Recent activity by MollieBalke

1 answer 20 views

How does the size and shape of nanoparticles affect their photochemical properties? Provide experimental evidence to support your answer.

answered Feb 24 in PhotoChemistry

1 answer 42 views

How does the reaction rate of the decomposition of hydrogen peroxide in the presence of a catalyst vary with increasing pressure?

answered Feb 24 in Chemical kinetics

1 answer 39 views

What is the mechanism and intermediates involved in the reaction of tert-butyl alcohol and hydrochloric acid to produce tert-butyl chloride?

answered Feb 22 in Organic Chemistry

1 answer 25 views

How do different synthetic methods and material compositions affect the performance of catalysts used in fuel cells?

asked Feb 22 in Materials Chemistry

1 answer 34 views

What is the most efficient catalyst system for the synthesis of polypropylene from propylene monomer and how does it affect the properties of the resulting polymer?

asked Feb 21 in Chemical synthesis

1 answer 25 views

How does the dipole moment of water molecule change with the addition of an external electric field as predicted by ab initio calculations?

answered Feb 19 in Computational Chemistry

1 answer 27 views

How does the addition of impurities affect the superconducting properties of YBaCuO materials?

answered Feb 17 in Materials Chemistry

1 answer 32 views

How does the addition of an external magnetic field affect the electronic and magnetic properties of a molecular magnet?

answered Feb 17 in Quantum Chemistry

1 answer 41 views

How can we optimize the production of detergents through the selection of appropriate raw materials and process variables to achieve desired product characteristics, such as surfactant activity and pH levels?

asked Feb 14 in Chemical engineering

1 answer 46 views

What happens to the equilibrium position of a reversible reaction if you add more reactants or products? Use Le Chatelier's principle to explain the answer with appropriate examples.

answered Feb 13 in Chemical reactions

1 answer 64 views

What is the hybridization of the Oxygen atom in the molecule of water (H2O)?

answered Feb 13 in Chemical bonding

1 answer 70 views

Calculate the standard electrode potential for the following reaction: Zn(s) + Cu2+(aq) → Zn2+(aq) + Cu(s) Given that the standard electrode potentials for Zn2+/Zn and Cu2+/Cu are -0.76 V and 0.34 V respectively.

answered Feb 3 in ElectroChemistry

1 answer 100 views

What is the concentration of lead (Pb) in a water sample collected from a river using atomic absorption spectroscopy?

answered Jan 30 in Analytical Chemistry

1 answer 70 views

Calculate the enthalpy of ionization of magnesium if 50 mL of 0.1 M HCl solution is added to 1 g of magnesium powder at 25°C, and the change in temperature is -10°C. The specific heat capacity of the solution is 4.18 J•g-1•K-1.

asked Jan 23 in ThermoChemistry

1 answer 69 views

Calculate the cell potential for the reaction:Hg2Cl2(s) + 2 Cl-(aq) → 2 Hg(l) + 2 Cl2(g)Given the standard reduction potentials: Hg2Cl2(s) + 2 e- → 2 Hg(l) + 2 Cl-(aq) E° = 0.268 VCl2(g) + 2 e- → 2 Cl-(aq) E° = 1.36 V

answered Jan 23 in ElectroChemistry

1 answer 93 views

A student wants to find out the cell potential of a voltaic cell made up of a nickel electrode and an iron electrode. The nickel electrode is in a 0.1 M nickel (II) sulfate solution, and the iron electrode is in a 0.1 M iron (II) sulfate solution. What is the cell potential of this voltaic cell at standard conditions (25°C and 1 atm of pressure) given the standard reduction potentials for Ni2+/Ni and Fe2+/Fe are -0.25 V and -0.44 V, respectively?

answered Jan 22 in ElectroChemistry

1 answer 83 views

What is the oxidation state of the chromium atom in K2Cr2O7, and how did you determine it?

answered Jan 21 in Inorganic Chemistry

1 answer 89 views

What is the product of the following rearrangement reaction? CH3-C(CH3)2-CH2OH → ?

asked Jan 21 in Organic Chemistry

1 answer 78 views

What is the product(s) formed when 1-bromo-2-methylcyclohexane undergoes an E1 mechanism of elimination?

answered Jan 21 in Organic Chemistry

1 answer 47 views

Who discovered the Stroop effect?

asked Jan 20 in Psychology

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