Calculate the solubility of Mg(OH)2 in 0.10 M NaOH. Calculate the solubility in grams/liter. MglOH)2 .10M NaOH Mg(OH)2 (s) 1.8Y 10-"=[S][2Sto.10]? S Mg?4cag) + 20H caq Ksp= [Mgzy [OH-]² use Ice table Common ion effect. 1-8X10 =5 (0.1)? =(S)(0.-01) = 1.8x10 S= 1-8x10- 0.01 = 1.8X10-9 M S =1.8x10-9) (58.3 gle)=1.049x 10* glL
Calculate the solubility of Mg(OH)2 in 0.10 M NaOH. Calculate the solubility in grams/liter. MglOH)2 .10M NaOH Mg(OH)2 (s) 1.8Y 10-"=[S][2Sto.10]? S Mg?4cag) + 20H caq Ksp= [Mgzy [OH-]² use Ice table Common ion effect. 1-8X10 =5 (0.1)? =(S)(0.-01) = 1.8x10 S= 1-8x10- 0.01 = 1.8X10-9 M S =1.8x10-9) (58.3 gle)=1.049x 10* glL
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Transcribed Image Text:Calculate the solubility of Mg(OH)2 in 0.10 M Mg(NO3)2 . Calculate the solubility in
grams/liter.
Mg (o11) 1-8x10-"
Ksp-EM9J COH-J?
1.8X10: (0.1 ts)-(2S)?
1-8810 4s (0,1+S)
use ice table
Common ion
effect.
Mg INO3)2 = 0.10M
1.8X 1o- 482.o.1
(462) (0.1)=1.8x10"
6.7x 10: bM =S
0.1.4
S= l6.71x10-) (58:32 glL)
=(3.91xlo"
6. Would Mg(OH)2 be more, or less, soluble in an acid solution? Explain.
MglOH)2 will be more soluble in acid solution because
MgloH)2 is a weak base and in presence of acid,
its oH ions will react H30? ions to form weakly
/ dissociatig H20 molecules and due to that concentration
of hydroxide ions in soution will decrease and that
will cacse o chif of equibliriom on the nght side
wish cause an in crease in the solubility of
MgloH)2 in the pre sence on an acid.
![the sölubility in pure water, of magnesium hydroxide in mol/L
and in g/L.
Ksp of Mg (OH)2=2.c0x10-13
Ksp= [Mg?!] [OH j?
26X 10 6-[S] (25j?
Solubility = 4.02x 165 .5839
1L
1mol
|2:34 x10 8glL v
13.
2.6x1013
453
S3 32.6 xlo
4.02X10-5 mol/L
4
ACalculate the solubility of Mg(OH)2 in 0.10 M NaOH. Calculate the solubility in
grams/liter.
1OM NAOH
MgloH)z
Mg(OH)2 (s) M9*lcaq) + 201H caq,
1.8Y 10-1"=[S]t2sto.10]?
Ksp: [Mgzy [oH ]?
use Ice table
Common i on
effect.
1.8X10 =s (0-1)?=(S)(0.01) = 1.8x101
S 1-8x10-
= 1:8×10-9 M
0.01
S =(1.8x 10-9) (58.3 gle) (1,049x 10-7 gle](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F59ba8978-df20-4b7b-8a20-fd6d11bb939e%2F5e71ea46-6786-4910-bb30-443d2120f433%2F4xpv5h_processed.jpeg&w=3840&q=75)
Transcribed Image Text:the sölubility in pure water, of magnesium hydroxide in mol/L
and in g/L.
Ksp of Mg (OH)2=2.c0x10-13
Ksp= [Mg?!] [OH j?
26X 10 6-[S] (25j?
Solubility = 4.02x 165 .5839
1L
1mol
|2:34 x10 8glL v
13.
2.6x1013
453
S3 32.6 xlo
4.02X10-5 mol/L
4
ACalculate the solubility of Mg(OH)2 in 0.10 M NaOH. Calculate the solubility in
grams/liter.
1OM NAOH
MgloH)z
Mg(OH)2 (s) M9*lcaq) + 201H caq,
1.8Y 10-1"=[S]t2sto.10]?
Ksp: [Mgzy [oH ]?
use Ice table
Common i on
effect.
1.8X10 =s (0-1)?=(S)(0.01) = 1.8x101
S 1-8x10-
= 1:8×10-9 M
0.01
S =(1.8x 10-9) (58.3 gle) (1,049x 10-7 gle
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