A solution of ammonia has a pH of 11.8. What is the concentration of OH - ions in the solution?

How is the process of respiration and photosynthesis represent the "Law of Conservation of Mass"?

An industrial process makes calcium oxide by decomposing calcium carbonate. Which of the following is NOT needed to calculate the mass of calcium oxide that can be produced from 4.7 kg of calcium carbonate

The amount of protein in a sample was measured by the sample's absorbance of light at a given wavelength. Using standards, a best fit line (calibration curve) of absorbance (y-axes) vs. mg protein (x-axes) gave a slope of 0.

Express your views on how the law, the citizens and community can protect and support victims of human rights violations

What is the increasing atomic radii and increasing electronegativity of the following elements: Ne, Mg, Si, Zn, Ge, Se, Nb, Sb, Xe, Cs, Eu, Bi, Fr, Ra, and Cf

O2 + CS2 → CO2 + SO2 Which of the following shows the equation balanced?

Convert 970. mm Hg to atm.

The addition of a catalyst in a chemical reaction (A) increases the concentration of products at equilibrium. (B) increases the fraction of reactant molecules with a given kinetic energy.

Is fire hot or cold?

In Flask A, you reacted 7.23 g Mg with 1.05 mol HCl. In Flask B, you reacted 1.22 g Mg with 1.35 mol HCl. Which balloon will inflate the most?