![taylordalton93](/avatars/43769.jpg)
taylordalton93
22.01.2021 •
Chemistry
What is the molar mass of a gas if the density at STP is 1.16 g/L at STP?
Solved
Show answers
More tips
- C Computers and Internet Make Money Online: Secrets and Essential Ways...
- S Style and Beauty Learn how to tie a keffiyeh on your head like a pro...
- S Style and Beauty How to braid friendship bracelets?...
- F Food and Cooking Delight for Gourmets: How to Prepare Liver Pate...
- C Computers and Internet How to Learn to Type Fast?...
- H Health and Medicine Angina: Causes, Symptoms, and Treatment...
- D Dating, Love, Relationships How to Overcome Jealousy: Tips and Tricks...
- H Health and Medicine 10 Ways to Cleanse Your Colon and Improve Your Health...
- W Work and Career How to Start Your Own Business: Tips and Recommendations...
- F Food and Cooking How to Make Delicious Cabbage Pies: The Best Recipes!...
Answers on questions: Chemistry
- C Chemistry When you have a two-layer mixture of water and tert-butyl methyl ether, what physical property of these liquids assures you that the ether is the top layer?...
- C Chemistry What is the pH of an aqueous solution made by combining 35.01 mL of a 0.3791 M ammonium chloride with 40.07 mL of a 0.3542 M solution of ammonia to which 3.112 mL of a...
- C Chemistry To measure the amount of chlorine in a well-boring fluid, an analytical chemist adds silver nitrate solution to a sample of the fluid and collects the solid silver chloride...
- C Chemistry What mass of precipitate can form if 1.5 L of a saturated solution of Pb(NO3)2 is mixed with 0.765 L of a 0.205 M NaI solution?...
- C Chemistry POWER OF MOO MOO COWS hahahaha...
- C Chemistry What is the pH to 2 decimal places after 21 mL of 0.20 M HCl is added to 125 mL of buffer prepared by mixing 0.10 M NH3 and 0.10 M NH4?...
- C Chemistry An element with the electron configuration: [noble gas] ns2 (n - 1)d10 np3 has how many valence electrons. a. 2 b. 15 c. 3 d. 10 e. 5...
- C Chemistry A 3.8-mol sample of KClO3 was decomposed according to the equation. How many moles of O2 are formed assuming 100% yield?...
- C Chemistry What is the percent composition of sulfur compound that contains 20.8 g carbon and 54.4 g sulfur?...
- C Chemistry Can you determine the atomic weight of zinc or copper by the methods used in this experiment if so how...
Ответ:
The answer to your question is below
Explanation:
Reaction
C₂H₂ (g) + O₂(g) ⇒ CO₂ (g) + H₂O (g)
Reactants Elements Reactants
2 C 1
2 H 2
2 O 3
This reaction is unbalance
Reaction balanced
2C₂H₂ (g) + 5O₂(g) ⇒ 4CO₂ (g) + 2H₂O (g)
Reactants Elements Reactants
4 C 4
4 H 4
10 O 10
Now, the reaction is balanced
a) Calculate the molecular mass of acetylene and water
Acetylene = (12 x 2) + (2) = 26 g
Water = (1 x 2) + (1 x 16) = 18 g
2(26) g of Acetylene 2(18) g of Water
113 g of Acetylene x
x = (113 x (2 x 18)) / 2(26)
x = 4068 / 52
x = 78. 2 g of water
b) 2 moles of Acetylene 4 moles of carbon dioxide
x moles of acetylene 1.10 moles of carbon dioxide
x = (1.10 x 2) / 4
x = 0.55 moles of acetylene