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ADA 3 COMPOSICION PORCENTUAL, FORMULA EMP. Y FORMULA MOL.

Authored by AZERET PARDENILLA

Chemistry, Mathematics

12th Grade

Used 14+ times

ADA 3 COMPOSICION PORCENTUAL, FORMULA EMP. Y FORMULA MOL.
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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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