
Càlcul de concentracions
Authored by Eduard Barrull Farré
Chemistry
12th Grade

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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Si tenim 2 moles de solut en 4 litres de solució, quina és la molaritat?
2 M
0.25 M
1 M
0.5 M
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Quina és la molaritat d'una solució que conté 5 mols de solut en 2 litres de solució?
3.0 M
1.5 M
2.5 M
0.5 M
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Si tenim 3 litres d'una solució amb una molaritat de 2 M, quants mols de solut tenim?
6 moles
8 moles
4 moles
10 moles
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Com es calcula la molaritat si tenim 0.5 moles de solut en 1.5 litres de solució?
1 mol/L
0.5 mol/L
0.3333 mol/L
0.25 mol/L
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Si diluïm 100 ml d'una solució 3 M a 500 ml, quina serà la nova molaritat?
0.6 M
0.3 M
2.4 M
1.2 M
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Quina quantitat de solut (en grams) necessitem per preparar 2 litres d'una solució 1 M, si el pes molecular del solut és 58 g/mol?
116 g
58 g
200 g
100 g
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Si tenim una solució de 4 M i volem fer 200 ml d'una solució 1 M, quina quantitat de solució original necessitem?
50 ml
75 ml
25 ml
100 ml
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