If a penny has a mass of 3.015 g and is 95.0% copper, what is the mass of copper in the coin in pounds (lb)? (1kg = 2.2 lbs; 1000g = 1kg)

Q: 105 mL of water was added to 40.0 mL of 0.550 M MgCl₂ solution. Assuming the volumes are additive,…

A: Initial volume of MgCl2 solution (V1) = 40.0 mLInitial concentration of MgCl2 solution (M1) =…

Q: ORGANIC CHEMISTRY PLEASE EXPLAIN, SEE PHOTO:  Predict the structure for this unknown. Please…

A: Given question related to identification of chemical formula and structure of unknown compound by…

Q: Using IUPAC guidelines, name the following organic compound Answer: Using IUPAC guidelines, name the…

A: The parent compound in all the three molecules is benzene (C6).

Q: What is the empirical formula of a compound composed of 69.94% Fe and 30.06% O by mass? empirical…

A: Empirical formula tell us the simplest whole number ratio in the atoms of different elements are…

Q: A chemist fills a reaction vessel with 5.44 atm methane (CH) gas, 3.97 atm oxygen (0₂) gas, 9.55 atm…

A:

Q: Propose how the following molecules can be synthesized from the illustrated starting material. Draw…

A: In the first step ,we convert the alkene to epoxide by reacting with mCPBA .Let epoxide form at the…

Q: will this reaction proceed via SN1 or SN2 and why?

A: The given reaction scheme is shown belowWe have to determine whether the given reaction proceeds via…

Q: Identify which trial produced the maximum amount of precipitate during the reaction between sodium…

A: We have to choose the correct option.

Q: Tents F Q2 C A Adds electrons into two porbitals BLoses two s electrons C D E the Loses two…

A: We have given with different statements and we have to put the elements in their place.

Q: The reaction C₂Hg (g) →2C₂H₂(g) has an activation energy of 262 kJ/mol. At 600.0 K, the rate…

A:

Q: 8. Calculate the moment of inertia and the energy in the J = 1 rotational state for ¹H₂ in which the…

A:

Q: How many N atoms are present are in a 3.13 ng sample of nitrobenzene, c6h5no2? Answer should be in…

A: Given,mass of nitrobenzene ( C6H5NO2 ) = 3.13 ng

Q: 2. What are the hybridization states of each carbon atoms in the following molecules?…

A: Steric number = number of lone pair of electrons on the central atom + number of bonds pair to the…

Q: At a particular temperature, K = 2.9 x 10-7 for the following balanced reaction: 2NOBr (g) 2NO(g) +…

A:

Q: For the pair of compounds below, identify the more acidic compound without using a pK₂ table.…

A: The two given compounds are cyclohexanol and cyclohexane thiol

Q: For each chemical reaction listed in the table below, decide whether the highlight reaction N₂(g)+3…

A: The atom whose oxidation state increases get oxidised in the reaction and the atom whose oxidation…

Q: Provide a stepwise curved arrow mechanism for the following reaction. HO LCH₂CH₂ CH₂CH3 H₂SO4 N…

A: The given reaction is an example of rearrangement reaction.In this reaction ring expansion is formed…

Q: An intrinsic property is one a That is dependent on how much of the material is present That is…

A: This problem is based on general Chemistry.In the first part we have to define intrinsic property of…

Q: A central atom with 4 electron pairs (single bonds and/or lone pairs of electrons) could have which…

A: Molecular geometry of a molecule takes into consideration both bond pairs and lone pairs.…

Q: Explain how the calculated the Dihedral angle of the 2 methyle groups to be 90 degrees?

A: Since you have posted multiple questions, we will provide the solution only to the first question as…

Q: For the reaction 2 A (g) → B (g), Kp = 0.00221 at 298 K. When AG = 8.35 kJ/mol, what is the partial…

A: The problem is based on equilibrium. Here, the equilibrium is given. We have to write down the…

Q: An analytical chemist weighs out 0.406 g of an unknown diprotic acid into a 250 mL volumetric flask…

A: The point in the titration curve, where the moles of acid and the moles of the base are equal in…

Q: Ammonia will decompose into nitrogen and hydrogen at high temperature. An industrial chemist…

A: The equilibrium reaction can be written as follows:The given moles of ammonia = 6.0 molThe volume of…

Q: Be sure to answer all parts. Cobalt-60 is a radioactive isotope used to treat cancers of the brain…

A: Energy= 0.500 MeV 1eV = 1.602 × 10-19J Frequency in Hz =? Wavelength in m =?

