19. If 500 mL of mineral oil are used to prepare a liter of mineral oil emulsion, how many grams of the oil, having a specific gravity of 0.87, would be used in the preparation of 1 gallon of the emulsion?

Q: A dialysis tube that contains 10 mL of water and that is permeable to water but not sucrose is…

A: Tonicity is defined as the ability of a solution to make out solvent in or out from the different…

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Q: Which of the following correctly ranks the cycloalkanes in order of increasing ring strain per…

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Q: Draw energy level diagrams and electron configurations for the following: Atoms: a. Strontium atom…

A: Here we have to write the energy level electron configuration diagram of the following given atoms.

Q: The compound 1-chloro-1-methylcyclohexane exists as two interconverting chair conformations shown.…

A: Answer: In this question we have to find the Gibbs free energy change for the interconversion…

Q: B) Propose a synthesis for Compound X below from benzene and appropriate reagents and reaction…

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Q: What is the total number of protons and neutrons in the nuclide? 97 42 Mo

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Q: 350°C while the volume is kept density of the gas: increases O decreases O remains the same O not…

A: Two moles of chlorine gas at 200 degree centigrade are heated to 350 degree centigrade while the…

Q: 8.) Loratadine (C22H23N2O2Cl) is an antihistamine marketed as Claritin. What is the vapor pressure,…

A: Here we are required to find the vapour pressure of the solution.

Q: Calculate accuracy and precision for each set of 5 aliquots. Assume that the density of water Is…

A: Concept used: Error % =(Accepted value - Experimental ValueAccepted value)×100 Deviation = Average -…

Q: A reaction profile (not to scale!) for the reaction 20203 +0 is shown below: E (KJ) O2 + O2 411 03 +…

A: We are given a reaction energy curve and we need to check if given statements are true.  A reaction…

Q: Why should a TLC plate be removed from the solvent before the solvent front reaches the top of the…

A: TLC plate: For both quantitative and qualitative analysis, thin layer chromatography (TLC) would be…

Q: Chemistry What is the product of the oxidation of this fatty acid? Draw beta oxidation process and…

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Q: If experimental determinations of Kp at different temperatures for a given equilibrium in the…

A: Given: ln Kp = a T-2 + c ln(T) and a = 123.5 K2 c = 23.6 To Calculate: The value of ΔHº and ΔSº at…

Q: environment that may cause problems on the system. musculoskeletal O Physical hazard O Biological…

A: Given data:-  Calcium oxide CaO MW = 56.0774 g/mole   Mass of Calcium Ca = 4.20 g (MW =40.078 g/mol)…

Q: =. Potassium permanganate is a powerful oxidizer and reacts explosively with glycerol according to…

A: #(a): We are given the balanced redox reaction.  Mass of potassium permanganate, KMnO4 taken = 2.0…

Q: Click the "draw structure" button to launch the drawing utility. Complete the following reaction by…

A: Carboxylic acid reacts with alcohol to form an ester in the presence of an acid catalyst, the…

Q: Calculate the molar mass of a strong electrolyte when a solution is prepared with 14.4 g of the…

A: Given Weight of strong electrolyte = 14.4 g Van't haff factor (i) = 2.39 Volume of solvent = 1.01 L…

Q: At 55.0 °C, a 16.00 L vessel is filled with 8.00 atm of Gas A and 4.89 atm of Gas B. What is the…

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Q: the least deshielded nucleus first). D 1 1 5 ^^ Arrange the indicated ¹H nuclei in the order of…

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Q: How many grams of calcium hydride are needed to form 4.650 gg of hydrogen gas?

A: Given mass of hydrogen gas= 4.650 gram To find =  mass of calcium hydride needed to produce required…

Q: What is the empirical formula for the compound P4O6? Express your answer as a chemical formula.…

A: Empirical formula is formula in which elements are present in simplest whole ration. To obtain…

Q: 41 g piece of ice at 0.0 ∘C is added to a sample of water at 9.0 ∘C . All of the ice melts, and the…

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Q: What is the correct name of these structures?

