Indicate the effect (increases, decreases, or stays the same) that each of the following changes will have on the retention time of a compound: a) Decreases the velocity of the carrier gas flow: b) Increase the temperature of the column: c) Increase the length of the column:

Q: (Q11) lodic acid (HIO3) is a relatively strong weak acid (Ka = 0.17). What will be the equilibrium p...

A:

Q: Consider the following data on some weak acids and weak bases: acid base K. K, name formula name for...

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Q: The heat gained by the solution in  reaction two is 5.3 kJ. how many moles of NaOH were consumed ? ...

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Q: the temperature of a gas decreases, it can be concluded that the volume of the gas will- stay the sa...

A:

Q: СООН 12 2 1

A: Answer of this question :- 

Q: Ammonium phosphate ((NH,), PO,) is an important ingredient in many fertilizers. It can be made by re...

A:

Q: What is the pH of a 0.350 M aqueous solution of methylammonium chloride, C5H5NHBr? The Kb of puridin...

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Q: Identify the electrophilic centres in the following molecule: 1. 2 3 8 Type numbers of all of the el...

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Q: What is the % of water in magnesium sulfate heptahydrate

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Q: At a particular temperature, Kp = 0.270 for the reaction N204(g) = 2NO2(g) A flask containing only N...

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Q: What happens to the pH of a buffer when a strong acid is added? O It increases greatly O It decrease...

A: Answer of the question given below, 

Q: Use an Arrhenius plot to determine the activation barrier for the reaction.

A: Given ; temperatures and value of rate constants. 

Q: What is the kinetic energy, in joules per mole (J/mol), of a sample of nitrogen molecules at 25.0 ºC...

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Q: 10) Determine the Ka of a 0.86 M solution of Hydrofluoric acid, HF that is 1.72% ionized at 25 °C. W...

A: Given, Concentration of HF = 0.86 M % ionisation = 1.72 %

Q: Complete the following table. Round each of your answers to 3 significant digits. energy content whe...

A: 1 kcal = 1000 cal  1 kcal = 4.184 kJ 

Q: Draw the structüre ire Draw a tiration curve for acetic acid if the pK, is 4.76. Use the attached gr...

A: a) Answer - According to the question - Structure of acetic acid - Acetic acid is an organic compoun...

Q: calculate the change in energy of light which is emitted when an electron falls from the 5th to the ...

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Q: Identify the conjugate acid in the following reaction. e SO (aq) Lišteh + NH (aq) HSO3 (aq) + NH3 (a...

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Q: A noble gas has a density of 14.5 g/L at 2.7 atm and 25°C. Identify the gas.

A: Given :  density of gas = 14.5 g/L  temperature = 25°C  pressure = 2.7 atm   To determine :-  identi...

Q: If 2.56g of argon gas occupies a volume of 4.2 L, what volume will 1.18 moles or argon gas occupy un...

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Q: question. According to Boyle's Law, if you were to double the volume of a gas, what would you expect...

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Q: • Part A Silver can be electroplated at the cathode of an electrolysis cell by the half-reaction: Ag...

A: According to the first law of Faraday, the mass of a metal deposited on the anode during electrolysi...

Q: Melatforty Raarangeme what aee enl & on itablo eromk'les im each care.

A: mass spectrometry

Q: 12.) Fuel engineers use the extent of the change from CO and H20 to CO2 and H2 to regulate the propo...

A: Given reaction: CO (g) + H2O(g) ⇌ CO2(g) + H2(g) Given, Kc = 1.56  The initial moles of CO = 0.250 m...

Q: The cell: SCE//HA(0.250M), NaA(0.170M)/H2(1.00bar), Pt has a poten- tial of -0.721V at 298K. (The SC...

A: Given cell: 

Q: As the pka of an acid increases, the acid will be: O Stronger O Weaker O Converted to basic solution...

A:

Q: Which of the following conditions would be consistent to produce a buffer? Strong acid and a strong ...

