Yes, the number of moles will remain the same as long as the chemical does not react with water.
Your question is irrelevant. I think that you were trying to find the number of molecules present in half a mole of water. 1 mole of water contains 6.023 * 1023 number of molecules. Hence half mole contains half of that number of molecules which is 3.0115*1023.
There are approximately 6.022 x 10^23 water molecules in a mole of water. This value is known as Avogadro's number and represents the number of particles in one mole of a substance.
A mole of water (H2O) molecules contains approximately 6.022 x 10^23 molecules. This number is known as Avogadro's number. Each mole of water molecules contains this specific number of molecules due to the atomic/molecular weight and mole concept.
The number of particals (molecules, atoms, ions etc.) in one mole of ANY substance is the same: 6.022*1023 (Avogadro's number)
In half a mole of water, there are approximately 3.01 x 10²³ molecules. This is calculated using Avogadro's number, which states that one mole of any substance contains about 6.02 x 10²³ entities. Therefore, half a mole would contain half of that number.
The whole number mole ratio of calcium sulfate (CaSO4) to water (H2O) in the compound CaSO4·2H2O is 1:2. This means that for every one mole of calcium sulfate, there are two moles of water present.
The number of elementary entities in a mole of the substance. The elementary entities depends on the particles making up the substance. For example, argon is made of single atoms, so a mole of argon simply contains Avogadro's number of atoms. Water, on the other hand, is made of molecules, so a mole of water contains Avogadro's number of molecules. Now each water molecule, H2O, contains 3 atoms so a mole of water contains 3xAvogadro's number of atoms. Sodium chloride, NaCl, is made of sodium and chloride ions, in a ratio of 1:1. So a mole of sodium chloride contains Avogadro's number of sodium ions, and Avogadro's number of chloride ions. A mole of sodium chloride therefore contains 2xAvogadro's number of ions in total. The number comes from the number of carbon atoms in 12g of carbon-12.
A cup is 8 fluid ounces. And 8 ounces is about 236.6 grams of water.There are 18 grams of water in one mole of water, and a mole of anything contains Avogadro's number of molecules of that compound. That's 6.02 x 1023 molecules.Our (236.6 grams of water) divided by (18 grams per mole) = 13.14 moles of waterOur (13.14 moles of water)(6.02 x 1023 molecules per mole) = 7.91 x 1024 molecules in the 8 ounce glass of water.We had 8 ounces of water. We converted to grams. Then we looked up water to see how many grams of water there were in a mole of water. Then we found out how many moles we had in our cup of water. Then, because we knew how many molecules of water were in a mole (we know because a mole of anything is Avogadro's number of particles of that substance), we multiply to find out how many molecules of water were in the cup of water.That's how we found that there are 7.91 x 1024 molecules in a cup of water.
A mole is that number of molecular units of a substance. The number is called the Avogadro constant, or Avogadro's number. (It is defined as the no. of atoms in 12 grams of carbon-12). For example, Iron has the chemical formula Fe. So a mole of iron is (Avogadro's no.) Fe atoms. Water has the formula H2O. A mole of water, then, is (Avogadro's no.) H2O molecules.
6.02x10^23 chocolate chips. This number is known as Avogadro's number. This number is the constant for the number of molecules in a mole of a substance. If you have 1 mole of Water, you have 6.02x1023 molecules of water. So the same for your chocolate chips. You have 6.02x1023 chocolate chips, because in this case the entire chocolate chip would be your molecule.
False, They contain the same number of molecules, not the same number of atoms. H2O contains 3 atoms, so in 1 mole of water there are 6.022*10^23 * 3 = 1.81*10^24 atoms. CH4 contains 5 atoms, so in 1 mole of methane there are 6.022*10^23 * 5 =3.01*10^24 atoms.
To find the number of hydrogen atoms, we need to first determine the number of water molecules in 738 grams of water. Then, using the molecular formula of water (H2O), we know that each water molecule contains 2 hydrogen atoms. Finally, we can calculate the total number of hydrogen atoms by multiplying the number of water molecules by 2.