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Q: A chemist wishes to make a solution using 3.41 g of CoCl3 in which the total concentration of…

A: We would use mole ratio to calculate the concentration of CoCl3 for given concentration of Cl- .…

Q: Suppose you isolate an acid from clover leaves and know that it contains only the elements C, H, and…

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Q: Which of the following statements is not correct? O The effusion of H₂ is faster than the effusion…

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Q: unequal sharing of electrons c. when there are weak attractions between two molecules d. when there…

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Q: Here's an IR spectrum. Which of the suggested chemical structures is it consistent with? 100…

A: IR spectroscopy is used to determine the functional groups present in the sample. Different…

Q: Macmillan Learning The rate constant for this first-order reaction is 0.940s at 400 °C. A products…

A: Answer: Given data: k=0.940s-1a0=0.680Ma=0.280M

Q: Calculate for the volume in milliliters of 2.26 M potassium hydroxide (MW = 56.1056 g/mol) that…

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Q: for each of the molecules below, indicate the pH range where the molecule would be ionized. لامارة…

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Q: Calculate the volume of dH2O (in mL) required to prepare 100.0 mL of a buffer with a final…

A: The pH of the buffer solution is to be determined using Henderson-Hasselbalch equation which is…

Q: How many optical isomers (stereoisomers) are possible for the above carbohydrate (linear form

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Q: Consider the gaseous reaction shown below. How many mol of D gas are formed if at STP, 18.2 L of A…

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Q: b what is the normal boiling point of each compound? 0 16 25 48 67 81 102 800 CS₂: CH3 NO₂: 0 °C -10…

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Q: The solubility product (Ksp) for silver sulfate (Ag2SO4 (s)) is 1.2x10-5. Upon dissolving, Ag2SO4…

A: Solubility product and activity coefficient of Silver Sulfate are given, we have to find the…

Q: KCl(s) + _O2(g). Balance th calculate the mass of KCIO; (N would be required to produce 2 measured…

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Q: 12. Calculate the activity coefficient and activity of bromide in 500 mL of a solution that has…

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Q: (5) A new element, element Jn, is discovered on mole of Jn atoms is about 4750 kJ/mol. What is t…

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Q: Look up Boron (Z=5) in the periodic table and predict how many covalent bonds it is likely to form.

A: Boron, Z= 5

Q: Suppose you need to fill an agarose gel tank with 400 mL of TAE buffer. Unfortunately, one of your…

A: Here We use the volume strength formula , that is , V1S1=V2S2

Q: احلا

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Q: ded for this question. The boiling point of ethanol CH3 CH₂OH is 78.50 °C at 1 atmosphere. A…

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Q: Determine the molar mass of the following compounds: a) ammonia, NH, b) sodium hydrogen carbonate…

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Q: Vapor pressure data are given here for acetic acid, CH3COOH. Temperature (°C) Vapor Pressure (mm Hg)…

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Q: 2. What is the compound's empirical formula if a 0.234 g sample of the compound was burned in air to…

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Q: For the equilibrium, 2NO(g)+2H₂(g)→→N₂(g)+2H₂O(g), what will happen if it were in a rigid vessel and…

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Q: What is the concentration of acetylene (in units of grams per liter) dissolved in water at 25°C,…

A: Given,  Partial pressure of the solution = 0.266 atm  K for C2H2 = 4.1x10-2 mol/L.atm  We have to…

Q: Calculate the percent by mass of water in the following compounds. (a) Cr(NO3)3 • 9H2O (b) AsO2 •…

A: Here we have to calculate the percentage by mass of water present in the following given compounds.

Matter and Measurement

In the universe, there is matter, energy, and void space. The universe contains energy and void space. The definition of matter can be considered as something which possesses mass and consumes space. Chemistry is that branch of science which deals with the study of matter. Under chemistry, nature, composition, and the changes occurring to matter are discussed.