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Alexxx [7]
1 year ago
14

The NH₄⁺ ion forms acidic solutions, and the CH₃COO⁻ ion forms basic solutions. However, a solution of ammonium acetate is almos

t neutral. Do all of the ammonium salts of weak acids form neutral solutions? Explain your answer.
Chemistry
1 answer:
tigry1 [53]1 year ago
6 0

Not always ammonium salts of weak acids form neutral solutions.

When formic acid reacts with ammonia, ammonium formate is produced:

HCO2H + NH3 ---->  NH4HCO2

You already know that the weak conjugate bases of NH3 and HCO2H are NH4+ and HCO2, respectively.

How can the pH of the solution be calculated if the salt's anion causes the pH to rise and the salt's cation causes it to fall? The relative intensities of the basic anion and the acidic cation hold the key to the solution.

As was already established, formate is a weak base and will create hydroxide ions in water, whereas ammonium is a weak acid and will make hydronium ions in water.

NH4⁺ + H2O -----> NH3 + H3O⁺

HCO2⁻ + H2O ----->  HCO2H + OH⁻

Since the acid ionization of NH4+ is more favored than the base ionization of HCO2-, the solution will be acidic.

To learn more about ammonium salts:

brainly.com/question/10874844

#SPJ4

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Pickled cucumbers remain edible much longer than fresh cucumbers. Why
Alla [95]
The main reason why is because pickled cucumber contain a lot of salt, which can act as a preservative.
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3 years ago
The vapor pressure of benzene is 73.03 mm Hg at 25°C. How many grams of estrogen (estradiol), C18H24O2, a nonvolatile, nonelectr
alexira [117]

Answer:

14.9802 grams of estrogen must be added to 216.7 grams of benzene.

Explanation:

The relative lowering of vapor pressure of solution containing non volatile solute is equal to mole fraction of solute.

\frac{p_o-p_s}{p_o}=\frac{n_2}{n_1+n_2}

Where:

p_o = Vapor pressure of pure solvent

p_s = Vapor pressure of the solution

n_1 = Number of moles of solvent

n_2 = Number of moles of solute

p_o = 73.03 mmHg

p_s= 71.61 mmHg

n_1=\frac{216.7 g}{78.12 g/mol}=2.7739 mol

\frac{73.03 mmHg-71.61 mmHg}{73.03 mmHg}=\frac{n_2}{2.7739 mol+n_2}

n_2=0.05499 mol

Mass of 0.05499 moles of estrogen :

= 0.05499 mol × 272.4 g/mol = 14.9802 g

14.9802 grams of estrogen must be added to 216.7 grams of benzene.

6 0
3 years ago
Which element in period 3 has both metallic and non metalik properties​
Andrei [34K]

Answer:

Si is the answer I hope this help

6 0
2 years ago
Calculate the volume occupied by 16.3 moles of nitrogen gas at 273 K and 101.3kPa
erma4kov [3.2K]

Answer: V= 366.3 L

Explanation:

Using the ideal gas law; PV = nRT

P= pressure = 101 kPa  , n =  Number of moles = 16.3 moles

V = Volume = ?               R= Gas constant =  8.31 kPa L/Mol K

T= Temperature = 273K

We make ''V'' the subject of the formular;

V = n R T/ P =  16.3mol  x 8.31 kPa. L / mol. K x 273 K

                        -----------------------------------------------------

                                           101 kPa

                V  = 366.3 L

8 0
2 years ago
I need help on this question I need to finish this
Nesterboy [21]

Answer:

D

Explanation:

Diabetes is caused when the pancreas has trouble producing insulin, a hormone that lowers blood sugar levels. Since the endocrine system deals with hormones, diabetes is an endocrine system disease.

3 0
3 years ago
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