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Why all the hardness of water is expressed in terms of Calcium carbonate?
Calcium carbonate is commonly used to express water hardness because it is a major component of the mineral deposits that form in plumbing and appliances. It is also a stable compound that is not affected by changes in pH, making it a reliable indicator of overall water hardness.
What compound name is CoCl2?
The name of the compound is cobalt(II) chloride. It is made up of the elements cobalt and chlorine. The anhydrous form of the compound is sky blue, while the hydrated variant, its hexahydrate (CoCl2·6H2O), is deep purple.
What is difference between 0.1N iodine and 0.1 M iodine solutions?
I read this as a 1 molar solution, which is to say, a concentration of one mole of NaOH per liter of solution. If that is not what you mean, please don't abbreviate the words (whatever the M and the m stand for) and write them out in full. I don't know what else it would mean other than molar.
Solute per 100g of solvent is called what?
"Solute per 100g solvent" is the unit given to solubility of a substance.
Which sample contains the greatest number of atoms a sample of Al that contains 8.18E plus 23 atoms or a 5.16 mole sample of S?
Which sample contains the greatest number of atoms. A sample of Al that contains 8.18E+23 atoms or a 5.16 mole sample of S?The sample of______ contains the greatest number of atoms.Answer:In order to compare the two samples, it is necessary to express both quantities in the same units. Since the question was phrased in terms of atoms, it is convenient to convert moles of S to atoms of S.The conversion factor between atoms and moles is Avogadro's number: 6.02 x 1023 "things" / molTo convert 5.16 moles of S to atoms of S:atoms S=5.16 mol S6.02 x 1023 atoms S= 3.11E+24 atoms S1 mol SMultiply by atoms per mole. Moles cancel out.The sample of Al contains 8.18E+23 atoms.Since 3.11E+24 is larger than 8.18E+23, the sample of S contains the greatest number of atoms.
How can you express the concentration of a substance mathematically?
In chemistry, the concentration of a substance in solution is determined by molarity, which is symbolized by "M". This indicates the number of moles of a substance dissolved in one liter of a solvent (usually water). For example: - 1 mole of sodium chloride = 58 grams - If 116 grams of sodium chloride are dissolved in 1 liter of water, then that solution is a 2-molar (2 M) solution of sodium chloride. - If 232 grams of sodium chloride are dissolved in 1 liter of water, then that solution is a 4-molar (4 M) solution of sodium chloride.
What is a one molar solution?
These solutions contain 1 mol of the particular substance dissolved in a liter of water.
What is 0.80M means?
0.80M means 0.80 moles per liter of solution, indicating the concentration of a solute in a solution. It is a common unit in chemistry to express the amount of a substance dissolved in a given volume of solvent.
What is 0.1 mol per liter?
It refers to a solution each litre of which contains one tenth of a mole of a particular substance. A mole is a specific number of atoms or molecules - 6.02 x 10 to the power of 23, also known as Avogadro's number. One mole of any substance has a mass equal to its atomic or molecular weight expressed in grams. Thus, one mole of Helium has a mass of 2g; one mole of Sodium Chloride - NaCl - has a mass of 22.98g + 35.45g = 58.43g. It follows that a 0.1 molar solution of NaCl contains 5.843g of NaCl in each litre of solution.
What ratio does molarity express?
Moles of solute per liter of solution.
What is another way to express the concentration of a glucose solution that is 0.01 percent by weight?
Another way to express the concentration of a 0.01 percent by weight glucose solution is to say it is a 100 parts per million (ppm) solution. This means there are 100 grams of glucose in every 1 million grams of solution.
What is a 1 molar solution?
Molar solution, commonly called molarity, is the amount of amount of substance in a certain volume. Typically it is measured in moles per litre. A 1 molar solution means there is one mole of substance per one litre. This can also be called a one mole concentration of solution.
What is of 25 m mol solution?
A 25 millimole (m mol) solution means there are 25 millimoles of solute in every liter of solution. It is a unit used to express the concentration of a solute in a solution.
What is the another way to express the concentration of a glucose solution that is 0.01 percent by weight?
Another way to express the concentration of a glucose solution that is 0.01 percent by weight is as 100 parts per million (ppm). This means there are 100 grams of glucose in 1 million grams of solution.
What contains specific rules and words that express logical steps of algorithm?
programming language
What is a unit often used to express the concentration of a solution in 1 divided by 1000000000000?
A unit often used to express the concentration of a solution in 1 divided by 1 trillion is parts per trillion (ppt). This unit is commonly used to describe extremely low concentrations of substances in a solution.
What contains specific rules and words that express the logical step of an algorithm?
programming language
