leverage7158 leverage7158

03-12-2020
Chemistry

contestada

The compound C2E10H12 (where E is an element) has a formula mass of approximately 144 g/mol. What is the atomic mass of E?

Respuesta :

07-12-2020

Answer:

Explanation:

C₂E₁₀H₁₂ = 144

molecular weight of given compound

= 2 x 12 + 10 x E + 12 x 1 = 144 ( atomic weight of C = 12 , H = 1 , E = E )

24 + 10 E + 12 = 144

10 E = 108

E = 10.8

Atomic mass of E = 10.8 u .

Answer Link

Otras preguntas

What value for A makes this equation true? 4 • 48 = (4 • 40) (4 • B)

Which organelle produces sugars while releasing oxygen, and in which cell could it be found?

When scientists analyze a rock for its age they are able to determine what events occurred and how it affected life. What do scientists deduce from this? A. det

what was the modern-day state of Utah called during the civil war

Which sentence uses possessive personal pronouns correctly? A. Her's is the one beside our's. B. The cat took it's time in settling onto the pillow on my bed. C

the carpet Erin has chosen costs 2.50per square foot. how much will it cost her to carpet the floor? Area of composite figures

Turn 0.46 into a fraction

Which sentence uses the words among/between correctly? A. Our group divided the research tasks between the group members. B. The student leadership group was ne

Identify the compound preposition. You may substitute margarine in place of butter. in place of you may substitute of butter margarine in place

chelsea's little brother packs 7 toys. if each toy weighs 1 3/4 ounces how any ounces does his baa weigh