A buffer solution is made using a weak acid, ha. if the ph of the buffer is 4 and the ratio of a - to ha is 0.001, what is the pka of ha?

When do exceptions to the octet rule occur

The charged particles that are not deflected by the magnetosphere become the charged particles stored in the ___ Van Allen radiation belts Aurora Borealis Aurora Australis Earth's magnetic field

What will atoms with fewer than 8 electrons in their outermost shell do to become stable?

When the temperature of a gas in a rigid container decreases, the particles of the gas move slower and experience fewer collisions with each other and the container walls.

What is the type of bond with ΔEN=1.7? Ionic or polar covalent?

Car Q and z are put though an endurance test to see if they can travel at 120 km/h for 5.0 hours. Each car has a 45-L fuel tank. Car z must stop to refuel after traveling for 4.2 hours. Car Q, however, travels for 5.4 hours before running out of gas.

What happened to the atoms in the heated metal ball so that it didn't fit through the ring?

A 3.00 L flexible container holds a sample of hydrogen gas at 153 kPa. If the pressure increases to 203 kPa and the temperature remains constant, what will the volume be?

Measurement of the functions of a nephron reveals a glomerular capillary pressure of 69 mm Hg, and a pressure in the capsular space of 15 mm Hg.

Water is unique because the density of it's solid is less than the density of it's liquid. Describe how life would be different if this weren't true