Answers by DeloresKuhn6

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What are the products of the thermal decomposition of calcium carbonate (CaCO3)?

answered Feb 22 in Chemical reactions

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What is the most efficient method for preparing p-nitroaniline from aniline and nitric acid, and what factors affect the yield and purity of the final product?

answered Feb 21 in Chemical synthesis

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39 views

How does the light intensity affect the rate of photochemical reactions in the presence of a specific photosensitive molecule?

answered Feb 20 in PhotoChemistry

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66 views

How can we improve the transparency and refractive index of glasses for optical applications?

answered Feb 13 in Materials Chemistry

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What are the electronic properties of graphene that make it a promising material for use in electronic devices?

answered Feb 13 in Materials Chemistry

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How can we design new drugs that target cancer cells specifically, without harming normal healthy cells?

answered Feb 12 in Medicinal Chemistry

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Calculate the standard enthalpy change (ΔH°) for the following reaction at 298 K:2SO₂(g) + O₂(g) → 2SO₃(g)given the following standard enthalpy of formation values:ΔH°f (SO₂(g)) = -296.8 kJ/molΔH°f (O₂(g)) = 0 kJ/molΔH°f (SO₃(g)) = -395.7 kJ/mol

answered Feb 3 in Chemical thermodynamics

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Calculate the polarization of a cell having an anode made of copper metal immersed in a 1.0 M Cu(NO3)2 solution and a cathode made of silver metal in a 1.0 M AgNO3 solution. Given that the potential of the copper electrode is -0.34 V and that of the silver electrode is 0.80 V. Also, assume that the current density is 0.1 A/cm² and that the temperature is 298 K.

answered Feb 3 in ElectroChemistry

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What are the specific photochemical properties responsible for the bioluminescence exhibited by organisms such as fireflies, jellyfish, and bacteria, and how can this knowledge be applied in the synthesis of new luminescent molecules for various applications?

answered Jan 31 in PhotoChemistry

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76 views

How does a change in pH affect the equilibrium position of a reaction between a weak acid and its conjugate base?

answered Jan 30 in Chemical equilibrium

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56 views

Calculate the heat of neutralization for the reaction of 50 mL of 2.0 M hydrochloric acid and 50 mL of 2.0 M sodium hydroxide. The specific heat capacity of the solution is 4.18 J/g°C and the temperature change is 10°C.

answered Jan 23 in ThermoChemistry

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Calculate the formal charge of nitrogen in the molecule NO3-.

answered Jan 23 in Chemical bonding

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Calculate the corrosion potential for an iron electrode in a galvanic couple with a standard hydrogen electrode at 25°C if the concentration of Fe2+ ion is 0.05 M and pH is 7.

answered Jan 23 in ElectroChemistry

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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.

answered Jan 22 in Chemical engineering

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When engaging with communities, what is the term for the process of giving up power in order to work more collaboratively?

answered Jan 20 in Psychology

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How can prejudice reduction be achieved through contact?

answered Jan 17 in Psychology

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Please compare the cognitive and behavioural symptoms of depression.

answered Jan 17 in Psychology

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99 views

What is the situational approach to leadership?

answered Jan 16 in Psychology

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68 views

What is the relationship between correlation and reliability?

answered Jan 15 in Psychology

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84 views

What is a common fear associated with OCD?

answered Jan 15 in Psychology

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