First find the number of mol
85/142 = 0.598 mol
divide the mol by the volume in L
0.598/0.325 = 1.81M. C is close enough
Answer:
What happens when the two atoms are fairly close? ... Are the atoms really "sharing" electrons? The atoms are not really sharing electrons as much as they are fighting over them this creates a force that makes the atoms stick together. What type of atoms form covalent bonds?
<span>It will take 409 liters of water to dissolve 1.00 grams of barium sulfate at 20°C
Barium sulfate is almost insoluble in water. At 20°C, only 2.448 x 10^-3 grams will dissolve in 1 liter of water. So take the amount of barium sulfate and divide by its solubility.
1.00 / 2.448 x 10^-3 = 408.49 liters.
Since we only have 3 significant figures, round the result to 3 figures.
409 liters</span>
<span>1. MgBr2
Soluble.
Rule: all the binary compounds of the group 17 (different to F) with metals are solubles, except those formed with Ag, Hg (I) and Pb.
2. PbI2
Insoluble.
Rule: it is one of the exceptions stated in the rule above.
3. (NH4)2CO3
Soluble.
Rule: salts containing NH4(+) are soluble.
4. ZnSO4
Soluble
Rule: </span><span>This salt is not an exception to the rule that most sulfate salts are soluble. Important exceptions to this rule include BaSO4,
PbSO4, Ag2SO4 and SrSO4
5. Sr(OH)2
Soluble (slightly soluble).
Rule: </span><span>Hydroxide salts of Group II elements (Ca,
Sr, and Ba) are slightly soluble</span>
