Which of the following has dipole-dipole interactions as its strongest intermolecular force? PF3 BF3 NH4Cl a. PF3 b. BF3 c. NH4Cl d. PF3 and BF3 e. f. g. h. PF3 and NH4Cl BF3 and NH4Cl All three None of them

Q: Write the formula of the conjugate base of the Brønsted-Lowry acid, H₂S

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Q: What mass of Fe₂O3 is produced when 16.2 L of O₂ gas react with FeS at 458 K and 5.29 atm. 4 FeS (s)…

A: Given reaction 4FeS (s) + 7 O2 (g) -------> 2Fe2O3 (s) + 4SO2 (g)  Volume of O2 (V) = 16.2 L…

Q: Which of the following aqueous solutions are good buffer systems? (Select all that apply.)…

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A: This type of problem can be solved by using Arrhenius equation.

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Q: Provide the correct IUPAC name for the skeletal (line-bond) structure shown here.

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Q: Determine [OH-] of a solution that is 0.260 M in HCO3-. (Ka1 for H2CO3 is 4.3x10-7.)

A: Given,  Molarity of HCO3- = 0.260 M Ka1 of H2CO3 = 4.3 × 10-7

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A: We have to draw the curved arrow to complete mechanism.

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Q: or each compound, label the different H’s with lowercase letters, write the chemical shift range,…

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Q: A 10.00-L tank contains oxygen gas at 2.50 atm. What is the pressure of gas in torr? How about mmHg?

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Q: H+ HO HC1 (Excess) OH 1. LiAlH 4 2. H₂O* H₂ Pd/C 1. CH 3MgBr 2. H₂O+

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Q: 1) Calculate the following for the reaction at 298.0 K . The reaction is 2 SmCl3(aq) + 6 LiCl(aq) +…

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Q: Read each description in the first column of the table below. If any chemical element with atomic…

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Q: = the relationship and the is typically written RT 8.314 J/mol. K), quency factor, and or the…

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Q: byproducts. Nal of

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Q: Identify reagents that can be used to achieve the following transformation: The transformation above…

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A: Kp=1.5×1018Moles of NO=0.030 molVolume=1.0 LT=27°CT(in K)=T(in °C)+273.15=27+273.15=300.15 K 3 NO…

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A: The given reaction scheme is shown below

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Q: 2.5 2.3 2.1 2 10 - 9 1.8 1.6 1.4 8 (ppm) 8 7 1.2 6 5 8 (ppm) +3 1.50 1.00 2 1.50 1

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Q: If a 0.076 M solution of chromic acid, H₂CrO4, is prepared, what is the concentration of HCrO? H₂…

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Q: How many milliliters of a 0.104 M sample can be made from 33.7 mL of a 0.293 M sample.

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Q: An analytical chemist is titrating 219.9 mL of a 0.7400M solution of isopropylamine ((CH₂), CHNH₂)…

A: Given, Molarity of isopropyl amine [ (CH3)2CHNH2) ] = 0.7400 M Volume of (CH3)2CHNH2) = 219.9 mL…

Q: 8. Given that Ksp for Agl(s) = 8.3 × 10-17 and Kf for [Ag(CN)₂] = 1.0 × 10²¹ at 25°C, what is the AG…

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Q: stion 1 of 58 Calculate the frequency in hertz of electromagnetic radiation that has a wavelength of…

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Q: he pH of a 0.35 M solution of hydrocyanic acid (HCN) is measured to be 4.83. Calculate the acid…

A: pH = 4.83 Concentration  of HCN (c) = 0.35M Ka = ?

Q: 1) Br2, HCl (aq.) 2) NaOH, heat

A: Ketone in presence of acid forms enolate which on reaction with halogen gives alpha halo ketone

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States of Matter

The substance that constitutes everything in the universe is known as matter. Matter comprises atoms which in turn are composed of electrons, protons, and neutrons. Different atoms combine together to give rise to molecules that act as a foundation for all kinds of substances. There are five states of matter based on their energies of attraction, namely solid, liquid, gases, plasma, and BEC (Bose-Einstein condensates). 

Chemical Reactions and Equations

When a chemical species is transformed into another chemical species it is said to have undergone a chemical reaction. It consists of breaking existing bonds and forming new bonds by changing the position of electrons. These reactions are best explained using a chemical equation.