(1) Washing soda, a compound used to prepare hard water for washing laundry, is a hydrate, which means that a certain nu
Posted: Sat Feb 26, 2022 12:01 pm
(1) Washing soda, a compound used to prepare hard water for washing laundry, is a hydrate, which means that a certain number of water molecules are included in the solid structure. Its formula can be written as Na C0 x 120, where x is the number of moles of H20 per mole of Na2CO,. When a 2.480 g sample of washing soda is heated at 125°C, all the water of hydration is lost, leaving 0.919 g of Na2CO,. What is the value of x?