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It tells about the degree of acidity or alkalinity of a substance.
The pH is a measure of the concentration of hydrogen ions present.
pH = - log10 [H+]
Example:
concentration of H+, [H+] = 0.010 M
pH = - log10 0.010
= 2
pH = 5
[H+] = 10-5 M
= 1 x 10 -5 M
pH = 3.5
[H+] = 10-3.5 M
= 3.2 x 10-4 M
What else can I help you with?
What can tell us whether something is an acid or alkali in 10 letters?
Test the pH.
What are the Physical and chemical properties of timber?
Timber is a natural material with physical properties such as strength, durability, density, and elasticity. Chemically, timber is composed primarily of cellulose, hemicellulose, and lignin, giving it its unique properties. Timber is also subject to changes in properties due to factors like moisture content, temperature, and exposure to chemicals.
What is an indicator and what does it tell us?
An indicator is a chemical compound that changes colour and structure when exposed to certain conditions and is therefore useful for chemical tests. Litmus, for example, is an indicator that becomes red in the presence of acids and blue in the presence of bases.
Who warn us of the potential dangers of chemical?
FDA and other health experts warn consumers about the potential health about what types or concentrations of potentially harmful chemicals.
Why do we need chemicals in our daily lives?
Chemicals ARE our daily lives. Every piece of fruit that you eat, every piece of clothing you wear, every process that happens in your body - is almost entirely made of or depends on chemicals. Chemical is just the name for anything that has constant chemical properties and can't be broken down through normal physical means. In other words, chemicals are practically everything. As for particular chemicals, like additives to food or pesticides etc., the answer is more complicated. But that's a different question.
What document provides information on the hazards of a particular chemical?
In the US the document is known as the Material Safety Data Sheet or MSDS as it is often referred to. It gives you the information on the hazards involved with handling the certain chemical, such as how flammable it is, what chemicals/compounds it is made of, the PH, how it interacts/reacts with other types of chemicals, the personal protective equipment necessary when handling it, etc. The manufacturer of the chemical is required to supply the MSDS of the specific chemical.
What do indicators tell us?
Indicators are used to tell a person whether or not a chemical is present or what pH a substance may be. Usually an indicator is a strip that is dipped into the substance and will change color based on the presence of a substance or pH.
Who are the top three manufacturers of chemical tanks in the US?
The top three manufacturers of chemical tanks in the US are Pro Tanks, Pressure Chemical Co. and Mix Tanks. The regulation and containment of chemicals in the US is a big business.
What does the pH of a solution tell us?
The pH of a solution tells us how acidic or basic it is on a scale from 0 to 14. A pH below 7 indicates acidity, while a pH above 7 indicates alkalinity. A pH of 7 is considered neutral.
What can tell us whether something is an acid or alkali in 10 letters?
Test the pH.
What do superscripts tell us?
In chemical symbols, superscripts following the letters tell us the number of charges on an ion.
How do you create a chemical?
You can't really "create" a chemical. You can process chemicals into other chemicals, but there are a great many different ways to do this and you'd need to be a lot more specific about what you want and what you have available in order for us to begin to answer it.
What are some chemical changes in the integument's system?
when the systm ries to hel it can use chemicals that can help us
Why chemistry is important to your lives?
All around us are chemical products. Our body is a complex of chemicals. Our foods are chemicals. Our drugs are chemicals. Pesticides and fertilizers, fuels and oils, building materials and plastics, asphalt and rubber - also chemicals. The air is mixture of gaseous chemical elements also the water.
What tells us whether something is an acid or an alkali's?
The pH of the solution can tell if it is acidic or alkaline. For acids, pH will be 1 to 7 and for alkaline it will be around 8 to 14. pH of 7 is for neutral solution.
What do you do when some kind of chemical spills over to us?
The actions depends on the nature of these chemicals, the quantity, the danger etc.
What are the Physical and chemical properties of timber?
Timber is a natural material with physical properties such as strength, durability, density, and elasticity. Chemically, timber is composed primarily of cellulose, hemicellulose, and lignin, giving it its unique properties. Timber is also subject to changes in properties due to factors like moisture content, temperature, and exposure to chemicals.
