antoninacalcotelara antoninacalcotelara

03-01-2021
Chemistry

contestada

What is the molecular formula of the compound with a molecular weight of 112 g/mol and percent composition: 85.6% C and 14.4% H?
Select one:
a.C2H4
b.CH2
c.C4H8
d.C8H16

Respuesta :

ChoiSungHyun ChoiSungHyun

03-01-2021

Explanation:

Mass of C = 112g * (85.6/100) = 95.87g

Moles of C = 95.87g / (12g/mol) = 8

Mass of H = 112g * (14.4/100) = 16.13g

Moles of C = 16.13g / (1g/mol) = 16

Hence the compound is C8H16. (D)

Answer Link

Otras preguntas

simple present tense

HELP ME PLEASE I DONT UNDERSTAND!!!!!

help is need cuz I dont have time to be waiting all day day for two answers

A formal proof uses all of the following components except what? A. Geometry rules B. Theorems C. A set of examples D. Algebra rules

Which is the best concluding sentence for this paragraph? A predictable cycle of seasons is the ideal source of variety and beauty in my perfect world. Many peo

What is the wavelength for this wave?

1. What statement best expresses a central idea in the text? A. Being Black in America often means you do not know what you have until it's gone. B. Being Black

How do you feel about Fiona now?

Each of the 18 students in Mr. Hall's class has p pencils. Which expression represents the total number of pencils that Mr. Hall's class has? 18+p 18-p 18 x p 1

give four importantnce of recycling