![mikewalton566](/avatars/10245.jpg)
mikewalton566
07.01.2021 •
Chemistry
what is the empirical formula of A compound is found to contain 39.12 % carbon, 8.772 % hydrogen, and 52.11 % oxygen by mass.
Solved
Show answers
More tips
- L Leisure and Entertainment What Movies You Should Watch: A Guideline to Make the Right Decision...
- F Family and Home How to Choose a Baby Stroller: Tips from Experienced Parents...
- H Health and Medicine 5 Simple Steps to Quit Smoking for Good...
- C Computers and Internet How to Download Videos from YouTube? Simple Steps to Download Any Content...
- H Health and Medicine What is the Normal Blood Sugar Level in a Healthy Person?...
- S Style and Beauty How to Get Rid of Acne: Scientifically Proven Methods...
- L Leisure and Entertainment How to Choose the Perfect Gift for Men on February 23rd?...
- C Computers and Internet How to Delete Your Account on Odnoklassniki...
- H Health and Medicine 10 Simple and Effective Tips on How to Lose Weight in a Week...
- F Food and Cooking What s the Best Rice for Cooking Plov?...
Answers on questions: Chemistry
- C Chemistry Spontaneous reaction are always exothermic always take place at rapid rate...
- C Chemistry Predict which of the following pairs of solutions, when mixed together, will cause a precipitate to form. (Select all that apply.) Ksp values are: CoS 4.0 × 10–21...
- C Chemistry A solution that is 0.135 M is diluted to make 500.0 mL of a 0.0851 M solution. How many milliliters of the original solution were required? View Available Hint(s)...
- C Chemistry What elements,compounds or mixtures that can be broken down into something simpler?...
- C Chemistry A mixture of 9.0 mol NE and 9.0 mol Kr are at STP in a rigid container...
- C Chemistry 10:50g of KNO3 salt saturated 5g of solvent at 15oC Calculate the solubility of KNO3 salt at that same temperature...
- C Chemistry 2. Lagyan ito ng pasingawang kawayan upang mabulok kaagad ang basura. 3.Pumili ng lagayan ng yari sa kahoy, o yero na sapat ang laki at haba.4. Takpan ng dahon ngsaging...
- C Chemistry What causes heartburn? How do antacids work to relieve heartburn? What are the key ingredients in various antacids? Are some more effective than others, and if so...
- C Chemistry If water was used to rinse the burette used to dispense the hydrochloric acid solution, how would this affect your final estimate of hydrochloric acid concentration?...
- C Chemistry How does the atomic arrangement of atoms lead to its crystal like structure?...
Ответ:
C₃H₈O₃
Explanation:
Let's assume we have 100 g of said compound. Then we would have:
39.12 g of C8.772 g of H52.11 g of ONow we convert those masses into moles, using their respective atomic weights:
C ⇒ 39.12 g ÷ 12 g/mol = 3.26 mol CH ⇒ 8.722 g ÷ 1 g/mol = 8.722 mol HO ⇒ 52.11 g ÷ 16 g/mol = 3.26 mol OThen we divide those moles by the smallest number among them:
C ⇒ 3.26 mol C / 3.26 = 1H ⇒ 8.722 mol H / 3.26 = 2.68O ⇒ 3.26 mol O / 3.26 = 1Finally we multiply those numbers by 3, so as to convert the 2.68 of H into an integer:
C ⇒ 1 * 3 = 3H ⇒ 2.68 * 3 = 8O ⇒ 1 * 3 = 3Thus the empirical formula is C₃H₈O₃
Ответ: