How do you calculate moles of water lost?
How do you calculate moles of water lost?
Divide the mass of water lost when you heated the salt by the molar mass of water, roughly 18 grams per mole. In our example, we lost 9 grams of water; if we divide 9 by 18, we get 0.5 moles of water lost.
How do you calculate lost water?
Multiply the length (L) times width (W) times the amount of the water loss (WL) in inches times . 6233 for a rectangular pool. Example: L-32′ x W-18′ x WL 2″ x . 6233 = 718.04 gallons in 24 hours.
How do you calculate the number of moles of water lost for every mole of anhydrous salt?
In order to determine the formula of the hydrate, [Anhydrous Solidâ‹…xH2O], the number of moles of water per mole of anhydrous solid (x) will be calculated by dividing the number of moles of water by the number of moles of the anhydrous solid (Equation 2.12. 6).
How do you calculate water in a hydrate?
Divide the mass of the water lost by the mass of hydrate and multiply by 100. The theoretical (actual) percent hydration (percent water) can be calculated from the formula of the hydrate by dividing the mass of water in one mole of the hydrate by the molar mass of the hydrate and multiplying by 100.
What is the molar mass of water in the hydrate?
The theoretical percentage of water is found by dividing the total mass of water (12 x 18.02 g) by the molar mass of the hydrate (474.46 g).
How do you calculate the mass of water lost by heating?
Experimentally measuring the percent water in a hydrate involves first heating a known mass of the hydrate to remove the waters of hydration and then measuring the mass of the anhydrate remaining. The difference between the two masses is the mass of water lost.
What is the water in the hydrate?
Many ionic compounds naturally contain water as part of the crystal lattice structure. A hydrate is a compound that has one or more water molecules bound to each formula unit. Ionic compounds that contain a transition metal are often highly colored.
