Entrance Exam Semmelweis EXAM LATEST (2025)
COMPLETE QUESTIONS With 100% Verified Solutions,
Electron configuration for cations - (ANSWER)Subtract 1 from exponent of
highest n-value orbital (ex. remove from 4s before 3d)
Ag+ = [Kr]5s^1 4d^9
Electron configuration for anions - (ANSWER)Add 1 to closest orbital
Cl- = [Ne]3s^2 3p^6
Atomic orbitals - (ANSWER)s, p, d, f
Primary vs secondary structures of proteins - (ANSWER)Primary - AA chain (linked
by peptide bonds)
Secondary - stabilized by non-covalent bonds (alpha helices & beta sheets)
Most bonds in organic compounds are - (ANSWER)covalent
Properties of water - (ANSWER)1. polar
2. capable of adhesion and cohesion
3. high heat capacity (so it's hard to raise its temp)
,4. great solvent
5. high heat of vaporization (allows humans to cool off via sweat)
6. water is less dense as a solid than a liquid
Intermolecular forces of water - (ANSWER)hydrogen bonding
Solution components - (ANSWER)1. solvent (product being dissolved)
2. solute (medium for dissolving solvent)
Molarity - (ANSWER)the number of moles of solute per liter of solution
Solubility rules - (ANSWER)SOLUBLE
1. alkali metals (group 1) & NH4+ cations
2. NO3- or CH3COO- anions
3. Cl, Br, I (except when bonded to Ag+, Pb2+ or Hg2+)
4. sulfate ions (except when with Ca2+, Sr2+, Ba2+, Pb2+)
INSOLUBLE
1. Metal oxides (except CaO, SrO, BaO)
2. Hydroxides (except when with Ca2+, Sr2+, Ba2+)
3. Carbonates, phosphates, sulfides, and sulfites (unless bound to alkali metal or
NH4+)
,Solubility product - (ANSWER)Ksp = [A]^a[B]^b
**only products because we don't include solids in the equilibrium expression
for NaCl
- Ksp = x^2
for PbCl2
- Ksp = 4x^3
for Cr(OH)3
- Ksp = 27x^4
Large Ksp means - (ANSWER)strong electrolyte (more soluble)
Strong acids - (ANSWER)So I brought no clean clothes
1. H2SO4
2. HI
3. HBr
4. HNO3
, 5. HCl
6. HClO4
7. HClO3
Strong bases - (ANSWER)1. NaOH
2. LiOH
3. KOH
4. CsOH
5. RbOH
6. Ba(OH)2
7. Ca(OH)2
8. Sr(OH)2
Bases can certainly look pleasing (K), really something strong (Na)
Le Chatlier's principle: pressure - (ANSWER)pressure applied (or volume reduced)
--> equilibrium proceeds in direction with fewer moles
pressure removed (or volume increased) --> equilibrium proceeds in direction
with more moles
Le Chatlier's principle: temperature - (ANSWER)increasing temperature
COMPLETE QUESTIONS With 100% Verified Solutions,
Electron configuration for cations - (ANSWER)Subtract 1 from exponent of
highest n-value orbital (ex. remove from 4s before 3d)
Ag+ = [Kr]5s^1 4d^9
Electron configuration for anions - (ANSWER)Add 1 to closest orbital
Cl- = [Ne]3s^2 3p^6
Atomic orbitals - (ANSWER)s, p, d, f
Primary vs secondary structures of proteins - (ANSWER)Primary - AA chain (linked
by peptide bonds)
Secondary - stabilized by non-covalent bonds (alpha helices & beta sheets)
Most bonds in organic compounds are - (ANSWER)covalent
Properties of water - (ANSWER)1. polar
2. capable of adhesion and cohesion
3. high heat capacity (so it's hard to raise its temp)
,4. great solvent
5. high heat of vaporization (allows humans to cool off via sweat)
6. water is less dense as a solid than a liquid
Intermolecular forces of water - (ANSWER)hydrogen bonding
Solution components - (ANSWER)1. solvent (product being dissolved)
2. solute (medium for dissolving solvent)
Molarity - (ANSWER)the number of moles of solute per liter of solution
Solubility rules - (ANSWER)SOLUBLE
1. alkali metals (group 1) & NH4+ cations
2. NO3- or CH3COO- anions
3. Cl, Br, I (except when bonded to Ag+, Pb2+ or Hg2+)
4. sulfate ions (except when with Ca2+, Sr2+, Ba2+, Pb2+)
INSOLUBLE
1. Metal oxides (except CaO, SrO, BaO)
2. Hydroxides (except when with Ca2+, Sr2+, Ba2+)
3. Carbonates, phosphates, sulfides, and sulfites (unless bound to alkali metal or
NH4+)
,Solubility product - (ANSWER)Ksp = [A]^a[B]^b
**only products because we don't include solids in the equilibrium expression
for NaCl
- Ksp = x^2
for PbCl2
- Ksp = 4x^3
for Cr(OH)3
- Ksp = 27x^4
Large Ksp means - (ANSWER)strong electrolyte (more soluble)
Strong acids - (ANSWER)So I brought no clean clothes
1. H2SO4
2. HI
3. HBr
4. HNO3
, 5. HCl
6. HClO4
7. HClO3
Strong bases - (ANSWER)1. NaOH
2. LiOH
3. KOH
4. CsOH
5. RbOH
6. Ba(OH)2
7. Ca(OH)2
8. Sr(OH)2
Bases can certainly look pleasing (K), really something strong (Na)
Le Chatlier's principle: pressure - (ANSWER)pressure applied (or volume reduced)
--> equilibrium proceeds in direction with fewer moles
pressure removed (or volume increased) --> equilibrium proceeds in direction
with more moles
Le Chatlier's principle: temperature - (ANSWER)increasing temperature
