FREE MCAT AND STUDY GAMES ABOUT MCAT EQUATIONS

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FREE MCAT AND STUDY GAMES ABOUT MCAT EQUATIONS

EXAM QUESTIONS

Actual Qs and Ans Expert-Verified Explanation

This Exam contains:

-Guarantee passing score -36 Questions and Answers -format set of multiple-choice -Expert-Verified Explanation

Question 1: What is the Magnetic Quantum number?

Answer:

(m1) is the orbital within a subunit where an electron is likely to be found at a given moment in time m1= -l -> +l cant be l

Question 2: How many bonds are in a tetrahedral arrangement?

Answer:

4

Question 3: What is the Atomic mass unit?

Answer:

1.66* 10^23

Question 4: How many bonds are in a trigonal planar arrangement?

Answer:

3

Question 5: What is the Atomic number?

Answer:

(Z) the number of protons

Question 6: How many bonds are in a octahedral arrangement?

Answer:

6

Question 7: What is ionization energy

Answer:

(IE) energy required to remove an electron from a gaseous atom or ion

Question 8: What are dipole-dipole interactions?

Answer:

they occur when the positive region of one molecule is close to the negative region of another molecule

Question 9: What is normality?

Answer:

The measure of concentration = equivalents / liter

Question 10: What is the Heisenberg uncertainty principle?

Answer:

It is impossible to simultaneously determine momentum and position of an electron

Question 11: What is Planck's constant?

Answer:

6.626 * 10 ^ -34 J*s

Question 12: What is Avagadros number?

Answer:

6.022*10^23

Question 13: What is Rydbergs constant?

Answer:

2.18*10^-18 J/electron

Question 14: What is the equation for the angular momentum of an electron?

Answer:

L=nh / 2pi (n=quantum number)

Question 15: What is the equation for molarity?

Answer:

normality / n

Question 16: What is the principle Quantum number?

Answer:

(n) is the energy level and radius of an electrons orbilal

Question 17: What is the equation for gram equivalent weight?

Answer:

molar mass / n (protons, hydroxide ions, electrons, monovalent ions)

Question 18: What is the equation for equivalents?

Answer:

mass of compound (g) / gram equivalent weight (g)

Question 19: What is the spin quantum number?

Answer:

(ms) is the spin orientation; can be -1/2 or +1/2

Question 20: What is the Mass number?

Answer:

(A) the number of protons plus neutrons

Question 21: What is the equation for electromagnetic energy?

Answer:

E=hc / ?(wavelength) c=speed of light in vacuum(3*10^8 m/s) ?=wavelength of the radiation

Question 22: What are dispersion forces/London forces?

Answer:

They are short lived and rapidly shifting dipoles

Question 23: What is the equation for the energy of an emitted photon?

Answer:

E=hc = -Rh [(1/n^2initial) - (1/n^2final)

Question 24: What is the equation for percent composition?

Answer:

(mass of X in formula / formula weight of compound) * 100

Question 25: How many bonds are in a trigonal bipyrimidal arrangement?

Answer:

5

Question 26: What is the empirical formula?

Answer:

It is the simplest whole number ratio of elements in a compound

Question 27: What is a molecular formula?

Answer:

It is the exact number of atoms of each element in the compound

Question 28: What is the equation for the energy of an electron?

Answer:

E= -Rh / N^2 (Rh = Rydberg constant=2.18 *10^-18 J/electron)