
CAP. 4 - I CALCOLI CON LE MOLI
Authored by Laura Davoli
Chemistry
8th Grade
Used 4+ times

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7 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Qual è la massa di un campione di 0,763 mol di cobalto ?
39,7 g
45,0 g
40,3 g
45,7 g
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
2 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
2 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
2 mins • 1 pt
QUAL È IL VOLUME DI 25 g DI AZOTO A STP?
circa 25 L
circa 20 L
22,4 L
circa 40 L
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Qual è la massa in grammi di un campione di gas neon contenente 1,00 x1020 atomi
1,66 x 10-4g
3,35 x 10-3g
298 g
3,35 x 10-3 g
8,33 x 10-6 g
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Quante moli di ossigeno sono contenute in una bombola di un kit di emergenza per Covid19 da 1 L, alla pressione di 197,4 atm e alla temperatura di 10 °C?
5,8 moli
240,7 moli
8,5 moli
24,07 moli
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