Does baking soda and vinegar have boiling and melting points?

Answer 1

Both melt, but sodium bicarbonate decomposes into sodium carbonate at high temperatures. Unbalanced equation:

NaHCO3 + heat ----> Na2CO3 + H2

That's a chemical change so no, sodium bicarbonate doesn't boil, which is a physical change.

Answer 2

The boiling point of vinegar, like all the other physical properties of vinegar, depends on it's acid concentration.
A typical distilled white vinegar containing 5% acetic acid (and 95% water) will boil at about 100.6 degrees Celsius (213 F).

Consider the acetic acid as a solute that raises the boiling point of pure water. The more acetic acid present, the higher the boiling point of the vinegar.
Pure acetic acid, called glacial acetic acid, has a boiling point of 118.1 degrees Celsius (244.5 F).

The freezing point of vinegar also depends on how much acetic acid is present.
A typical commercial vinegar with a 5% acetic acid content will have a freezing point of about -2 degrees Celsius (28 F).
So to melt frozen vinegar you would have to heat it to above -2 degrees Celsius (28 F).

Baking soda is sodium bicarbonate which is a chemical compound with the formula NaHCO3 and when it is heated to around 50 degrees Celsius it doesn't just melt it decomposes into sodium carbonate, water and carbon dioxide.

Answer 3

I don't see how you can give me 20 points, although I deserve it for answering so many questions. :-) If this is homework, as I suspect, you should try this in the following order: 1) read the textbook, 2) try to answer these questions yourself, 3) then read my answers below to see if you got it right. I can give you answers, but eventually you'll have to develop your own study skills. That being said, here are the answers: 1. The mass stays the same as it changes from a liquid to a solid. 2. equal to 3. The resulting mass would be 35 grams. [Remember, Conservation of Mass!!] 4. There is the same amount of energy at the end of the explosion than there is at the beginning. 5. exothermic 6. Boiling 7. Gas 8. evaporation. 9. gas. 10. exothermic 11. Freezing 12. an exothermic process. 13. chemical change. 14. a physical change. 15. physical change. 16. Smashing a rock 17. Reacting baking soda with vinegar 18. Gas 19. Evaporation 20. gas. 21. is constant as it is converted from one form to another. 22. Amount of energy 23. Dissolving salt in water

Answer 4

Sodium Bicarbonate Melting Point

Answer 5

Sodium Bicarbonate Boiling Point