Q: 8. CaSO4-MnSO4 solid solution contains 7 wt% Mn. Calculate the mole fraction of CaSO4 in the solid…

A: Note:“Since you have posted multiple questions, we will provide the solution only to the first…

Q: Draw the additional resonance structure(s) of the structure below? H₂C-S-CH₂

A:

Q: What are the hybridization states of each carbon atoms in the following molecules? Illustrate your…

A: Hybridization refers to mixing of the atomic orbital characters to form new hybrid orbitals.

Q: Write the systematic name of each organic molecule: structure CH3 CH3 CH3 C C CH3 CH₂ CH3 C CH3 CH3…

A:

Q: Identify the different functional groups in the following molecules using names from the table…

A: Functional groups are atoms or groups of atoms, which are present in organic compounds and determine…

Q: Balance the following redox reaction in acidic solution. 2+ H₂O(1)+Zn²+ (aq) O₂(g) +Zn(s)

A:

Q: Give typed full explanation  how many electrons occupy Px orbitals for Sn

A: Pauli Exclusion priciple:According to the Pauli Exclusion Principle, no two electrons in the same…

Q: In a study of the gas phase decomposition of hydrogen peroxide at 400 °C H₂O₂(g) +H₂O(g) + ½ O₂(g)…

A:

Q: Draw the expected major organic product of the Sharpless epoxidation of each allylic alcohol using…

A: Sharpness epoxidation is reaction of allylic alcohol.It is an enantioselective reaction. In this…

Q: A compound containing only chromium and chlorine contains 32.8 mass percent chromium. Determine its…

A: A compound containing only chromium and chlorine,mass % of Cr = 32.8 % = 32.8 gmass % of Cl = (100 -…

Q: What is the pH of a solution containing the following: a. 80 mM H+ b. 2x10-2 mg/L H+ c. 6x10-6…

A:

Q: Draw the additional resonance structure(s) of the structure below? CH₂-C=N: Include all valence lone…

A: Resonance structures involve the delocalization of electrons and provide stability to the compound.

Q: In concentrated sulfuric acid, ethanol (CH,CH₂OH) forms diethyl ether (CH₂CH₂OCH₂CH₂) and water…

A: The Given reaction-Side Reaction-Molecular weight of CH3CH2OH = 46.07 g/molMolecular weight of…

Q: What is the major product for the reaction below? HCI a. Select one: O a. Structure a Ob. Structure…

A: The major product during the addition of an unsymmetrical reagent to an unsymmetrical alkene follows…

Q: A chemist adds 80.0 mL of a 0.189 mol/L aluminum sulfate (Al₂(SO4),) has added to the flask. Be sure…

A: The volume of aluminum sulfate solution is .The molarity of aluminum sulfate solution is .To find…

Q: What is the pH of a solution containing 3xx10^(-4)mg//L of OH^(-)(25^(@)C) ?

A: Given that the concentration of the HO- ion in the solution is 3×10-4 mg/L at 25 °C.Formula:pOH =…

Q: For the following compounds, assign R or S in the box if a chiral center is present. If the compound…

A: The chiral center is the atom which is connected to four different atoms/groups. These chiral…

Q: 5. Write the DETAILED mechanism of the following reaction: LOCH3 1) Excess CH₂MgBr 2) H₂O OH You

A: The given reaction is shown belowWe have to draw the detailed mechanism of the reaction.The given…

Q: 8.) Elemental Analysis: 68.13 % Carbon, 13.72 % Hydrogen, 18.15 % Oxygen Reyle kendly 0000 10 20 30…

A: Mol wt = 88 g/mol (from the molecular ion peak in mass spec)% C = 68.13 = 68.13 x 88/100 = 59.95g…

Q: ORGANIC CHEMISTRY: PLEASE EXPLAIN. AND SEE PHOTO predict the structure of the unknown compound…

A: The spectroscopic tool is an important tool for the structure elucidation of unknown organic…

Q: An SN2 mechanism takes place when 3-(bromomethyl)pentane is added to each nucleophile listed below.…

A: Concepts of SN2 reaction.

Q: 20.0 mL of a 0.617 M lithium phosphide and 25.0 mL of a 0.592 M molybdenum (IV) chloride. What mass…

A: Given,molarity of lithium phosphide = 0.617 Mvolume of lithium phosphide = 20.0 mLMolarity of…

Q: The Hall process for the production of aluminum involves the reaction of aluminum oxide with…

A: Answer:The limiting reagent is the reactant that exhuast first in the chemical reaction and decides…

Q: Decide which intermolecular forces act between the molecules of each compound in the table below.…

A: On the basis of intermolecular forces, we have to complete the table given below.

Q: why wasnt pH used

A: In the above followup question, it is asked why the pH value is not used in the calculation of…

Q: А) How many present? HNMD and C NMN бедповале

A: NMR spectroscopy deals with the nature and behaviour of the NMR active nucleus in external magnetic…

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.