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pH Levels
pH levels are the measure of activity of hydrogen.
2,503 Questions
What specific substance could i add to my soil if the pH is too acidic?
an alkali
My answer will be a little more detailed than the previous. First you need know what acid you are dealing with. A response to the question who do you raise the PH of Nitric Acid? The response was you add water, which is somewhat correct but barely. We use two different chemicals to adjust PH in acids. Lets say we have a batch of Nitric Acid at 3ph and we need to get it to 7. Very carefully if you are doing this manually you will need to add Sodium Hydroxide AKA caustic soda. In the industry this is the go to chemical to raise the PH. BE CAREFUL caustic hurts like a you know what if you get it on you, I once got it in my eye. Not fun!. When adding the caustic do it slowly and mix the acids like you would a sauce. Add small drops of it. Adding a lot within seconds will bring the PH to 11. Thats called overshooting. If you overshoot. Follow the same procedure as I mentioned but switch the caustic with hydrocloric acid. Caustic raised the PH, Hydro lowers it.
Chris
Scott Metal Finishing
What is the best range for the pH of soil?
the best pH for plants in order to grow is 5-7 this means that having slightly acidic soil to neutral soils is the best for growing plants. Plants will still grow in slightly basic soil but not as well
Is the pH of an acid higher or lower than water?
Water at different temperatures has different densities. Water at 4°C, is the densest and so it is heavier by volume than water at lower or higher temperatures. However, when water is mixed, the temperature will become the average of the two water temperatures. This means that you can't see one floating on the other - even if you coloured one of the water temperatures, it would mix almost immediately.
Something else to consider is that water is not as homogenous as most people think. Naturally occuring water contains deuterium oxide, 17O and 18O isotope water, and tritiated water are forms of heavy water.
What is the pH value and colour on pH paper of dilute lemon juice?
It depends on its nature either it is concentrated or dilluted but most of the time it shows red colour on pH paper
What are weak acids or weak bases that can react with strong acids or bases to keep the pH?
Solutions containing these mixtures are called buffers.
What is the PH of lactic acid?
As with any acid, that depends entirely on its concentration. The greater the concentration (until saturation) the lower the pH.
Lactic acid is a "middle of the road" weak acid; all in equal concentrations, lactic acid is stronger than citric, weaker than acetic, and about the same as formic.
What happens when the pH solution is lower?
When adding a strong acid to an acidic solution pH decreases. Adding a strong base to an acidic solution the pH increases.
What color does red cabbage juice change depending on the pH?
Cabbage contain Anthocyanins called Cyanidin. These are responsible for changing color with pH. Changing the pH affects the shape of the molecule which, in turn, changes its wavelength absorption.
What is the strongest base listed on the pH scale?
There is no definite answer to this, but sec-Butyllithium can rip a proton from just about anything.
A methanide compound (one with a C4- anion), in theory, would blow sec-Buyllithium out of the water.
No one knows for sure what the strongest bases in the world are -spirit967
Which label would best describe a solution with a pH of 11?
a buffer is wrong, it is basic or alkaline, depending on the choices
A pH level between 6.5 and 8 is considered healthy for human body. In a pH balanced body, urine is slightly acid in the morning, (pH = 6.5 - 7.0) generally becoming more alkaline (pH = 7.5 - 8.0) by evening in healthy people primarily because no food or beverages are consumed while sleeping.
What is the pH of peppermint candy?
There are far too many variable to give an answer to this. The pH will depend on the pH of the water used, the "mint" used, of the soil in which the "mint" was grown, and any additions to the beverage.
What is the colour of HCl on pH paper?
The color of Ph paper is supposed to change, depending on the Ph level of the liquid you placed it on. The color is dependent as well. When purchasing Ph paper, it comes with a guide on the box. It is best to use that.
How did changing the pH effect the action of catalase?
Catalase work optimal in pH 7. Enzyme work specificly on certain pH. If change in pH occurs, it will slowing down the reaction rate.
If the solution is too acidic (low pH value) or too basic (high pH value) the catalase is inactive - no longer functions as an enzyme. So that's why your cells should be neutral (pH 7). Our bodies are creating Hydrogen peroxide during normal metabolic events and catalase is present in the peroxisomes of nearly all human cells. There, it serves to protect the cell from any toxic effects by catalyzing the decompostion of H2O2 without the production of Oxygen free radicals.
Catalase takes two molecules of hydrogen peroxide and converts them to two water molecules plus a molecule of oxygen gas. Hydrogen peroxide is a toxic molecule.
Amount of solution in test tube is called the controlled variable. Controlled variables must be carefully monitored and kept equal in your experiments - otherwise they could mess up your experiment by making your results false or unreliable.
