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

The Earth has a radius of 6,400 kilometers. A satellite orbits the Earth at a distance of 12,800 kilometers from the center of the Earth. If the weight of the s

How many combinations of 3 students can a teacher choose from 32 students? A. 96

Which sign is the less sign and which one is the greater sign (can someone please tell me I really need help! and I never understand the signs!) is this greater

On average Exante Express trains are 50km/hr faster than Paral passenger trains. A Paral passenger train requires 60% more time then Exante train to travel 1800

What's the value of pi?

The Earth has a radius of 6,400 kilometers. A satellite orbits the Earth at a distance of 12,800 kilometers from the center of the Earth. If the weight of the s

What are the three branches of government?

A boy jumps into a cold swimming pool and his body temperature goes down. His muscles, blood vessels, and nervous system work together to restore his body tempe

What are the positive and negative aspects of a zoo or safari park?

Which of the following is most important in classifying two groups of bears into the same genus? A. similar diets B. similar genes C. similar habitat D. similar