Biology
Biology, 04.06.2020 18:57, wavymoney77yt

Hola tengo un examen, no es necesario que me den todas las respuestas pero me seria de gran ayuda si me respondieran las que sepan Calcula la cantidad de gramos que hay en 12,5 mol de NaCl (Masa Na: 23,0; Cl: 35,5)
Opciones:
737,5 g de NaC
737,5 gr de NaC
738,5 g de NaC

Determinar la cantidad de moles y Γ‘tomos de Calcio que hay en 120 g de Ca. (Masas Ca:40)
opciones:
3 mol de Ca y 1,8066 x 10^24
3 mol de Ca y 1,8065 x 10^24
3 mol de Ca y 1,8067 x 10^24

Para el Γ‘cido sulfΓΊrico H2SO4 (Masas H:1,0 S: 32,01; O: 16,0). ΒΏCuΓ‘l es su masa molar?
opciones:
98 Kg/mol
98 gr/mol
98 g/mol

CuΓ‘ntos Γ‘tomos de Magnesio (Mg) hay 52 g de este (Masa Mg: 24,31)?
opciones:
12.89 x 10^23 (4 puntos)
12.88 x 10^23 (4 puntos)
12.88 x 10^24 (4 puntos)

SabrΓ­as decir el nΓΊmero de moles de Γ‘tomos de carbono en 513 g de C12H22O11 (Masa molar de C12H22O11: 342 g)
17 mol de Γ‘tomo de C.
16 mol de Γ‘tomo de C.
18 mol de Γ‘tomo de C.

Ncesito ayuda no entiendo :( de verdad estaria agradecido si me ayudan

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Answers: 1

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Hola tengo un examen, no es necesario que me den todas las respuestas pero me seria de gran ayuda si...

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