Explain the difference between powdered cocaine [hydrochloride] and crack cocaine in terms of method of use and toxic effects.

Q: avord Cylindento obtain avelume 3 In Part B, did all of your mass measurements have the same number ...

A: Measurement of any value or a parameter is an important aspect in the scientific study. The measured...

Q: Using your own words explain why ceramics are stronger and stiffer than polymers

A:

Q: What is the difference between the excitation and emission spectrum?

A: Difference between excitation and emission spectrum.

Q: 1. Write a balanced nuciear equations for the following: a) the loss of an alpha particle by Thorium...

A: Nuclear Chemistry can be defined as the branch of chemistry that deals with radioactivity, nuclear r...

Q: PART A. Molecular Models Isomers Polarity (P or NP) Lewis Molecular Hybridization (draw structures) ...

A: The solution is as follows:  

Q: Complete and balance the following equation: Perchloric acid and lithium carbonate Add all of the ...

A: The solution is given below - 

Q: A piece of iran, which has a specific heat capacity of 0.452 J-g1. C, with a mass of 54.3218 g is he...

A: Specific heat capacity of iron (C) = 0.452 J.g-1 oC-1                          Mass of iron (m) = 54...

Q: Sodium metal requires a photon with a minimum energy of 4.41 x10-19 J to emit electrons. What is the...

A: As you have asked part (c), solving the same for you: (c) 

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A: Mass spectrum is the technique used in analytical chemistry for the separation of ions based on the ...

Q: Give a definition of what polymers are, and what is their application or use in everyday life

A: Answer of the question given below, 

Q: What is the pH of buffer prepared by mixing 250 mL of 0.2 M benzoic acid and 100 mL of 0.25 M sodium...

A: PH of buffer solution is calculated by using Henderson Hassel balch equation

Q: What is the formula for dinitrogen tetrafluoride ? What is the formula for silicon dioxide ? What is...

A:

Q: Name the functional group in each of the followia. a. butanol b. propene c. ethanoic acid

A: The answer to the following question is-

Q: What are the names of the following compounds? a. HNO2 (aq) Name: b. SO2 Name: с. Cu(Н, РОд)2 Name: ...

A:

Q: 0 Calculate the ionic strength for a solution containing 0.01SM NaCl and 0.0ZM CaSO Estimate the act...

A: A question based on ionic equilibrium that is to be accomplished.

Q: Morphine has a very long half-life due to its active metabolite that undergoes what process?

A: Morphine has a very long half-life due to its active metabolite.

Q: What are the half-cell potentials and the electrochemical potential of the whole cell? Negative Ele...

A: A question based on electrochemical cells that is to be accomplished.

Q: b(NO2)2 is an ionic compound. What are the ions of which it is composed?

A:

Q: Tools Add-ons Help Last edit was 4 minutes ago 4. Cu AgNO,- Cu(NO,)2 Ag Balanced Equation: Reaction ...

A: Balancing a chemical reaction involves making the number atoms equal on both sides of reaction

Q: What is the molarity and molality of concentrated HF if the solution is 48% HF by mass and has a den...

A: Given percentage by mass HF = 48℅ density of solution = 1.17 g/ml

Q: what medium will lidocaine be absorbed?

A: Since polar solvent dissolves polar solutes and non-polar solvent dissolves non-polar solutes.

Q: How many molecules of C2H6 are there in 21.4 g of C2H6?

A: Given that, 21.4 g of ethane, C2H6. We have to calculate the number of molecules in it.

Q: If 2.80 g of Al,0, (FW = 102) is collected following the reaction of 2.50 g of Al in excess O, what ...

A: Given:  Mass of Al = 2.50 g Mass of Al2O3 = 2.80 g The formula weight of Al2O3 = 102 g/mol Standar...

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A: Chemical kinetics can be defined as the branch of chemistry that deals with rates of chemical reacti...

Q: Suppose that A and B react to form C according to the equation below. A + 2 B=C What are the equilib...

A: Given reaction is :  A + 2B <-----------> C  Initial moles of A = 2.0 mole  Initial moles of B...

Q: Using the data in the table, calculate the rate constant of this reaction.   A+B⟶C+DA+B⟶C+D   Tri...

