A chemist mixes 45.7 g of carbon tetrachloride with 98.4 g of 2-ethyltoluene and 31.1 g of thiophene. Calculate the percent by mass of each component of this solution. Round each of your answers to 3 significant digits.

Q: Calculate the volume in milliliters of a 2.7 mol/L iron (II) bromide solution that contains 25.0 g…

A:

Q: Arrange the following units of molarity into the correct order from largest to smallest. mM, M, uM,…

A: •Given units are:- mM M uM pM nM fM

Q: 2. Name the following chain:

A: For naming first of all identify the longest carbon chain containing functional group. Start…

Q: 11.5 Propose a reasonable organic reaction mechanism for the reaction shown below using the curved…

A:

Q: Alyssa is trying to prepare 50 mL of MBP Purification Buffer which should have final concentration…

A: Given data is  Volume of buffer solu= 50 mL  concentration of  Tris (pH 7.4) = 20 mM  Concentration…

Q: Calculate ΔH∘f (in kilojoules per mole) for benzene, C6H6, from the following data:

A:

Q: Identify the molecules that have a net dipole moment.

A: In the given problem we need to identify the molecules which have a net dipole moment.

Q: 86) (a) Which one of the following molecule is chiral? Br CH3 (c) Br CH3

A: A molecule is chiral if it does not have any POS COS

Q: Draw the product of the reaction shown below. Ignore inorganic byproducts. 1. NaBH4 2. H3O+ H

A:

Q: 2-Propanone, also known as acetone, is the simplest ketone. Identify the partial charges (8 and 8)…

A: In organic chemistry,ketone is a functional group which structural formula is R-CO-R wher R may be…

Q: -which would be the best way to carry out the following synthesis? CH-CH-CH, CH-CH-CH,OH Br

A:

Q: Natural waters often contain relatively high levels of calcium ion, Ca²+, and hydrogen carbonate ion…

A:

Q: The heat of fusion is equal to the heat of solidification. 73°F Partly sunny O True Search O False

A: Since the process of fusion and solidification of a given substance are completely opposite…

Q: 395. mg of an unknown protein are dissolved in enough solvent to make 5.00 mL of solution. The…

A: Given, Osmotic pressure of solution (π) = 0.284 atm Volume of the solution (V) = 5.00 mL = 0.005 L…

Q: Pu-238 undergoes alpha decay .show an equation

A: Given that Pu-238 undergoes alpha decay. The equation which represents the above nuclear reaction…

Q: A 0.528 g sample of a metal, M, reacts completely with sulfuric acid according to the reaction…

A: Given data is  Mass of the sample of the metal = 0.528 g Volume of hydrogen gas collected= 205 mL…

Q: Draw the structure(s) of the major organic product(s) of the following reaction. 0° + H₂C=PPh

A: We have to draw the structure of the major organic product formed in the following reaction.…

Q: Dimensional analysis if a person weighs 125 lbs, 8oz, How many mg does the individual weigh?

A: Given A person weight 125 lbs, 8oz

Q: 28. What will be the value of freezing point depression constant of cyclobutene having freezing…

A:

Q: what is the heat of vaporization for toluene Calculate the enthalpy of vaporization for toluene in…

A: Clausius-Clapeyron Equation P∝exp(-∆HvapR)   ln(P1P2) =-∆HvapR(1T1-1T2)   where, ∆Hvap =Enthalpy of…

Q: a. For the following unbalanced equation, indicate how many moles of the second reactant would be…

A: Answer: To solve these questions first of all we have to balance the given chemical equation and…

Q: A graph of Z concentration during a chemical reaction is shown. Determine the average rate Z is…

A: To calculate the average rate and instantaneous rate from the given graph of concentration of Z with…

Q: a. For the following unbalanced chemical equation, suppose 10.4 g of each reactant is taken. Show by…

A: The answer for this problem is provided below in great details within the attached figure.

Q: i) Br H3C, CH3 .../IC/ CH3S Acetone CH₂CH₂OH heat tion between

A: This question belongs to reaction mechanism.

