How many neon atoms are contained in (6.89x10^2) grams of neon? Use at least two decimal places for…

A: Given -> Weight of neon = 6.89 × 102 gram

Q: 85.0-kg person is exposed to 419 rad of radiation. How many joules did this person absorb?

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Q: What is the correct assignment of the names of the following heterocycles?

A: Heterocyclic Compounds are ring compounds having atoms of two or more elements in a ring beside…

Q: 0.0001 0.8859 140 22.1214 What is the molarity of the fourth solution?

A: GIVEN Molarity Molarity (M) is the amount of a substance in a certain volume of solution. It is also…

Q: 25. Which of the following choices is an example on anthropogenic complexing agents: A) Humic and…

A: Anthropogenic Complexing agents improve cleaning efficiency by inactivating water hardness.

Q: A person on a diet loses 1.57 kg in a week. How many micrograms per second (μg/s) are lost?

A: Weight lost by the person in 7 days is = 1.57 kg Weight lost by the person in micrograms per second…

Q: For a certain hydrocarbon gas, 20.0 mg exerts a pressure of 24.7 torr in a 500-cm3 vessel at 25…

A: Ideal gas equation is  PV =nRT  P = pressure of hydrocarbon gas = 24.7 torr = 0.0325 atm  V = volume…

Q: 1. What is the density of a solid if a sample occupying a volume of 16.53 mL wei 85.4 g? 2. Why does…

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Q: II. Write the chemical formula and name of the following compounds. Ion Symbol Compound made of 1.…

A: "To get remaining sub-parts solved please repost the complete question and mention the sub-parts to…

Q: Calculations and Multiple Choice. 14. Consider the following reaction at constant P. Use determine…

A: Spontaneous Process- Chemical or biological events that happen on their own, unaffected by…

Q: (b) In a reaction A+B Product, if concentration of A is doubled the reaction rate doubles but if the…

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Q: You want to prepare a 0.02 N hydrochloric acid standard to use as the titrant in a titration.…

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Q: D.IComplete the following table of haloalkanes D.1- Chloromethane IExpanded structural formula D.2-…

A: Please find your solution below : Haloalkanes are the hydrocarbons comprising of an alkane in which…

Q: When 73.6 g of glycine C2H5NO2 are dissolved in 1250. g of a certain mystery liquid X, the freezing…

A: Answer: Depression in freezing point of a solution containing a non-volatile solute is:…

Q: An average gas fireplace uses about 200 gallons (760,000 cm3) of propane gas per year. Assume that…

A: We would use ideal gas equation to calculate the mass of propane used .

Q: 1.) A researcher claims that an ancient scroll originated from Greek scholars in about 500 B.C. Its…

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

Q: How is the term insoluble: Represent and quantify chemical reactions at the atomic level?

A: A solution contains two parts – solutes and solvents. Solute is the substance being dissolved and…

Q: 2. In an FCC structure, the atoms are found on the corners of the cubic unit cell in the centers of…

A: It is given a FCC structure .we have to calculate the relation between the edge length and radius,…

Q: O · Η HIN 0 N name the non-alkane functional groups p

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Q: II. Calculate the atomic weight of each element given the mass and natural occurrence of each…

A: We have given the masses and isotopic abundance of three isotopes of magnesium. Isotopes of an…

Q: A pycnometer is a glass flask with a tight fitting glass stopper that can be used to determine the…

A: Mass of clean pycnometer = 25.151 g Mass of clean pycnometer plus water = 42.481 g  Initial mass of…

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.