Answers by ChetChadwick

0 votes

34 views

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

0 votes

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

0 votes

52 views

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

0 votes

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

0 votes

22 views

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

answered Jan 17 in Psychology

0 votes

24 views

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

answered Jan 8 in Science

0 votes

30 views

Where do most cnidarians live?

answered Jan 8 in Science

0 votes

22 views

What are the primary cells of adaptive immune response?

answered Jan 6 in Science

0 votes

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

...