Em uma amostra de 1,15 g de sodio, o numero de atomos e igual a ?.... Pergunta de ideia deAlexandra1

May 2020 1 93 Report

Em uma amostra de 1,15 g de sodio, o numero de atomos e igual a ?

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erickurachi Sódio(Na)=23 g/mol

$23g --------- 6.10^{23}$ átomos
$1,15g-------- a$ átomos

$a= \frac{6.10^{23}.1,15}{23}$

$a=3.10^{22}$ átomos de sódio

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aidez moi en ces trois questions

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alexandra1 February 2021 | 0 Respostas

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Alexandra1 May 2020 | 0 Respostas

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Alexandra1 April 2019 | 0 Respostas

aidez moi svp c'est pour mon devoir demain

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aidez moi en ces trois questions

Italiano : j'ai besoin d'une description pour un travail et autre pour un personne en Italiano c pour mon devoir demain svp aidez moi <3

Nas CNTP , o volume ocupado por 10 g de monoxido de carbono (co) e

aidez moi svp c'est pour mon devoir demain

Kelly parent's are very strict and norrow minded and over protective with Kelly that's why she have problems with them and she need many advices ... give her some advices

Recomendar perguntas

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