TMS (Test fĂŒr Medizinische StudiengĂ€nge) practice · Medical and Scientific Understanding

Chemistry and Physics for Medicine

20 practice questions, each with the answer and an explanation.

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Random questions from this topic, one at a time. You see the answer and the explanation straight after each one.

All 20 questions

  1. What is the pH of a 0.01 mol/L solution of hydrochloric acid?
  2. What is the pH of a 0.001 mol/L solution of sodium hydroxide at 25 degrees Celsius?
  3. What is the molar mass of water (H = 1, O = 16)?
  4. How many moles of water are in 36 g of water (molar mass 18 g/mol)?
  5. What is a buffer solution?
  6. What is the oxidation state of manganese in potassium permanganate, KMnO4?
  7. Which functional group is typical of alcohols?
  8. What kind of bond links two amino acids in a protein?
  9. A potential difference of 12 V is applied across a resistor of 4 ohms. What current flows?
  10. A 60 W lamp is connected to a 230 V supply. About what current does it draw?
  11. A stone is dropped from rest. Taking g as 10 m/s2 and ignoring air, how fast is it moving after 2 seconds?
  12. What is the kinetic energy of a 2 kg object moving at 3 m/s?
  13. A force of 100 N acts on an area of 0.5 square metres. What is the pressure?
  14. A sample contains 80 mg of a radioactive substance with a half-life of 3 hours. How much remains after 9 hours?
  15. Which type of ionising radiation is the most penetrating?
  16. A sound wave has a frequency of 500 Hz and a speed of 340 m/s. What is its wavelength?
  17. In osmosis, in which direction does water move across a semipermeable membrane?
  18. A converging lens has a focal length of 0.5 m. What is its power?
  19. For the reaction N2 + 3 H2 <-> 2 NH3, what happens if the pressure is increased at constant temperature?
  20. How much heat is needed to warm 500 g of water by 10 degrees Celsius (c = 4.2 J per g per degree)?

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