Recent activity by SenaidaDelac

1 answer 36 views

What is the effect of increasing pressure on the rate of the reaction between hydrogen gas and iodine gas to form hydrogen iodide gas?

answered Feb 22 in Chemical kinetics

1 answer 24 views

How does the presence of an intermediate in a chemical reaction affect the rate of the reaction? Provide specific examples and a detailed explanation of the mechanisms involved.

asked Feb 22 in Chemical kinetics

1 answer 31 views

What is the predicted geometry and polarity of the inorganic molecule SF6?

answered Feb 22 in Inorganic Chemistry

1 answer 24 views

How does the pH level affect the rate of the photochemical reaction between a photosensitizer and a substrate?

asked Feb 22 in PhotoChemistry

1 answer 31 views

How does the intensity of light affect the reaction rate of the chemical reaction between potassium permanganate and oxalic acid in acidic medium?

asked Feb 20 in Chemical kinetics

1 answer 30 views

How does the inhibition of the enzyme phosphofructokinase (PFK) affect the glycolytic pathway and ultimately the production of ATP in muscle cells during exercise?

asked Feb 20 in BioChemistry

1 answer 30 views

What is the critical micelle concentration (CMC) of sodium dodecyl sulfate (SDS) in water at 25°C, given that the molar mass of SDS is 288.4 g/mol and its molecular formula is C12H25NaO4S? Also, explain the mechanism of micelle formation in this process.

asked Feb 19 in Surface Chemistry

1 answer 26 views

What is the balanced chemical equation for the preparation of 2,4-dichloronitrobenzene from nitrobenzene and chlorine gas, and what is the theoretical yield of 2,4-dichloronitrobenzene if 10 grams of nitrobenzene and an excess of chlorine gas are reacted?

asked Feb 17 in Chemical synthesis

1 answer 32 views

What is the difference between primary, secondary, and tertiary alcohols, and how can it be determined from their chemical structure and reactions? Provide examples for each type of alcohol and explain their properties and reactivity.

answered Feb 14 in Organic Chemistry

1 answer 39 views

What are the optimum reaction conditions for synthesizing polyacrylonitrile from acrylonitrile monomer?

answered Feb 14 in Chemical synthesis

1 answer 35 views

How does metal substitution affect the optical properties of metalloporphyrins and metallophthalocyanines studied for potential application in photovoltaic devices?

answered Feb 13 in Coordination Chemistry

1 answer 57 views

What type of bonding is present in solid sodium chloride (NaCl)? Is it ionic, covalent, or metallic? Provide a detailed explanation supporting your answer.

asked Feb 13 in Chemical bonding

1 answer 57 views

What are the methods for improving the efficiency of light emission in polymer-based optical materials?

asked Feb 13 in Polymer Chemistry

1 answer 69 views

How does the excess use of fertilizers in agriculture contribute to nitrogen and phosphorus pollution in water bodies and what are the potential harmful effects on aquatic life and human health?

asked Feb 13 in Environmental Chemistry

1 answer 64 views

Calculate the standard enthalpy change of the reaction between hydrogen gas and chlorine gas to form hydrogen chloride gas using the bond enthalpy values for H-H, Cl-Cl and H-Cl bonds.

asked Feb 3 in Quantum Chemistry

1 answer 108 views

Identify the major functional groups present in the biomolecule adenosine triphosphate (ATP) and explain their role in the biochemical reactions.

answered Jan 30 in Organic Chemistry

1 answer 95 views

What innovative approaches can be used to improve the synthesis of metal-organic frameworks (MOFs) while minimizing waste and utilizing sustainable practices in order to optimize their potential applications in the fields of gas storage, catalysis, and drug delivery?

answered Jan 30 in Materials Chemistry

1 answer 95 views

Calculate the enthalpy change for the dissolution of 10g of NaCl in 100g of water, given that the initial and final temperatures are 25°C and 20°C respectively. The molar mass of NaCl is 58.44 g/mol and the specific heat capacity of water is 4.18 J/(g°C).

asked Jan 23 in ThermoChemistry

1 answer 76 views

A chemistry student is studying the adsorption of a gas on a solid surface using the Langmuir adsorption isotherm. The student knows that the maximum adsorption capacity (θ_max) of the surface is 0.5 mol/L and that the equilibrium constant (K) for the process is 0.02 L/mol. The student is asked to calculate the fraction of the surface covered by the adsorbate when the gas pressure is 2 atm at the temperature of the experiment.

asked Jan 22 in Surface Chemistry

1 answer 98 views

A chemistry experiment was conducted to determine the rate constant for the reaction between hydrogen peroxide and iodide ion in acidic medium. The initial concentrations of hydrogen peroxide and iodide ion were 0.2 M and 0.1 M respectively. The reaction was carried out at 25°C and the time taken for the completion of the reaction was 60 seconds. Based on these data, what is the rate constant for the reaction?

asked Jan 22 in Chemical kinetics

Recent activity by SenaidaDelac

Categories