Carry out each calculation and report the answer using the proper number of significant figures. 53.6 x 0.41   25.825 - 3.86   65.2/12

Q: Hydrogen chloride decomposes to form hydrogen and chlorine, like this: 2 HCl(g) H,(g)+ Cl(g) Also, a…

A: Given,  2HCl(g) → H2(g) + Cl2(g) At equilibrium, concentration are: [HCl] = 0.73 M [H2] = 1.2 M…

Q: 2. Calculate the pH of a solution when 10.00 mL of 0.1000 M NaOH is added to 20.00 mL of 0.1000 M…

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Q: (59,63) A compound with a molecular mass of 168 g/mol has an enthalpy of vaporization of 56.8…

A: Given: Vapour pressure at 35 oC = 455 torr. And ΔHvap = 56.8 KJ/mol = 56800 J/mol.

Q: X represents a nonmetal atom with an atomic mass of 107.91 amu.  Calculate the number of grams of…

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Q: Using the appropriate reagents and sequence of reactions, propose how you could get…

A: GIVEN:- Using the appropriate reagents and sequence of reactions, propose how you could get…

Q: Freon-12 (CCI2 F2) is used as a refrigerant in air conditioners and as a propellant in aerosol cans.…

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Q: %Lysis COMP 250 COMP 100 COMP 20 n=1 87.77 81.73 65.8 n=2 81.71 50.45 63.7 n=3 86.64 55.38 59.4 n=4…

A: The solution of the question is given below:

Q: A schematic of a mass spectrometer is shown. To ion transducer Ion with unstable trajectory Ion with…

A: GIVEN:-

Q: Which answer applies to the following statement? Some alkene addition reactions involve a concerted…

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Q: 4. Sometimes protected species are not as "inert" as we think they might be. Provide a mechanism for…

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Q: B-Carotene is better to be absorbed through cooked food? A. True B. False

A: We can control the amount lost by using specific methods of cooking.  Beta carotene is a fat-soluble…

Q: HO HO, What is this molecule's chemical formula? Note: write the simplest molecular chemical…

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Q: For each system listed in the first column of the table below, decide (if possible) whether the…

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Q: Bb C Online t. Bb (Review Topica) (References) Use the References to access important values if…

A: This is an example of acid base reaction where barium hydroxide reacts with hydrochloric acid to…

Q: [Review Topics) [References] Use the References to access important values if needed for this…

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Q: Propionic acid, C2H5CO2H (Ka=1.43*10^-5), is used in the manufacture of calcium propionate, a food…

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Q: True or false and why is false 8   Structures produced by X-ray diffraction are as good as the…

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Q: The C=O bond the C=C bond in alkenes. O A. as polar as O B. is less polar than O C. nonpolar like O…

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Q: Calculate the pH and concentrations of CH, NH, and CH, NH; in a 0.0339 M methylamine (CH, NH,)…

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Q: Use this condensed chemica structure to complete the table below. I| CH, C 0 C CH, The condensed…

A: Given, The condest chemical structure of acetic anhydride: Number of carbon-carbon single (C-C)…

Q: Pregabalin, C8H17NO2 is used as a treatment of epilepsy and neuropathic pain. NH2 H O pK, = 4.2 pK =…

A: Given: pKb = 9.8

Q: Label each number in each statement as an exact or measured number. A child fell and had a 4-cm…

A: => Counting numbers are exact numbers while the measurements ie. measured quantity are identified…

Q: A solution contains 1.25x102 M silver nitrate and 1.11x102 M zinc acetate. Solid ammonium cyanide is…

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Q: 2Cu(NO3)2 -----> 2CuO + 4NO2 + O2 WEIGHT OF COPPER NITRATE = 4.5616g WEIGHT OF COPPER OXIDE =…

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Q: What is the heat of combustion of gasoline if 4.00g of gasoline are burned in a calorimeter to raise…

A: we need to calculate the heat of combustion of gasoline

Q: Which of the following sets of quantum numbers, do the following: i. If correct, draw an orbital…

A: In quantum we have 4 quantum numbers which are used to specify the position of electron.  For…

Q: 5. Calculate the vapor pressure of a solution made by dissolving 82.4 g of urea (molar mass = 60.06…

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Q: 2. Count the electrons in the following compounds and indicate the electron count per metal unit. Me…

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Q: 2. Write the equation for the reaction between propylamine and HBr.

A: Note : Since you have posted multiple questions, we are entitled to answer the first only. Please…

Q: An atom with the element symbol Sm has 62 protons in its nucleus. For the 62nd electron, determine…

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Q: Find the mole fraction of neon in a mixture with total pressure 3.9 atm, volume 8.7 L, temperature…

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Q: Question 10 Compared to a photon with1 = 100 nm, a photon with 1 = 600 nm has a frequency, a energy,…

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Q: A solution contains 0.0500 M Ca<+ and 0.0910 M Ag*. If solid Na3PO4 is added to this mixture, which…

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Q: Which of the following compounds has the smallest Keq for the addition of water. CF3

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Q: When working with very low concentrations, such as 0.000245 M, it can be more convenient to…

A: Molarity: It is the number of moles of solute present per Litre of the solution. The units of…

Q: Identify the reagents you would use to accomplish each of the following transformations: он + En "Br…

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Q: HBr (excess)

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Q: Oxacarbazepine (C15H12N20) is used to treat epilepsy. NH2 What would happen to the equilibrium of…

A: Given: C15H12N2O is used to treat epilepsy. And C15H13N2O+ is added to the system.

Q: Part A Rank these systems in order of decreasing entropy. Rank from highest to lowest entropy. To…

A: Part A: Out of all the given systems, CCl4 has the most no. of molecules. Nitrogen gas exists as N2…

Q: Phosphorus (P4) and oxygen react to produce diphosphorus pentoxide.   How many grams of diphosphorus…

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Q: Valproate ( CgH1502) is used to treat epilepsy. What would happen to the equilibrium of valproate in…

A: Given: C8H15O2- is used to treat epilepsy. And more C8H15O2- is added to the system.

Q: A solution is 1.4×10−2 MM in Ba2+Ba2+ and 1.9×10−2 MM in Ca2+Ca2+. Consider that…

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Q: Write the chemical symbols for three different atoms or atomic cations with 21 electrons.

A: Write different atoms or cations having 21 electrons ?

Q: Select the product of the following reaction. 1. NABH4 H. HO, 2. H30* Но HO, HO

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Q: Label each as either an element or compound. Ni NO2 HI

A: 1. Ni - This is an element of d-block with atomic number 28 in periodic table. 2. NO2 -This is a…

Q: How many moles of sodium acetate should be added to 0.40 mol CH3COOH to make a solution buffering at…

A: Given- Moles of CH3COOH = 0.40 mol pH = 4.46 pKa = 4.76

Q: Identify the compounds that are more soluble in an acidic solution than in a neutral solution. CaF,…

A: The compounds given are CaF2, NaNO3, LiClO4, CdS and CuI2.

Q: Determine if each of the following is a chemical or physical property. Chlorine gas has a…

A: Physical properties are those which tells about physical appearance of a substance .  In this we…

Q: true or false and why is false 4 Paramagnetic substances are those which contain unpaired electrons…

A: We have find out true or false.

Q: How many bonds could each of the following chelating ligands form with a metal ion? (a)…

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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.