I need help with this lesson this is one whole lesson please,thanks 1 Road e LAD

Question

I need help with this lesson this is one whole lesson please,thanks

1 Road e LAD DESCRUPTION and determine your grapfis should be yeur osirisem wt wo sioe reater ian one less then ene equal to ane 2 When heated to drive off the water of orystalizetion, do you expect be ctor of reterel to change? Yes No 3 wial removing water of crystalizaion change the oxidation states of the ciements in Yes NO 4 Which of the following safety precautions would you choose to use when handing e porcelain crucibles used as containers to heat the salts? The heat used is very small so you can just grab the orucibles with your bare hands Rubber gloves will protect your hands well from the temperatures needed to extrect 9s water from the salts Use metal tongs to pick up and move the crucible How many water molecules do you calculate aru mtached to barun crtorda te tormaa weight of the hydated salt is 244.77 The atomic mass of barum 137.3 danna. The mue mass of chlorine is 35.5 daltons 6. Would you say that the mass of the water of hydration of barlum chloride is greater or less than the mass of the anhydrous barium chtanide? The formula weight of the hydated salt is 244 77 The atomic mass of barium is 137 3 daftons. The atomic mass of chlorine is 35 5 daitons greater leso 7 The following word or phrases compare the hydrated saltl to the anhydrous sall after healing Pick the choice you think does not accurately describe their relationship Hydrate crystal structure is different than anhydrous salt crystal structure Hydrate has a higher mass than the anhydrous salt Hydrate is different color than the anhydrous satl Hydrate has water loosely bound to the ions in the crystal Submit

Explanation / Answer

1. Slope of the graph would be,

less than one

2. When heated to drive off water, the color changes,

yes

3. When removing water, oxidation state changes,

No

4. Safety precuation while handling crucibles.

Use metal tongs to pick up an move the crucible

5. number of water molecules = (244.7 - 137.3 - 35.5)/18 = 4

4

6. mass of hydration of BaCl2 is greater or less

less

7. comparing hydrated salt to the anhydrous form,

Hydrate has water molecules loosely bound to the ions in the crystal

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