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ESTEQUIOMETRIA PARTE I

Authored by Francis Nava

Chemistry

2nd Grade

Used 2+ times

ESTEQUIOMETRIA PARTE I
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5 questions

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1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Calcule la masa en gramos de 2 átomo de mercurio (Hg). (MAHg = 200,59 g/mol).

3.33x10-22 gramos

6.66x10-22 gramos

9.99x1022 gramos

1.11x1022 gramos

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

¿Cuántos átomos hay en 3,52 g de magnesio (Mg)?. (MA Mg = 24,3 g/mol).

(Respuesta: 8,73 ∙ 1022 átomos de Mg).

7,72x 1022 átomos

5,72 x1022 átomos

8,72 x 1022 átomos

2,72x 1022 átomos

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Calcule la masa en gramos de 1,12x 1024 átomo de plata (Ag). (MAAg = 107,87 g/mol).

200,64 gramos

205,89 gramos

190,50 gramos

225,14 gramos

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Calcule cuantos equivale 1,26 x 1023 átomos de carbono en moles. (MAC=12g/mol)

0,30mol

3,22mol

2,56mol

0,21mol

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Calcule cuántos moles hay en 244 g de aluminio (Al).

(MA Al = 27 g/mol).

10mol

9,04 mol

8,55mol

9,45mol

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