How do you find moles of water?
As in the given question we have to calculate how many moles are present in the 25 grams of water and for this we have to divide the given weight of water by the molecular weight / mass of water. Hence, 1.38 moles (mol) are present in 25 grams of water.
What is equal to a mole?
One mole of a substance is equal to 6.022 × 10²³ units of that substance (such as atoms, molecules, or ions). The number 6.022 × 10²³ is known as Avogadro’s number or Avogadro’s constant.
What exactly is one mole?
The mole (symbol: mol) is the base unit of amount of substance in the International System of Units (SI). … It is defined as exactly 6.02214076×1023 elementary entities (“particles”), which may be atoms, molecules, ions, or electrons.
Could you swim in a mole of water?
While moles prefer to stay underground and dry, all moles can swim if the need arises. … They use their powerful arms to swim through the water, much like the way they move through the dirt. Some moles even swim underwater and can hold their breath for up to 10 seconds at a time.
How is a mole similar to a dozen?
Explain how a mole is similar to a dozen. The mole is a unit for counting 6.02 1023 representative particles. … Each one-mole quantity has 6.02 1023 particles (atoms), but they will have different masses. State the conversion factors needed to convert between mass and moles of the element fluorine.
What is mole fraction of water?
In an aqueous solution mole fraction of water is 0.75.
What is H2O?
H. 2. O is the chemical formula for water, meaning that each of its molecules contains one oxygen and two hydrogen atoms.
Why is a mole 6.022 x10 23?
The mole (abbreviated mol) is the SI measure of quantity of a “chemical entity,” such as atoms, electrons, or protons. It is defined as the amount of a substance that contains as many particles as there are atoms in 12 grams of pure carbon-12. So, 1 mol contains 6.022×1023elementary entities of the substance.