Recent activity by ZaraCosh496

1 answer 17 views

How can the efficiency of photochemical degradation of pollutants in the environment be increased using photocatalysts?

asked 3 days ago in PhotoChemistry

1 answer 36 views

Determine the standard enthalpy change for the dissolution of 5.00 grams of magnesium chloride in water, given that the molar mass of MgCl2 is 95.21 g/mol and the standard enthalpy change of formation for magnesium chloride is -641.3 kJ/mol.

asked 6 days ago in Chemical thermodynamics

1 answer 36 views

Determine the hybridization of the central atom in the compound XeF6.

answered 6 days ago in Inorganic Chemistry

1 answer 55 views

How do different types of air pollutants, such as particulate matter and ozone, affect respiratory health in humans? Specifically, how can the size and composition of these pollutants influence their impact on the respiratory system, and what are the potential long-term health effects from prolonged exposure to high levels of these pollutants?

answered Jan 31 in Environmental Chemistry

1 answer 49 views

Calculate the enthalpy of solution for dissolving 5 grams of NaCl in 100 mL of water if the final temperature of the solution is 25°C and the initial temperature of the water was 20°C. The enthalpy of fusion of NaCl is -3.0 kJ/mol and the specific heat capacity of the solution is 4.18 J/g°C.

asked Jan 23 in ThermoChemistry

1 answer 46 views

A chemistry student wants to determine the boiling point of a solution of 25 g of glucose in 500 mL of water. Calculate the boiling point of the solution if the boiling point constant of water is 0.512 °C/m and assume an ideal solution.

answered Jan 22 in Physical Chemistry

1 answer 49 views

What is the solubility of Calcium chloride (CaCl2) in distilled water at room temperature?

answered Jan 21 in Inorganic Chemistry

1 answer 9 views

According to the heuristics and biases approach, what are the limitations of human decision-making?

asked Jan 17 in Psychology

1 answer 10 views

According to the cognitive-behavioural model, what is the role of negative thoughts in trauma?

asked Jan 17 in Psychology

1 answer 47 views

What are some criticisms of the humanistic theory of personality?

asked Jan 13 in Psychology

1 answer 61 views

The light-sensing cells in the retina are called rods and what else?

asked Jan 2 in Science

1 answer 29 views

Hotspots can be used to tell the speed and direction that what object is moving?

asked Dec 30, 2024 in Science

1 answer 22 views

Compounds like sodium chloride form structures called what?

answered Dec 30, 2024 in Science

1 answer 24 views

The sequence of bases in a gene translates to the sequence of what protein components?

answered Dec 27, 2024 in Science

1 answer 45 views

What are typically arranged into complex tubular networks with extensive surface areas?

asked Dec 27, 2024 in Science

1 answer 32 views

What two types of communication do both humans and birds use primarily?

answered Dec 27, 2024 in Science

1 answer 39 views

What kind of organism causes the often fatal lung disease tuberculosis?

asked Dec 27, 2024 in Science

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