Jarrell937 Jarrell937
  • 19-09-2020
  • Chemistry
contestada

Which of the following formulas has the smallest percent
carbon by mass?
CF4
CO2
CH4
C204

Respuesta :

inuola1234
inuola1234 inuola1234
  • 19-09-2020

Answer: CF4

Explanation:

Calculate the molar mass of each compound. Divide the molar mass of Carbon by the molar mass of each compound, then multiply the answer by 100 to get the percentage.

CF4= 12+(19X 4)

=12+76= 88 g/mol

%C= 12/88 x 100= 13.64%

CO2= 12+(16 X 2)

12+32= 44 G/MOL

%C= 12/44 x 100= 27.3%

CH4= 12+ (1 X4)

=12+4

=16 G/MOL

%C= 12/16  X 100= 75%

C204

(12X2) + (16X4)

24+64

= 88 g/mol

%C= 24/88 x 100

= 27.3%

Answer Link

Otras preguntas

3 examples of organisms that use camouflage as an adaptation to survive
What factors lead to the tiaping rebellion
How old is are the Americas?
In Africa savanna more wildebeest are born than the environment can support. Which is most likely to happen over a period of years as a result
how long dose it take to give blood for your first time
Scientists were motoring a meteor headed toward earth. It moved off course , but some pieces of rock entered the earths atmosphere . Which atmospheric layer pro
what is the best example of a secondary source document useful in the study of history
Between midnight and 6:00 A.M., the temperature dropped 10 degrees. Between 6:00 AM and noon, the temperature rose 18 degrees. What was the change in temperatur
what is the answer to (X-2) (X+3)
A sentence with one independent clause and at least one dependent clause is called: