SEMMELWEIS ENTRANCE EXAM 2025 QUESTIONS WITH
SOLUTIONS GUARANTEE A+
✔✔pH formula - ✔✔pH=-log[H+]
✔✔pH definition - ✔✔measure of hydrogen ion concentration
✔✔Strong acids - ✔✔HCl, HBr, HI, HNO3, H2SO4, HClO4
✔✔Weak acids - ✔✔H2SO3, HNO2, HF, HCO2H, H3PO4
✔✔Weak base examples - ✔✔NH₃, H₂O, F⁻, CN⁻, CH₃COO⁻
✔✔Strong base examples - ✔✔LiOH, NaOH, KOH, RbOH, CsOH, Ca(OH)2, Sr(OH)2,
Ba(OH)2
✔✔The pH scale - ✔✔scale with values from 0 to 14, used to measure the
concentration of H+ ions in a solution; a pH of 0 to 7 is acidic, a pH of 7 is neutral, and a
pH of 7 to 14 is basic
✔✔Solutions - ✔✔A mixture where substances are distributed evenly. Has a solvent &
solute.
✔✔definition of oxidation - ✔✔loss of electrons
✔✔definition of reduction - ✔✔gain of electrons
✔✔Displacement Redox reaction - ✔✔CuSO4+Zn→Cu+ZnSO4
✔✔inorganic carbon compounds - ✔✔carbon dioxide, carbon disulfide, carbonate
containing compounds and bicarbonates
✔✔nitrogen compounds - ✔✔ammonia, hydrogen cyanide, cyanogen, and nitrous or
nitric acid
✔✔phosphorus compounds - ✔✔derivatives of phosphate (PO43−), a tetrahedral anion.
Phosphorus pentoxide (P4O10) is the acid anhydride of phosphoric acid, but several
intermediates between the two are known. This waxy white solid reacts vigorously with
water
✔✔sulfur compounds - ✔✔pyrite (iron sulfide), cinnabar (mercury sulfide), galena (lead
sulfide), sphalerite (zinc sulfide), and stibnite (antimony sulfide)