A: Here, we have to find the condition that is consistent to produce a buffer.  

Q: (Q12) Hydrazoic acid (HN3) is a weak acid with a Ka of 2.5 x 10-5. What will be the equilibrium pH o...

A:

Q: What is the pH of a 0.036 M aqueous solution of sodium cyanide, NaCN? The Ka of HCN is 4.9x10-10. Yo...

A: the pH of a 0.036 M aqueous solution of sodium cyanide can be calculated as follows

Q: Why are alcohols typically poor electrophiles?

A: electrophile means the species which are electron deficient.

Q: 150.0 mL of 0.300 mol/L KOH is added to 150.0 mL of 0.300 mol/L HF. The resulting neutralization rea...

A:

Q: A weather balloon calibrated at 0.00 °C to have a volume of 20.0 L has what volume in L at -14.1 °C ...

A: Given ; values of volume and temperature. 

Q: A 0.231 g piece of solid magnesium reacts with gaseous oxygen from the atmosphere to form solid magn...

A: Given,  0.231 g piece of solid magnesium reacts with gaseous oxygen from the atmosphere to form soli...

Q: A student ran the following reaction in the laboratory at 244 K: 2NOBr(g) =2NO(g) + Br2(g) When she ...

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Q: What is the molarity of a solution prepared using the given amount of solute and total volume of sol...

A: Given, the compositions of the solutions: a. 25.0 g of KCl in 630 mL of solution b. 11.0 g of Na2CO3...

Q: Answer in full sentence: In the reaction hydrogen peroxide + manganese(iv) oxide--> Manganese oxide...

A: The natural decomposition of hydrogen peroxide is very slow. Manganese(iv)oxide is added to catalyze...

Q: A student ran the following reaction in the laboratory at 281 K: 2 CH2CI2 (g) = CH4 (g) + CCl4 (g) W...

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Q: Identify each reaction below as one of the following: addition, elimination, condensation, substitut...

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Q: Ammonia (NH,) chemically reacts with oxygen gas (0,) to produce nitric oxide (NO) and water (H,O). W...

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Q: Calculate the pH at 25 °C of a 0.69M solution of potassium butanoate (KC,H,CO,). Note that butanoic ...

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Q: In joules, how much heat is released when 40.0 g of Ag cools from 191. degrees C to 129. degrees C? ...

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Q: rocedure: 1. Place separately in clean test tubes five drops of acetone and acetaldehyde 2. To both...

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Q: What is the pH of a 1L solution containing 10 mls of 0.5 M acetic acid and 5 mls of 2 M sodium aceta...

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Q: The equilibrium constant, Ke, for the following reaction is 7.32 at 730 K. 2NH3(g) N2(g) + 3H2(g) Ca...

A: Kc is the equilibrium constant in terms of concentration. It is ratio of equilibrium concentration o...

Q: When a 27.4 mL sample of a 0.492 M aqueous hydrofluoric acid solution is titrated with a 0.412 M aqu...

A: When we add NaOH solution to HF solution first base will neutralize acid present in solution, excess...

Q: Solid ammonium chloride, NH,CI, is formed by the reaction of gaseous ammonia, NH,, and hydrogen chlo...

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Q: 1) A weak monoprotic acid has a Ka of 5.6 X 10$. Determine the pH, pOH, and the concentration of all...

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Q: Part B Use an Arhenius plot to determine the frequency factor for the reaction. Express your answer ...

A: Given ; activation energy = 83.6 kj/mol

Q: ta particular temperature, K = 1.00x102 for the reaction: H2(g) + F2(g)= 2HF(g) n an experiment, at ...

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Q: Determine the K, for iron(IIl) hydroxide if it has a molar solubility of 1.3 x 10^-10 mol/L. at 25 °...

A: The dissociation of iron(III) hydroxide is given by following equation Fe(OH)3 →Fe3+  +  3OH-

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.