
Química 201 - MFP (parte 1)
Authored by Francielle Pereira
Chemistry
9th - 12th Grade
Used 1+ times

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6 questions
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1.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Qual é a concentração comum de uma solução que contém 20g de NaCl dissolvidos em 500 mL de solução?
30 g/L
40 g/L
44 g/L
52 g/L
2.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Calcule a concentração molar de uma solução que contém 29 g de NaCl (massa molar=58,5g/mol) dissolvido em 1 litro de solução
o,39 mol/L
0,49 mol/L
0,29 mol/L
0,0049 mol/L
3.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Quantos ml de uma solução HCl 6 mol/L são necessários para preparar 500 ml de uma solução de 1 mol/L?
3 L
400 mL
93,4 mL
83,3 mL
4.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Um estudante dissolveu 10 g de sal de cozinha (NaCl) em 200 mL de água. Qual é a concentração comum da solução? (Dado: massa molar do NaCl = 58,5 g/ mol)
50 g/L
60 g/L
70 g/L
80 g/L
5.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Quantos mols de NaCl estão dissolvidos em 500 mL de uma solução 2 mol/L?
0,1 mol
1 mol
100 mols
1000 mols
6.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Quantos mL de uma solução 4 mol/L de HCl são necessários para preparar 100 mL de uma solução 1 mol/L?
15 mL
20 mL
25 mL
30 mL
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