jay99999916Lv1

15 Dec 2022

2. A hydrate of has a mass of 5.23 g before heating. After heating the mass of the anhydrous compound is found to be 2.85 g. Determine the formula of the hydrate and then write out the name of the hydrate

 

3. A hydrate of sodium sulfate with a formula of = , weighing 4.261 g. is heated to drive off the water of hydration. The anhydrous sodium sulfate weighs 2.625 g. What is the value of x?

 

4. A 14.28 g sample of a hydrate of magnesium carbonate MgCO3 was heated, Without decomposing the carbonate, to drive off the water. The mass was reduced to 6.38 g. What is the formula of the hydrate?

 

5. When a 3.98 g sample of a hydrate of calcium nitrate was heated, 1.16 g of water was driven off. What is the formula of the hydrate of calcium nitrate ?