
ADA 3 COMPOSICION PORCENTUAL, FORMULA EMP. Y FORMULA MOL.
Authored by AZERET PARDENILLA
Chemistry, Mathematics
12th Grade
Used 14+ times

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6 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Calcule la composición porcentual del NH4NO3.
34.99% N, 5.03%H y 59.98% O
80.2% N, 3.02 %H y 13.22% O
99% N, 0.5 % H y 0.5% O
40% N, 20% H y 40% O
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Calcula la composición porcentual del NaHCO3.
27.37% Na, 1.2 % H, 14.29% C y 57.13% O
12.34% Na, 9.5% H, 80.4% O
30.4% Na, 20.3%H, 10.2% C y 40.4% O
10.02%Na, 34.2%H, 30.2%C y 42.9%O
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Calcule la composición porcentual del Al2(SO)3.
27.27% Al, 48.48% S y 24.24% O
30.2% Al, 21%S y 30.1% O
39.8% Al, 2.45% S y 80.1% O
27.27% Al, 24.24 %S y 48.48%O
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
La progesterona es un componente común de la píldora anticonceptiva. Si su fórmula empírica es C21H30O2 , ¿cuál es su composición porcentual?
C = 80,21% H= 9,62% O = 10,18%
C = 9.62% H= 80.21% O = 10.1%
C = 95.3% H= 8.4% O = 9.32%
C = 75.7% H= 7.32% O = 11.1%
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Un compuesto contiene 21.6% de sodio, 33.3% de cloro y 45.1% de oxígeno. Determine la fórmula
empírica del compuesto.
NaClO3
Na2Cl2O3
NaClO
Na5Cl2O5
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
El colorante usado para teñir de color azul los pantalones de mezclilla se llama índigo se prepara usando una amida de sodio. La amida de sodio contiene 5.71% de hidrógeno, 35.9% de nitrógeno, 58.9% de sodio.¿Cuál es su fórmula molecular?
NaNH2
Na2NH4
Na2N5H6
Na7H9O3
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