Equations

Question 1

Moles

Answer 1

Mass of sample / molar mass

Question 2

Ideal Gas Law

Answer 2

PV = nRT

Question 3

Gibbs Free Energy

Answer 3

delta G = delta H - T (delta S)

Question 4

Molarity

Answer 4

of mol of solute / liter of solution

Question 5

Molality

Answer 5

of mol of solute / kg of solvent

Question 6

Average Velocity (m/s)

Answer 6

v = displacement (delta x) / delta t

Question 7

Acceleration (m/s^2)

Answer 7

a = delta v / delta t

Question 8

Power

Answer 8

P = W/ delta t

Question 9

Kinetic Energy

Answer 9

K = 1/2mv^2

Question 10

Specific Heat Capacity

Answer 10

Q = mc delta T (looks like MCAT)

Question 11

Current

Answer 11

I = Q / delta t

Question 12

Density (p)

Answer 12

p = m/v (kg/m^3)

Question 13

Weight

Answer 13

pgV

Question 14

Specific Gravity

Answer 14

p substance/p water

Question 15

Wave Formulas

Answer 15

f = 1/T v = f(wavelength)

Question 16

Intensity (W/m^2)

Answer 16

(I) = P/A

Question 17

Sound Level (dB)

Answer 17

(B) = 10log (I/10)

Question 18

Speed of Light (c)

Answer 18

3 x 10^8 m/s

Question 19

Refraction

Answer 19

n = c/v

Question 20

Newton’s Second Law

Answer 20

F = ma

Question 21

Potential Energy

Answer 21

U = mgh

Question 22

Gravity #

Answer 22

For MCAT ~10 m/s^2 (9.80665)

Question 23

Planck’s Constant (h)

Answer 23

For MCAT ~7 J.s (6.62607015)

Question 25

1st Law of Thermodynamics

Answer 25

delta U = Q - W

U = internal energy all of a system
Q = heat
W = work

Question 26

Kelvin

Answer 26

K = C + 273

Question 27

Work

Answer 27

W = F d

-W = done ON gas)
+W = done BY gas