calcule a concentração em mol/litro de uma solução aquosa que contém 19,6g de áciddo sulfúrico por l.... Pergunta de ideia desamanthachialle

July 2022 1 35 Report

calcule a concentração em mol/litro de uma solução aquosa que contém 19,6g de áciddo sulfúrico por litros de solução.
a) 0,5 mol/L
b) 0,2 mol/L
c) 0,4 mol/L
d) 0,1 mol/L
e) 0.3 mol/L

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WillQuimica

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Dados

Massa molar do H2SO4 = 98 g/mol

Massa amostra = 19,6 g

Volume = 1 L

Molaridade = ? mol/L

M = m / mm x v

M= 19,6 / 98 x 1

M= 19,6 / 98

M= 0,2 mol/L

logo a alternativa é a B, supondo que partimos a partir de 1 L de solução

espero ter ajudado, ^^

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samanthachialle obgda

WillQuimica ;D

dada as matrizes: A=|2 5| B=|9 1| C=|3 -1| |-4 8| |-7 0| |-9 5| a) A+2B b) 2A-C c)AB d)B(elevado a T) C(elevado a T)

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samanthachialle July 2022 | 0 Respostas

complete the setences below about the simple past. affirmative sentences are formed with the verbs in their _____ forms . questions are formed with the auxiliary _ and the main verbs in their____forms.

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dada as matrizes: A=|2 5| B=|9 1| C=|3 -1| |-4 8| |-7 0| |-9 5| a) A+2B b) 2A-C c)AB d)B(elevado a T) C(elevado a T)

complete the setences below about the simple past. affirmative sentences are formed with the verbs in their _____ forms . questions are formed with the auxiliary _ and the main verbs in their____forms.

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dada as matrizes: A=|2 5| B=|9 1| C=|3 -1| |-4 8| |-7 0| |-9 5| a) A+2B b) 2A-C c)A*B d)B(elevado a T) * C(elevado a T)

complete the setences below about the simple past. affirmative sentences are formed with the verbs in their _______ forms . questions are formed with the auxiliary _____ and the main verbs in their______forms.

Helpful Links

Helpful Social

dada as matrizes: A=|2 5| B=|9 1| C=|3 -1| |-4 8| |-7 0| |-9 5| a) A+2B b) 2A-C c)AB d)B(elevado a T) C(elevado a T)

complete the setences below about the simple past. affirmative sentences are formed with the verbs in their _____ forms . questions are formed with the auxiliary _ and the main verbs in their____forms.