What is the mass percent of a sample vinegar from the store shelf that has a total mass of 97.26 g and contains 1.93 g of acetic acid? Your Answer: Answer

Q: Starting from the wedge-and-dash structure below (sighting down the indicated bond). Rotate the back…

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Q: Draw a Lewis structure for the molecule below, showing all lone pairs. You may abbreviate any methyl…

A: Given formula of compound is : (CH3CH2CH2)2O Valence electrons of C = 4 Valence electrons of O = 6…

Q: Explain how Science and Technology affected the society and environment and vice-versa.

A: There are many scientifical inventions that have a bad effect on the environment later days. one of…

Q: red 3. A student performs a separation by TLC on a silica get plate that results in three spots. A…

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Q: What is the volume of 25.5 g of water in m3 ? Use the density of the water, 0.997 07g/mL. Note that…

A: Given: Mass of water = 25.5 g  Density of water = 0.997g/mL 1 mL = 1 cm31 cm = 10– 2 m Hence, 1 cm3…

Q: Balance the chemical equation below using the smallest possible whole number stoichiometric…

A: Recall the given equation,                      CH3CH24CH3 g  +  O2 g  →  CO2 g  +  H2O gWe have…

Q: What is the average mass of one carbon dioxide molecules in units of amu.

A: The average mass of a compound is the mass of one molecule of that compound. 1CO2 molecule has one…

Q: Identify if the mentioned events underwent either chemical or physical changes.

A: Physical Change is a change in which the physical properties of its substance such as size, state…

Q: 26: The solubility of AgCl in water will increase in which of the following cases? a) Adding some…

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Q: physical... Read the descriptions below of two substances and an experiment on each. Decide whether…

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Q: 1. Name and draw the isomers form from the given molecular formula. a. C₂H16 b. C₂H₂Br₂ 2. Draw the…

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Q: How many moles of water are there in 21.50 grams of water

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Q: How does decreasing the total energy of the system affect the stability of the pair of atoms in the…

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Q: Calculate the mass in grams of each sample. Express your answer using three significant figures.…

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Q: Atom A Atom F NH Atom E HO Atom B Atom D H N F CH3 Atom C molecule 1

A: Functional group is atom or group of atoms which has special properties.

Q: 1. 2. What is a mixture? What is a molecule? 3. What is an atom? 4. How are mixtures and molecules…

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Q: Which method or instrument do you think is best for discovering vulnerabilities? Why?

A: Vulnerability Vulnerability analyses are performed to guard against the risk of unauthorised access…

Q: Calculate the mass of vanadium(V) oxide (V2O5) that contains a trillion (1.00*10^12) vanadium atoms.

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Q: (you need a Consider a cell with following jonic Tud: [Na+] = 5M [K]= 135 mM [c]=10 tai-121

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Q: 3) What is the approximate pKa of the hydrogen indicated by the arrow below: A) -7 B) 0 C) 5 D) 10…

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Q: draw the structure and give the systematic name of a compound with molecular formula C5H12 that a.…

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Q: i. Provide a detailed, stepwise, and balanced mechanism that accounts for the observed product and…

A: As per the rules, only the first question can be answered. Please resubmit the question for the…

Q: Give the product of the following reactions: (a) α-d-allopyranose + excess acetic anhydride and…

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Q: draw the following compounds. 2-ethoxybutane and 3-aminohexane

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Q: Hg₂ Cl₂ (s) Hg2 (aq) + 2Cl(aq) = Ksp = 1.20 × 10–18 Determine the concentrations of Hg2+ and Cl¯ in…

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Q: 10. If the density of an object is 2.87 x 10-4 lbs/cubic Liter, what is its density in g/ml? 7. A…

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Q: 3. The following are abbreviated versions of the nucleophilic attack step in each mechanism from the…

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Q: • Draw the proper structures and the Lewis acid-base adduct for the following reactions. AlBr3 + NH3…

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Q: At -11.5 °C the concentration equilibrium constant K = 9.2 × 10 for a certain reaction. Here are…

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Q: Use the dropdowns to indicate whether each of the following statements is True or False. An element…

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Q: You have a stock of Rubisco at the concentration of 100 µg/mL. For your experiment you need 500 µL…

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Q: Calculate the mass of scheelite (CaWO4) that contains a million (1.000*10^6) oxygen atoms

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Q: K Draw all of the stereoisomers of octane-3,5-diol. Use a dash or wedge bond to indicate…

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Q: Q1: Find the molar conductivity (in S.cm².mol-¹) of a 0.00100 M solution of KCI if its conductivity…

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Q: What is the theoretical yield of water in grams if 6.3 grams of propane, C3H8, is burned?

A: Given -> Weight of propane = 6.3 gm

Q: One of the disadvantages of producing vinyl chloride from acetylene is the high cost of acetylene…

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Q: The loss of electrons results in the formation of Negative ions Negative nonmetals Positive…

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Q: How does decreasing the total energy of the system affect the stability of the pair of atoms in the…

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Q: What is the IUPAC name for this compound? H IIa CH3CH₂CH₂ C-N-CH3

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Q: Determine the molarity of a solution made by dissolving 13.8g of Sr(OH)2 in enough water to have a…

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Q: 7. Problem 3.1 Give IUPAC names for the following compounds: (c) CH3 CH3CH=CHCHCH=CHCHCH3 CH3 (d)…

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Q: Upload an image that you found useful to explain the concept of pKa (acid dissociation constant),…

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Q: (3) How will you prepare 500 ml of 0.750 M citrate buffer with pH of 4.25 from solid citric acid…

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Q: Consider the following thermochemical equation at 1 atm pressure and 25oC: 2C6H6 (l) + 15O2 (g) ⟶…

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Q: Part 1. Write the correct systematic or IUPAC name of the following organic compounds. 1. 3. 2. H₂C…

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Q: When beryllium-9 is bombarded with alpha particles, carbon-12 and neutrons are produced. Write a…

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Q: Problem 3.2 Name the following cycloalkenes: (a) CH3 CH3 (b) CH3 -CH3 (c) -CH(CH3)2

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Q: For the following reaction, draw the Lewis Dot structure for each reactant and product including any…

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Q: Consider the Dieterici equation for the pressure of a real gas (i) Find the dimension of the…

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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.