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1. Find the molar mass of the hydrate (Calcium Chloride Dihydrate).
Find the molar mass of water and the anhydrate (anhydrate + water = hydrate); add the molar mass values of each to find the molar mass of the hydrate.
Molar Mass CaCl2: 110.98g
+ Molar Mass H2O: 36.04g*
Molar Mass CaCl2 * 2H2O: 147.01g
Finding Molar Mass
# atoms element A * Atomic Mass element A = Mass A
# atoms element B * atomic mass element B = Mass B
... etc.
Add up all the mass values and you have the value for molar mass. Do this for both the anhydrate and the water molecules. Add these values together to find the molar mass of the hydrate.
Molar Mass Anhydrate + Molar Mass Water Molecules* = Molar Mass Hydrate
* Tip: the molar mass of water for all hydrate calculations is 18.02g x number of water molecules. This number may be useful to remember on the day of the test or while doing practice problems.*
2. Calculate the percentage of water in hydrate.
Divide the molar mass of water by the molar mass of the hydrate, and multiply result by 100%.
36.04g
147.01g x 100%
Percent water in hydrate is 24.52%.
What else can I help you with?
Are the twelve waters of hydration used to calculate the theoretical yield of the alum?
Yes, the twelve waters of hydration in the formula of alum, KAl(SO4)2·12H2O, are used to calculate the theoretical yield of alum. Each mole of alum contains twelve moles of water molecules, which must be accounted for when determining the expected mass of alum produced in a chemical reaction.
What is the balanced equation of the hydration of CuSO4?
A hydration equation gives information regarding the reactants and products formed when a substance dissolves in water. Since a hydration reaction takes place in water, the solvent water can be indicated above the arrow. For example, the hydration equation for a strong electrolyte, such as , can also be written as Similarly, the hydration equation for a weak electrolyte, such as , and a nonelectrolyte, such as , can be written as
What is a substance called after the water of hydration has been removed?
When the water of hydration has been removed, the substance is called an anhydrous compound. This means that the compound no longer contains water in its chemical structure.
Why is the hydration of an ion always negative?
The hydration of an ion is negative because energy is released when water molecules surround and stabilize the ion. This release of energy is favorable and results in a negative enthalpy change. The hydration process is exothermic, meaning it releases heat.
What happens when you mix water with cement?
When water is mixed with cement, a chemical reaction called hydration occurs. This reaction causes the cement particles to bind together and transform into a solid material, which is known as concrete. The water helps to initiate the reaction and also provides the necessary environment for the hydration process to take place.
What should your total body water percentage be for optimal health and hydration?
For optimal health and hydration, your total body water percentage should be around 50-65.
What should my body water percentage be for optimal health and hydration?
For optimal health and hydration, your body water percentage should be around 50-65. This helps maintain proper bodily functions and supports overall well-being.
What is the percentage of adult male is water?
Approximately 60% of the adult male body is composed of water. This percentage can vary based on factors such as age, body composition, and hydration level.
Why hydration is always called solvation but solvation is not always called hydration?
It depends on what the solvent is. If it is water, then it is called hydration. If the solvent is not water, then it cannot be called hydration.
How do you find theoretical percent of water?
To find the theoretical percent of water in a compound, you need to determine the molar mass of the compound and the molar mass of water. Then, divide the molar mass of water by the molar mass of the compound and multiply by 100 to get the percentage.
What percentage of a snakes body is water?
Approximately 60-75% of a snake's body is composed of water, depending on the species and its hydration levels. This high water content is essential for various physiological functions, including digestion, circulation, and thermoregulation. Proper hydration is crucial for a snake's overall health and survival.
What is the process called when water molecules surround ions during the process of dissolving?
The process is called hydration. Water molecules surround ions and form a hydration shell, which helps in the dissolution of the ions in water.
Explain the importance of hydration and the factors that may affect hydration?
Hydration is incredibly important because the body is nearly 60% water. Without proper hydration, the muscles and organs will begin to shut down. One factor of hydration is not drinking enough water, another is sun exposure.
Are the twelve waters of hydration used to calculate the theoretical yield of the alum?
Yes, the twelve waters of hydration in the formula of alum, KAl(SO4)2·12H2O, are used to calculate the theoretical yield of alum. Each mole of alum contains twelve moles of water molecules, which must be accounted for when determining the expected mass of alum produced in a chemical reaction.
What type of water dispenser do gerbils need for proper hydration?
Gerbils need a water bottle with a sipper tube for proper hydration.
What percentage of a dogs body is made of water?
Approximately 60-70% of a dog's body is made up of water. Adequate hydration is key to maintaining a dog's overall health and well-being.
What is spinal disc hydration?
Drink water.
