10H20
The chemical formula for water is H2O. When you have 12 molecules of water, the chemical formula would be 12H2O.
The formula 6CuCl represents 6 molecules of copper(II) chloride, CuCl2. Therefore, there are 6 x Avogadro's number (6.022 x 10^23) molecules in 6CuCl, which is 3.6132 x 10^24 molecules.
Amylase is a catalyst (enzime).Amylose is the polysaccharide.
Molality of a solution is defined as the number of gram moles, for molecular compounds, or gram formula unit masses, for ionic compounds, mixed with each kilogram of solvent. Sodium chloride is the solute in the question, and water is the solvent. Avogadro's Number is defined as the number of formula units required to constitute one gram formula unit and has the value of about 6.022 X 1023. Therefore, 10 formula units of NaCl constitutes 10/(6.022 X 1023) or about 1.6606 X 10-23 gram formula unit. The gram molecular mass of water is 18.0518. Therefore, 200 molecules of water contains (200)(18.0518)/(6.022 X 1023) or about 599.5 X 10-23 grams or 0.5995 X 10-23) kilograms. Therefore, the molality of the given mixture is 1.6606/0.59995* or about 2.768. ________ *The number 10-23 appears in both numerator and denominator, and therefore need not be included in this fraction.
Low formula mass alcohols, such as methanol and ethanol, are soluble in water due to their ability to form hydrogen bonds with water molecules. The hydroxyl group (-OH) in alcohols can participate in hydrogen bonding with water molecules, allowing the alcohol molecules to mix and dissolve in water. This makes them miscible in water to some extent.
The chemical formula for water is H2O. When you have 12 molecules of water, the chemical formula would be 12H2O.
Sodium chromate usually does not contain any water molecules per formula. The formula for sodium chromate is Na2CrO4, which does not have any water molecules associated with it.
KAl(SO4)2 is the formula unit found in alum. The formula of alum is KAl(SO4)2 .12H2O There are twelve water molecules present per formula unit, it is a sometimes called dodecahydrate.
For sodium sulfate decahydrate (Na2SO4·10H2O), on heating, 10 moles of water molecules will be driven off per mole of the hydrate. Each formula unit of the hydrate contains 10 water molecules.
Chemical formula for water is H2O. One water molecule has 2 hydrogen atoms. That means 10 hydrogen atoms are needed to form five water molecules.The ration between hydrogen and oxygen in a water molecule is 2:1. In five water molecules, there are five oxygen atoms. According the ratio, there are 10 hydrogen atoms.
The formula 6CuCl represents 6 molecules of copper(II) chloride, CuCl2. Therefore, there are 6 x Avogadro's number (6.022 x 10^23) molecules in 6CuCl, which is 3.6132 x 10^24 molecules.
How many formula units make up 2.00 g of magnesium chloride
There are 6 molecules in the formula 3H2O: 3 molecules of water (H2O) each composed of 3 atoms (2 hydrogen and 1 oxygen).
An octahydrate contains 8 water molecules per formula unit.
A dihydrate formula indicates that a compound contains two molecules of water. It is represented by the prefix "di" followed by the chemical formula of the compound and then "hydrate." For example, calcium sulfate dihydrate has the formula CaSO4·2H2O, indicating that it contains two molecules of water.
Amylase is a catalyst (enzime).Amylose is the polysaccharide.
Molality of a solution is defined as the number of gram moles, for molecular compounds, or gram formula unit masses, for ionic compounds, mixed with each kilogram of solvent. Sodium chloride is the solute in the question, and water is the solvent. Avogadro's Number is defined as the number of formula units required to constitute one gram formula unit and has the value of about 6.022 X 1023. Therefore, 10 formula units of NaCl constitutes 10/(6.022 X 1023) or about 1.6606 X 10-23 gram formula unit. The gram molecular mass of water is 18.0518. Therefore, 200 molecules of water contains (200)(18.0518)/(6.022 X 1023) or about 599.5 X 10-23 grams or 0.5995 X 10-23) kilograms. Therefore, the molality of the given mixture is 1.6606/0.59995* or about 2.768. ________ *The number 10-23 appears in both numerator and denominator, and therefore need not be included in this fraction.