CAP. 4 - I CALCOLI CON LE MOLI

Quiz
•
Chemistry
•
8th Grade
•
Hard

alessandra zanchin
Used 34+ times
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
IL RECIPIENTE PIÙ ADATTO PER 10 MOLI DI ACQUA DISTILLATA È: (suggerimento: calcola quanti grammi sono 10 moli di acqua...)
UNA SIRINGA DA 10 mL
UN BICCHIERE COMUNE
UNA LATTINA DA 50 cl
UNA BOTTIGLIA DA 1,5 LITRI
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
IN 2 MOLI DI CLORO (Cl2) VI SONO:
2 MOLECOLE
4 MOLECOLE
1,2044 X 1024 MOLECOLE
6,022 X 1046 MOLECOLE
3.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
CALCOLA LA MASSA MOLARE DI CaCO3
circa 100 g/mol
circa 78 g/mol
circa 108 g/mol
circa 88 g/mol
4.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
QUANTE MOLI CI SONO IN 30 g DI CO2?
1,36 mol
0,68 mol
0,84 mol
2,35 mol
5.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
QUAL È IL VOLUME DI 25 g DI AZOTO A STP? (suggerimento: prima calcola il n. moli...)
circa 25 L
circa 20 L
22,4 L
circa 40 L
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Prepari una soluzione con 0,025 moli di Na2SO4 in 500mL di soluzione. Ottieni una soluzione:
0,2 M
0,05 M
0,02 M
0,5 M
7.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
È data la reazione chimica:
2 Al + 6 HNO3 => 2 Al(NO3)3 + 3 H2
Quante moli di H2 si ottengono da 1 mole di Al e 3 moli di HNO3?
3
1,5
2
0,5
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