Werkblad Scheikunde voor toelatingsexamens verpleegkunde met antwoorden
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Naam: ____________________ Datum: ____________
1.Makkelijk
What are the units of molarity?
AGrams of solute per 100 g of solution
BMoles of solute per litre of solution (mol/L)
CMoles of solute per kilogram of the solvent used
DGrams of solute per litre of solution (g/L)
2.Makkelijk
What is an electrolyte?
AA substance that forms ions and conducts electricity when dissolved in water
BA substance that dissolves as whole molecules without forming any ions
CA metal that conducts electricity as a solid
DA gas that dissolves in blood
3.Makkelijk
What is oxidation, in terms of electrons?
ALoss of electrons
BLoss of protons
CGain of electrons
DGain of neutrons
4.Gemiddeld
Why does ice float on liquid water?
AIce contains trapped air from the freezer
BIce is less dense than liquid water
CIce is denser than liquid water
DIce has a higher mass than the same volume of water
5.Gemiddeld
According to the Brønsted–Lowry definition, what is an acid?
AA proton (H⁺) donor
BAn electron pair donor
CA hydroxide ion donor
DA proton (H⁺) acceptor
6.Gemiddeld
To which family of organic compounds does ethanol, C₂H₅OH, belong?
AAlcohols
BAlkanes
CEsters
DCarboxylic acids
7.Moeilijk
Equal masses of sand and water sit in the sun and absorb the same amount of heat. Which warms up more, and why?
AWater, because it has a higher specific heat capacity than sand
BSand, because it has a higher specific heat capacity than water
CBoth warm equally, because they absorbed the same heat
DSand, because it has a lower specific heat capacity than water
8.Moeilijk
Sulfuric acid reacts with sodium hydroxide: H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O. How many moles of NaOH neutralise 0,5 mol of H₂SO₄?
A1 mol
B0,25 mol
C2 mol
D0,5 mol
Antwoordenblad
1. B · Moles of solute per litre of solution (mol/L)
2. A · A substance that forms ions and conducts electricity when dissolved in water
3. A · Loss of electrons
4. B · Ice is less dense than liquid water
5. A · A proton (H⁺) donor
6. A · Alcohols
7. D · Sand, because it has a lower specific heat capacity than water
8. A · 1 mol
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