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How does stereotype threat impact behaviour?

asked Jan 20 in Psychology by CorrineHampt (2.4k points)

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1 answer 71 views

A student wants to determine the ionization constant of a weak acid. They use the initial concentration and the pH of the solution at a given temperature to calculate the ionization constant. Given that the temperature of the solution is changed by 10°C, how will this affect the ionization constant of the weak acid? Calculate the new ionization constant at the new temperature assuming that no additional acid or base is added to the solution.

asked Jan 22 in Chemical equilibrium by Lori71654888 (2.0k points)

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1 answer 86 views

A chemical engineer needs to separate a mixture of ethanol and water using a distillation column. The feed to the column has 30 mol% ethanol and 70 mol% water, and the desired distillate composition is 95 mol% ethanol. The feed rate is 100 kmol/hour and the reflux ratio is 2. Calculate the number of theoretical trays required in the column to achieve the desired distillate composition.

asked Jan 22 in Chemical engineering by Francisca504 (1.9k points)

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1 answer 71 views

A student wanted to determine the Faraday constant using the electrolysis of silver nitrate solution. If a current of 2.5 amperes flowed through the solution for 2 hours and 30 minutes, and 0.508 grams of silver were deposited on the cathode, what is the value of the Faraday constant?

asked Jan 22 in ElectroChemistry by AbbieGladden (2.1k points)

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1 answer 120 views

What is the correct IUPAC name of the following organic compound: CH3-CH2-CH(CH3)-CH2-Br?

asked Jan 21 in Organic Chemistry by CarrieMadiso (1.8k points)

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1 answer 83 views

A chemistry student is conducting an experiment in a closed container where nitrogen dioxide is being converted into nitrogen oxide and oxygen gas. If the student increases the concentration of the nitrogen dioxide in the container, how will it affect the equilibrium position of the reaction and what can be done to restore the equilibrium position? Use Le Chatelier's principle to explain your answer.

asked Jan 22 in Chemical reactions by SaraNis63941 (1.4k points)

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1 answer 115 views

What is the mechanism and product produced when 2-methylbut-2-ene undergoes a Wagner-Meerwein rearrangement reaction in the presence of concentrated sulfuric acid?

asked Jan 21 in Organic Chemistry by ZaraEnderby5 (2.1k points)

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1 answer 27 views

Calculate the heat capacity of 25 grams of aluminum if it was heated from 25°C to 100°C and absorbed 750 Joules of heat energy.

asked Jan 23 in Chemical thermodynamics by WilheminaMea (1.5k points)

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1 answer 70 views

A student wants to calculate the standard cell potential for a galvanic cell that consists of a silver electrode and a copper electrode. The silver electrode has a silver ion concentration of 0.05 M and the copper electrode has a copper ion concentration of 0.1 M. What is the standard cell potential for this cell?

asked Jan 22 in Physical Chemistry by CorrinePerre (2.1k points)

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1 answer 155 views

Where was the first study on acceptance and commitment therapy ACT conducted?

asked Jan 20 in Psychology by EusebiaGilla (1.8k points)

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1 answer 116 views

Identify the functional group present in the compound C6H5CHO and name the reaction(s) it undergoes when treated with HCN.

asked Jan 21 in Organic Chemistry by XGJSidney76 (1.4k points)

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1 answer 85 views

A beaker containing 1L of water is divided into two equal compartments by a semi-permeable membrane. One side of the membrane has 1M NaCl solution and the other side is pure water. Determine the time taken for the concentration of NaCl on both sides of the membrane to become equal through diffusion. Given: Molecular weight of NaCl is 58.44 g/mol, and diffusion coefficient of NaCl in water is 1.6 x 10^-9 m^2/s.

asked Jan 22 in Physical Chemistry by CarissaNevil (1.8k points)

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1 answer 74 views

A steel pipe is connected to a copper pipe in a galvanic corrosion couple where the electrolyte is seawater. The corrosion current density of the steel pipe is 3.2 mA/cm2. If the surface area of the steel pipe is 5 cm2, calculate the total amount of charge transferred per hour. Also, calculate the weight loss of the steel pipe per year due to galvanic corrosion, assuming the density of steel is 7.85 g/cm3.

asked Jan 22 in ElectroChemistry by Aline0805519 (1.8k points)

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1 answer 68 views

Balance the following chemical equation: Fe2O3 + CO -> Fe + CO2

asked Jan 22 in Chemical reactions by LinneaMacaul (2.2k points)

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1 answer 70 views

A student performs a chemical reaction in which the theoretical yield of a particular product is 25 grams. After carrying out the reaction, the student recovers only 18 grams of the product. What is the percent yield of the reaction?

asked Jan 22 in Chemical reactions by Melanie86K41 (1.7k points)

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1 answer 68 views

At 25°C, an electrochemical cell consists of a silver electrode in a 0.010 M AgNO3 solution and a platinum electrode in a 1.0 x 10^-3 M HCl solution. Calculate the resistance of the cell if the distance between the two electrodes is 2.0 cm and the area of each electrode is 5.0 cm^2.

asked Jan 22 in ElectroChemistry by REHJon915716 (1.9k points)

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1 answer 85 views

How does the coordination chemistry of metalloenzymes and metalloproteins contribute to their functionality in biological processes?

asked Jan 22 in Coordination Chemistry by SarahWeston5 (2.0k points)

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1 answer 85 views

How do the coordination chemistry principles of chelation therapy contribute to the removal of toxic metal ions from the human body?

asked Jan 22 in Coordination Chemistry by BradyBassett (2.0k points)

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1 answer 107 views

Who developed the Mindfulness-Based Cognitive Therapy MBCT and what were its main assumptions?

asked Jan 20 in Psychology by MalcolmUribe (2.0k points)

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1 answer 162 views

Why is understanding sexual orientation fluidity important in psychology?

asked Jan 20 in Psychology by MarilouBinga (2.4k points)

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