Because of the risk of splashes and the release of dangerous fumes, acids and water should be mixed inside a fume hood. Protective goggles, gloves, and a lab coat should be worn. In most cases, an acid splash should be treated by immediately rinsing the affected area with running water.
Although a strong base will neutralize an acid more quickly than a weak base, a strong base should never be used because the reaction between a strong base and acid releases a great deal of heat. Hurum, Deanna. Actively scan device characteristics for identification. Use precise geolocation data. Select personalised content.
Create a personalised content profile. Measure ad performance. Select basic ads. Create a personalised ads profile. Another method is to pour the hot acid solution over ice made from de-ionized water and then diluting it with room temperature water to reach the final volume. Finally, choose your glassware wisely. An Erlenmeyer flask or volumetric flask is a better choice than a beaker or graduated cylinder because the flask shape acts as a sort of splash shield also, graduated cylinders are notoriously unstable and easy to tip over.
Like strong acids, strong bases react with water in an exothermic reaction. Also, like the strong acids, strong bases tend to be corrosive and able to cause chemical and thermal burns on skin. Search for:. Safely Diluting Acids. If you add the acid to the water, it sinks. Any wild and crazy reactions have to get through the water or beaker to get to you. How do you remember this? Here are some mnemonics:. Personally, I don't find any of those mnemonics easy to remember. I get it right because I figure if I get it wrong, I'd rather have a whole container of water splash on me than a whole container of sulfuric acid, so I take my chances with the small volume of acid and the large volume of water.
When you mix sulfuric acid and water, sulfuric acid donates a hydrogen ion, producing the hydronium ion. Sulfuric acid becomes its conjugate base, HSO 4 -. The equation for the reaction is:. Actively scan device characteristics for identification.
Use precise geolocation data. Select personalised content. Create a personalised content profile. Create a free Team What is Teams? Learn more. Why add water first then acid? Ask Question. Asked 9 years, 3 months ago. Active 2 months ago. Viewed k times. So, why does it get hotter when water is poured into it? What reaction takes place? Improve this question. Add a comment. Active Oldest Votes.
Improve this answer. Jan The other way around, it takes many drops of water added to a strong acid to dilute it enough to slow the reaction, so all of that initial water added to the acid reacts strongly, producing a lot of heat quickly. I think the same amount of total heating occurs either way, just the speed is different.
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