subject
Chemistry, 09.01.2021 16:50 genyjoannerubiera

Hi, I am doing this question and needed help on how a ratio would be calculated to get the empirical formula. I keep getting an empirical formula of CH2, the mark scheme says C3H7.
I understand that to get C3H7, you have to multiply by 3 but I dont understand why
Here is the question:

Analysis of a different hydrocarbon Y shows that it contains 83.7% by mass of carbon.
Calculate the empirical formula of Y.
Use this empirical formula and the relative molecular mass of Y (Mr = 86.0) to
calculate the molecular formula of Y.

ansver
Answers: 2

Another question on Chemistry

question
Chemistry, 22.06.2019 02:40
How many liters of hydrogen gas will be produced at stp from the reaction of 7.179Γ—10^23 atoms of magnesium with 54.219g of phosphoric acid (h3po4) the equation is 3mg + 2h3(> mg(po4)2+3h2
Answers: 1
question
Chemistry, 22.06.2019 04:50
Compare the equilibrium constants for the systems shown in the table. which favors products the most? which favors products the least? rank these systems in order from most to least in terms of favoring products rather than reactants. d > b > a > c c > a > b > d b > c > d > a a > d > c > b
Answers: 1
question
Chemistry, 22.06.2019 06:00
In an investigation that uses the scientific method, which step immediately follows making a hypothesis? o summarizing the results o asking a question o making observations designing an experiment mark this and retum save and exit next submit
Answers: 2
question
Chemistry, 22.06.2019 13:00
Tell me the iupac name of the following compounds:
Answers: 1
You know the right answer?
Hi, I am doing this question and needed help on how a ratio would be calculated to get the empirical...
Questions
question
Mathematics, 31.10.2019 00:31
question
Mathematics, 31.10.2019 00:31
question
Mathematics, 31.10.2019 00:31
question
History, 31.10.2019 00:31
question
History, 31.10.2019 00:31
question
Computers and Technology, 31.10.2019 00:31
question
Mathematics, 31.10.2019 00:31
Questions on the website: 13722359