Wk1 Chemistry

Question 1

atomic number

Answer 1

Number of protons

Question 2

4 types of matter

Answer 2

Solids-resist change in shape and volume
Liquids- fluids that exhibit minimal compressibility
Gas- fluids that are compressible and change volume with changes in pressure/temp

Question 3

Atomic theory

Answer 3

Central core-nucleus which contains protons (positive) and neutrons (neutral)
With orbiting electrons (negative)

Question 4

Oncotic pressure

Answer 4

The osmotic pressure exerted by plasma proteins and electrolytes in capillaries to prevent hydrostatic pressure tendency to push water out of capillaries

Question 5

Ficks law

Answer 5

Diffusion is proportional to pressure, membrane solubility and area. Inversely proportional to membrane thickness and molecular weight

Question 6

Henrys law

Answer 6

Pressure of a dissolved gas is equal to the pressure of that gas above the liquid (even though the concentration may change)

Question 7

Grahams law

Answer 7

Rate of effusion is inverse to square root of molecular weight….. small molecules diffuse faster

Question 8

Le Chatelier’s Principle

Answer 8

Everything strives to be in equilibrium

Question 9

Tonicity

Answer 9

How solute concentration impacts cell volume- think isotonic (no change in cell volume)

Question 10

Osmolarity

Answer 10

Number of osmoles per liter of solution

Question 11

Osmole

Answer 11

1 mole of any substance dissolved in water

Question 12

Mole

Answer 12

Cute blind mammal

Amount of a substance- used to convert between mass and number of particles