Examlex
At 20°C, a 3.54 M aqueous solution of ammonium chloride has a density of 1.0512 g/mL. What is the mass % of ammonium chloride in the solution? The formula weight of NH4Cl is 53.50 g/mol.
Wicked Problems
Large, complex social problems where there is no clear solution; where there is limited, confusing, or contradictory information available; and where a whole range of people with conflicting values engage in debate.
Overpopulation
A condition where an environment's population exceeds the carrying capacity, often leading to environmental degradation and resource depletion.
Life Expectancy
The average period that an individual is expected to live, based on demographic factors such as age, sex, and health conditions.
Earned-Income Activities
The sale of products or services that are used as a source of revenue generation.
Q1: The K<sub>p</sub><sub> </sub>for the reaction below is
Q4: A tank containing both HF and HBr
Q10: Calculate the pH of a buffer that
Q37: The vapor pressure of any substance at
Q56: At 900 K, the equilibrium constant (K<sub>p</sub>)
Q67: Show how a molecule of C<sub>2</sub>F<sub>2</sub>Cl<sub>2</sub><sub> </sub>can
Q71: The kinetics of the reaction below were
Q83: The number with the most significant zeros
Q92: The simplest amino acid is glycine.
Q106: A certain liquid has a density of