Q: Complete the following Lewis structure by adding in missing lone pairs and pi bonds. Assume all…

A: Carbon has a valency of 4 and no lone pair.  Oxygen has a valency of 2 and 2 lone pairs.  Nitrogen…

Q: 11.11 Ethers can often be prepared by SN2 reaction of alkoxide ions, RO", with alkyl halides. Which…

A: To answer: Which of the two possible routes would be the better choice to synthesize the molecule…

Q: Sulfuric acid (H2SO4), the most widely produced chemical in the world, is made by a two-step…

A:

Q: 10 'H 1. How many types of proton environment? 2. Show the (n+1) effect on splitting pattern 3. Do…

A: Given Butyraldehyde And NMR spectrum of this molecule.

Q: For each highlighted bond (shown in red), select the arrow that indicates the direction of bond…

A: Polarity in bond:- Polarity occurs due to difference in Electronegativity of elements. •Arrow of…

Q: What is the formal charge on the indicated Nitrogen atom in the following compound? Free pairs are…

A: The formula of determination of Farmal charge on atom is        FC = V - N - B÷2  Where  V = Valence…

Q: Sometimes in lab we collect the gas formed by a chemical reaction over water (see sketch at right).…

A:

Q: CH₂=CH-CH=CH-CH=CH-CH₂-CH3 TOPAC Nance

A: Given compound -

Q: The addition of a catalyst(s) is an extra step in the overall reaction. Which of the following…

A: Answer:- Catalyst is a substance which alters the rate of reactions by lowering the activation…

Q: If you mix 1.15 g Na₂C₂O (FM 134.00) with 0.60 g KMnO4 (FM 158.03) and excess aqueous acid, which…

A: Given:- Na2C2O4  => Weight=1.15 gm ,         Formula mass(FM) = 134 gm KMnO4 => Weight= 0.60…

Q: 1. Write a chemical reaction for the oxidation of propan-1-ol into propa- noic acid. 2. How is a…

A: We have to write the oxidation reaction for oxidation of propan-1-ol

Q: The mineral hydroxyapatite, Cano(PO4)(OH)2, dissociates in water according to the following…

A: Let us apply the concept of equilibrium to solve the given question.

Q: Which of the hydrocarbons in the following group are isomers? Select all that apply.

A: Hydrocarbons are the compounds composed of carbon.and hydrogen atoms. There are mainly four types of…

Q: C#3 CH₂=CH-C²=CH-CH₂-CH=C-CH ₂ JUPAC Name? CH₂=CH-CH₂

A: IUPAC nomenclature is used for naming the organic compound as per recommended by international union…

Q: C. Br F b. 사

A: We will answer using IUPAC nomenclature of organic molecules.

Q: Loading dose in IV infusion is calculated by the equation: O a. Vd x Css O b. KO/K O C. KO/Clearance…

A: •Given:-

Q: The answers on my homework are in J. Your answer is in kJ. Would that be the same thing?  One…

A: No, absolutely not the J and kJ are not the same thing. Actually both are the units of energy and…

Q: The nitrogen content of organic compounds can be determined by the Dumas method. The compound in…

A: The volume of nitrogen gas is = 84.9 mL The pressure of nitrogen gas is = 758.3 torr - 23.8 torr =…

Q: Answer the questions below about the highlighted atom in this Lewis structure: .. H-0-C=0 | HIC-H I…

A: Sigma bonds Sigma bonds are formed by head to head overlapping of atomic orbitals. All single bonds…

Q: a. Write the formula and calculate the molar mass for iron(II) chloride. Formula: Molar mass = g b.…

A:

Q: The mass of Fe₂O3 isolated from analysis of 12 tablets was 0.277 g. What is the average mass of iron…

A: Given        Mass of 12 tablets = 0.277 g  Compound = Fe2O3

Q: 1. Petroleum is a mixture of many different hydrocarbons a) Which two of the structures A, B, C, and…

A: We have to identify the structures from A, B, C and D that are hydrocarbons

Q: 11.2 Identify the two most likely sites for an SN2 reaction to take place in the molecule shown…

A: Given Compound :-

Q: MCHO MCH ON NOTO Pue DEN NOTO HOPNWOOD PACH MOTO емисотореното о Which tetap

A: Buffer solution: The solution that resists the change in pH is known as a buffer solution. The…

Q: help with the following ochem question part a, b, and c regarding the NMR for the compound.... (5S,…

A:

Q: CuSO4 (aq) + Zn(s) → Cu(s) + ZnSO4 (aq) The single-replacement reaction above produces 113.0 g of…

A:

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.