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4 years ago

Which one of these salts will form a basic solution upon dissolving in water? cr(no3)3 libr nai nh4no3 naf?

2 answers:

4 0

Answer is: sodium fluoride NaF.
Sodium fluoride hydrolyse on strong base sodium hydroxide (NaOH) and weak acid hydrofluoric acid (HF), so water solution has pH greater that seven ant it is basic. Other salts have neutral or acidic pH value in water, because they hydrolyse on strong acid and weak or strong base.

Mrrafil [7]4 years ago

3 0

Answer: $NaF$

Explanation:

When a weak acid and strong base reacts, it leads to the formation of a basic solution.

When a strong acid and weak base reacts, it leads to the formation of acidic solution.

When a strong acid and strong base or weak acid and weak base reacts, it leads to the formation of a neutral solution.

$NaF$ is made up of strong base $NaOH$ and a weak acid [tex}HF[/tex] , thus leading to formation of basic solution.

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A saturated solution is made by dissolving a 23.5g of solute/100.0g of water at 20°. How many grams of solute would be needed to

VMariaS [17]

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3 years ago

Solids have: fixed shape O A and B fixed size neither A nor B

Lemur [1.5K]

Answer:

B. A and B

Explanation:

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8 0

4 years ago

What is the pH of 0.0001 M NaOH

kow [346]

Well. NaOH is a base. That's the first thing you need to watch for.
So to find the pOH, you take -log(.0001)
that would be 4. So now you have the pOH and you still need to find the pH
To find pH from pOH, you take 14(the maximum pH,sorta)-pOH(in this case 4)
14-4=10 The pH of NaOH is 10

5 0

3 years ago

nough of a monoprotic acid is dissolved in water to produce a 0.0199 M solution. The pH of the resulting solution is 2.64 . Calc

Debora [2.8K]

Answer:

Explanation

pH = 2.64

pH = - log [H+]

[H+] = 0.00229 M

HA = 0.0199 M

Dissociation equation

HA --> H+ + A-

Ka = [H+][A-]/[HA]

[H+] = [A-]

Ka = (0.00229^2)/0.0199

= 2.64 × 10^-4 M

5 0

4 years ago

Once an neutralization reaction has occurred...

KatRina [158]

I think the answer is b

6 0

3 years ago