Q-What is the acid/base reaction on hydrangeas? I think it is like litmus paper-pink for acid, blue for base. A-Hydrangeas in the macrophylla, or ”large-leaved,” group, which include the ...

Note: I already posted this instablog last week. Somehow it dissappeared.

Similarly, the colors of many foods, including grapes, cherries, berries, plums, eggplant and cabbage, are due to pigments called anthocyanins, many of which behave as acid-base indicators.

This educational film explores acid-base indicators and their color changes in response to acidity. It demonstrates how substances like tea, red cabbage, and litmus paper react when acids are ...

Some argue that the acid amount was too small to affect the litmus. Research mentions that each milliliter of onion juice contains 1−22 μmol of lachrymator. If sulfuric acid had formed in a 1:1 ratio, ...

Some time ago, in an article entitled "How to make Oil of Vitriol," we gave a full description of the processes usually employed in the manufacture of that commercial acid ; and we now propose to ...

In recent years, a cottage industry has sprung up around the industrial internet of things (IoT) landscape -- and the data generated by it. Amazon's even thrown its hat in the ring with Lookout ...

The UK now has one of the highest number of recorded acid attacks per person of any country in the world, and the figure is expected to rise further, police have warned.. Senior officers believe ...

Learn how to test pH of food for canning in a water bath to ensure that you are meeting the requirements for high-acid foods. This is an educational tool and not a license to change lab-tested ...