# 3 em qc - aula 8 - mol estudo da quantidade de mol

Description
1. EXERCÍCIOS Pg. 102 Exercícios 1, 2 e 3 2. d = 1 g/mL --------------- > 1 mL ----------------- 1 g 180 mL ----------------- 180 g m = 180 g de água Massa Molar…
Categories
Published

View again

All materials on our website are shared by users. If you have any questions about copyright issues, please report us to resolve them. We are always happy to assist you.
Related Documents
Share
Transcript
• 1. EXERCÍCIOS Pg. 102 Exercícios 1, 2 e 3
• 2. d = 1 g/mL --------------- > 1 mL ----------------- 1 g 180 mL ----------------- 180 g m = 180 g de água Massa Molar (M) da H2O = 2. 1 + 1. 16 = 18 g/ mol 1 mol ---------------- 18 g n = 180 = 10 mols n ---------------- 180 g 18 Ou: n = m = 180 g = 10 mols M 18 g/mol
• 3. Massa Molecular (MM) do H2 = 2 . 1 = 2 u Massa Molar (M) = 2 g 2 g ---------------- 6,0 . 1023 moléculas 8 g ---------------- X X = 8 . 6,0 . 1023 = 24 . 1023 2 X = 2,4 . 1024 moléculas
• 4. Massa Molar (M) do C4H10 = 4.12 + 10.1 = 58 g/ mol 58 g ----- 6,0 . 1023 moléculas ----- 14 (6,0 . 1023) átomos 23,2 g ------------------------------------ X X = 23,2 . 14 (6,0 . 1023) = 33,6 . 1023 58 X = 3,36 . 1024 átomos
• 5. EXERCÍCIOS Pg. 102 Exercícios 4 e 5
• 6. Massa Molar (M) do CO = 1 . 12 + 1 . 16 = 28 g/ mol 28 g ----------------- 6,0 . 1023 moléculas X g ----------------- 1,8 . 1022 moléculas X = 28 . 1,8 . 1022 = 8,4 . 10-1 g 6,0 . 1023 X = 0,84 gramas
• 7. Massa Molar (M) do CH4 = 1 . 12 + 4 . 1 = 16 g/ mol 1 kg = 1000 g, então 3,2 kg = 3200 g 1 mol ----------------- 16 g n ------------------ 3200 g n = 3200 = 16 X = 200 mols
• 8. 200 mol ----------------- 5 horas n ------------------- 1 hora n = 200 = 40 mols 5 1 mol ------------------- 6,0 . 1023 moléculas 40 mols ---------------- X moléculas X = 40 (6,0 . 1023) = 240 . 1023 moléculas = 2,4 . 1025 moléculas

Jun 13, 2018

#### áLgebra recreativa

Jun 13, 2018
Search
Similar documents

### DISSERTAÇÃO_Estudo Da Adsorção de Eteramina Em Adsorventes Naturais e Sintéticos

View more...
Related Search
We Need Your Support
Thank you for visiting our website and your interest in our free products and services. We are nonprofit website to share and download documents. To the running of this website, we need your help to support us.

Thanks to everyone for your continued support.

No, Thanks