badasswithabow badasswithabow

12-11-2018
Chemistry

contestada

What is the empirical formula of a compound that contains 40 percent carbon, 6.7 percent hydrogen, and 53.3 percent oxygen by mass?

Respuesta :

jsoso102000 jsoso102000

21-11-2018

40.0 g C * 1 mol C/ 12.0 g C = 3.333 mol C

6.7 g H * 1 mol H/ 1.008 g H= 6.6 mol H

53.3 g O * 1 mol/ 16.0 g O= 3.331 mol O

divide by the least moles

3.333 mol C / 3.331 = 1

6.6 mol H/ 3.331 = 1.98 ~ 2

3.331 mol O/ 3.331 = 1

empirical formula is H2CO

Answer Link

Otras preguntas

How do you set these problems up?

gene sold 10 glasses of lemonade while setting up his lemonade stand. after opening, he sold an average of20 glasses each hour. write a function to represent th

In which main energy level does the 's' sublevel first appear? K (first main energy level) L (second main energy level) M (third main energy level)

There are 16 seagulls at 1 pm on the beach. By 3 pm, there were 40 seagulls. What is the constant rate of change? PS I need to show my work.

please help me this is so hard.

Why was the Boston Tea Party an effective way to protest?

Which gas was not a part of earth's atmosphere 3.6 billion years ago?

If you put a coin in a bottle and then stop the opening with a cork. how can you get the coin out of the bottle without pulling out the cork or breaking the bot

How did issues of race and gender impact the admission of western states into the union?

Dramatic Irony is when the reader knows something a character DOES NOT. Which of the following events is an example of dramatic irony? SELECT AN ANSWER A. Telem