A: Order of reactions is sum of power of exponents to which molar concentration terms are raised in the...

Q: For the following reaction , the rate constant at 373 K i s 0.69856 min-1 . 1. Find the order of th...

A: Introduction: The order of the reaction can be determined from the unit of the rate constant. We hav...

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Q: 1. Using arrow formalism, show how the McLafferty rearrangement might occur in PHCOCH2CH2CH3. What v...

A: McLafferty rearrange is a characteristic fragmentation of carbonyl compound in mass spectroscopy. fo...

Q: ) the loss of an alpha particle by Thorium-232 j) the loss of a beta particle by Iodine-135

A: Nuclear chemistry can be defined as the branch of chemistry that deals with radioactivity, nuclear r...

Q: 5. A 300.0 mg sample containing Na,CO3, NaHCO3 and NaOH and inert material either alone or in some c...

A: Introduction :  It is given that sample which containing Na2CO3 , NaHCO3 and NaOH and are some inert...

Q: Calculate the pH and the concentrations of all species halfway to the first equivalent point in the ...

A: pH is the measure of acidity of a solution. It is defined as negative logarithm (to base 10) of hydr...

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A: The reaction in which the rate of reaction depends on two concentration terms are second order react...

Q: Question: 1, Based on Beer-Lambert law, A = ɛ. c. L, where A, absorbance; ɛ, extinction coefficient;...

A:

Q: Enter your answer in the box provided. What is the molality of a solution consisting of 56.1 mL of b...

A: Molality (m) :-  The number of moles of solute dissolved in 1 kg of solvent is defined as molality  ...

Q: Difference between minor and major constituent

A: A question based on solution that is to be accomplished.

Q: How do you prepare 10% sodium dodecyl sulfate (SDS)  5M NaCl?

A: The answer to the following question is-

Q: 2. The full structural formulae of three organic compounds, P, Q and R, are shown below. H H H H HH ...

A: Isomers are those which have same molecular formula but different arrangement of atoms and molecules...

Q: Complete the table below. Be sure each of your answer entries has the correct number of significant ...

A: The data given is,

Q: 1. Match Letter with appropriate functional group -E A C Hydroxyl: Sulfhydryl: Carbonyl: Carboxylic ...

A: We have to determine the functional groups. Hydroxyl: -OH group is called a hydroxyl group. Sulfhyd...

Q: For the reaction A2 (aq) + B2 (aq) - 2 AB (ag) The initial rate of appearance of AB was 3.0 M/s. Wha...

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Q: 2. A sample of material contains for its active components NaOH, NazCO3, NaHCO3, or compatible mixtu...

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Q: If you blow carbon dioxide gas into a solution of calcium hydroxide, a milky-white precipitate of ca...

A: When we blow carbon dioxide gas into a solution of calcium hydroxide, a milky-white precipitate of c...

Q: The density of methanol, a colorless organic liquid used as solvent, is 0.7918 g/mL. Calculate the m...

A: Given density = 0.7918 g/mL.

Q: the following data were obtained: [HI], M seconds 2.46 1.23 0.615 0.308 408 1.22x103 2.85x103 Hint: ...

A: The Half-life of the reaction is the time required to be the concentration half of the initial conce...

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A: 1) Each atom has a nucleus made up of protons and neutrons.       2) In atoms, the number of protons...

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A: In order to determine the limiting reagent we have to see the amount of reactant present in lesser m...

Q: The reaction shown below is first order with respect to Fe when excess SCN" is present. The rate con...

A:

Q: Name the following compounds! HCN(9) HF(ag) HCIO, (ag) HNO3 (aq)

A: The compounds given are HCN, HF, HClO4 and HNO3.      

Q: Why does aluminum, which has less mass than magnesium, produce approximately the same amount of hydr...

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Micelles and Biological Membrane

Micelles are the type of lipid molecules that organize themselves in spherical shape in aqueous solutions. The production of the micelle is a reply to the amphipathic behavior of fatty acids. It means that they consist of both hydrophobic regions and hydrophilic regions. In micelles, polar head groups (hydrophilic groups) produce an outer layer associated with water whereas nonpolar tails (hydrophobic groups) are organized in the interior.