The answer to this question is about 0.250L of 12M hydrochloric acid would be required to make a 0.500L solution of 6M Hydrochloric acid. If you are a chemistry student then you will probably already know that 12 moles of hydrochloric acid is twice the concentration of 6 moles of hydrochloric acid. Therefore only 0.250 L of it would be needed to make 0.500 L because it has simply halved.
The mole is defined as a unit of measurement for the amount of substance or a chemical amount. Its unit symbol is mol. It is used in chemistry to describe chemical reactions. The unit of moles is used because chemical reactions take place at a level where the use of grams would not work. A mole is the quantity of anything that has the same number of particles that is found in 12.000 grams of carbon-12. This number is in fact called Avogadro’s Constant, and the exact number is 6.02x1023 carbon atoms.
Moles form the basis of all equations. The most common way to figure out how many moles of a substance whose molar mass is known, is to weigh the substance to obtain its weight in grams. Then you would divide the weight by the molar mass and this would give you the moles of the substance. Another method used to figure out the moles of a gas is to divide the volume of the gas by the molar volume which is the volume occupied by one mole of substance. The value of molar volume is 1.7x10-6. Another method someone can use to determine the moles of a substance, assuming that they have the correct equipment, is to measure the electrical charge. This is defined as a physical property of matter which causes it to experience a force when near other electrically charged matter.
The mole is defined as a unit of measurement for the amount of substance or a chemical amount. Its unit symbol is mol. It is used in chemistry to describe chemical reactions. The unit of moles is used because chemical reactions take place at a level where the use of grams would not work. A mole is the quantity of anything that has the same number of particles that is found in 12.000 grams of carbon-12. This number is in fact called Avogadro’s Constant, and the exact number is 6.02x1023 carbon atoms.
Moles form the basis of all equations. The most common way to figure out how many moles of a substance whose molar mass is known, is to weigh the substance to obtain its weight in grams. Then you would divide the weight by the molar mass and this would give you the moles of the substance. Another method used to figure out the moles of a gas is to divide the volume of the gas by the molar volume which is the volume occupied by one mole of substance. The value of molar volume is 1.7x10-6. Another method someone can use to determine the moles of a substance, assuming that they have the correct equipment, is to measure the electrical charge. This is defined as a physical property of matter which causes it to experience a force when near other electrically charged matter.
