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

Doctors once believed that illness was caused by foul air and could not be transmitted from one person to another. now, doctors know that single-celled bacteria

To select the correct student's t-distribution requires knowing the degrees of freedom. How many degrees of freedom are there for a sample of size n?

A good source for the practitioner to gain an understanding of unfamiliar areas of the tax law is through?

A force of 12,000 n is exerted on a piston that has an area of 0. 020 m 2. What is the area of a second piston that exerts a force of 24,000 n?

How did the redistribution of germany's colonies change the balance of power in the pacific?

Find the values of a and b.

What is the area of this figure? 14 km 8 km 9 km 8 km 5 km 4 km 4 km 4 km

Another reason for the bystander effect is not wanting to draw negative attention to oneself. What is this called?.

Choose a book or short story. Then imagine what it would be like in another format such as a TV show, movie, video game, radio, or play. 3-5 sentences long stat

I want passive form of this sentence .they say that she is a witch.