12. A 15.7-g sample of sodium carbonate is added to a solution of acetic acid weighing...

50.1K

Verified Solution

Question

Chemistry

12. A 15.7-g sample of sodium carbonate isadded to a solution of acetic acid weighing 19.4g. The two substances react, releasing carbon dioxide gas to theatmosphere. After reaction, the contents of the reaction vesselweighs 28.4 g.

What is the mass of carbon dioxide given off during thereaction?
13. Cadmium metal reacts vigorously with yellowcrystals of sulfur to produce a yellow powder ofcadmium sulfide. A chemist determines that112 g of cadmium reacts with 32.1g of sulfur. How much cadmium sulfide could beproduced from 45.4 g of cadmiummetal?
18. Pick if it is a chemical or physcial reaction
(a) Pure water is obtained from ocean water byevaporating the water, then condensing it.
physical process
chemical reaction
(b) Mercury is obtained by heating the substancemercury(II) oxide; oxygen is also obtained.
physical process
chemical reaction
(c) Zinc is produced through the electrolysis ofaqueous zinc sulfate
physical process
chemical reaction
(d) Gold is obtained from river sand by panning(allowing the heavy metal to settle in flowingwater).

Answer & Explanation Solved by verified expert

4.2 Ratings (855 Votes)

12 Na2CO3 2CH3COOH 2CH3COONa CO2 H2O Initially total weight of reaction mixture 157194 351gm After reaction weight 284gm Msss of CO2 given off Loss in weight of mixture 351284 67gm 13 See Answer

Get Answers to Unlimited Questions

Join us to gain access to millions of questions and expert answers. Enjoy exclusive benefits tailored just for you!

Membership Benefits:

Unlimited Question Access with detailed Answers
Zin AI - 3 Million Words
10 Dall-E 3 Images
20 Plot Generations
Conversation with Dialogue Memory
No Ads, Ever!
Access to Our Best AI Platform: Flex AI - Your personal assistant for all your inquiries!

Become a Member