Recent activity by ChetChadwick

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Determine the standard enthalpy of formation of nitrogen dioxide (NO2) given that the balanced equation for the combustion of one mole of NO2 is:4NO2(g) + 6H2O(l) → 4HNO3(aq) + 2NO(g)The standard enthalpies of formation for HNO3(l), H2O(l), and NO(g) are -174.1 kJ/mol, -285.8 kJ/mol, and 90.4 kJ/mol, respectively.

answered 1 day ago in Chemical thermodynamics

1 answer 39 views

Identify the type of bonding in calcium chloride and justify your answer with specific characteristics of the compound.

asked 5 days ago in Inorganic Chemistry

1 answer 46 views

Calculate the heat capacity of 10 grams of water if the temperature of the water increases by 5°C upon absorption of 200 Joules of heat.

answered Jan 23 in Chemical thermodynamics

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A sample of a compound was analyzed and found to contain 52.35 % iron, 13.82 % sulfur, and 33.83 % oxygen by mass. Determine the empirical formula of the compound.

answered Jan 22 in Inorganic Chemistry

1 answer 7 views

A reaction mixture initially contained 0.1 mol/L of reactant A and 0.2 mol/L of reactant B. When a catalyst was added, the rate of conversion of A and B to the product increased significantly. Calculate the new equilibrium concentration of reactant B if the equilibrium constant of the reaction is 0.1 and the initial equilibrium concentration of the product is 0.05 mol/L. Assume that the catalyst does not change the equilibrium constant.

answered Jan 22 in Chemical equilibrium

1 answer 22 views

Where might a feminist psychologist look for the cause of gender-based violence?

answered Jan 17 in Psychology

1 answer 18 views

How can multiple hypotheses be tested at once?

asked Jan 15 in Psychology

1 answer 24 views

Which water from the equator mixes with cold water from the poles?

answered Jan 8 in Science

1 answer 30 views

Where do most cnidarians live?

answered Jan 8 in Science

1 answer 22 views

What are the primary cells of adaptive immune response?

answered Jan 6 in Science

1 answer 10 views

Phototrophic organisms capture light energy from the sun and convert it into what type of energy inside their cells?

answered Dec 31, 2024 in Science

1 answer 18 views

Arteries have thinner wall layers and valves and move blood by the action of skeletal what?

asked Dec 30, 2024 in Science

1 answer 30 views

The force that pulls objects toward the earth is what?

asked Dec 27, 2024 in Science

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