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yarga [219]
3 years ago
14

Classify each of the following reactants and products as an acid or base according to the Bronsted theory: H3PO4 + C6H5O- <=&

gt; H2PO4- + C6H5OH
Which are acids and which are bases? Thanks!
Chemistry
1 answer:
Alexxandr [17]3 years ago
6 0

Answer:

H₃PO₄ is an acid because donates the proton to fenolate.

Fenolate is the base because accepts the proton from the acid.

Explanation:

Bronsted theory mentioned that acid is the one that donates a proton to another compound and base is the one that receives it.

H₃PO₄   +   C₆H₅O⁻    ⇄      H₂PO₄⁻      +       C₆H₅OH

acid              base              conj. base            conj. acid

H₃PO₄ is an acid because donates the proton to fenolate.

Fenolate is the base because accepts the proton from the acid.

If we follow the dissociation, the diacid phosphate can donate two more protons, it is still a Bronsted acid, but it can act as an acid or a base. This is called amphoteric.

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List and discuss at least 4 reasons why a laboratory should operate using GLP.
Drupady [299]

Answer:

The list and discussions are stated below:

Explanation:

Good Laboratory Practice (GLP) is extremely important.

1. Organization

With GLP we can guarantee an organized work environment, which is essencial in a laboratory.

2. Safety

GLP promotes laboratory safety for personell, avoiding unecessary risks and preventing accidents.

3. Quality control

GLP ensures that experiments made and products developed in a laboratory have the demanded quality.

4. Reliability of results

GLP promotes quality of results reporting, wich directly influences the reliability of results.

7 0
4 years ago
The balloon in the previous problem will burst if its volume reaches 400. L. Given the initial conditions specified in that prob
NARA [144]

This is an incomplete question, here is complete question.

A metrological balloon contains 250 L of He at 22 C and 740 mmHg.

The balloon in the previous problem will burst if its volume reaches 400 L. Given the initial conditions specified in that problem, at what temperature, in degrees Celsius, will the balloon burst if its pressure at that bursting point is 0.475 atm.

Answer : The final temperature will be, -44.4^oC

Explanation :

Combined gas law is the combination of Boyle's law, Charles's law and Gay-Lussac's law.

The combined gas equation is,

\frac{P_1V_1}{T_1}=\frac{P_2V_2}{T_2}

where,

P_1 = initial pressure of gas = 740 mmHg  = 0.974 atm

P_2 = final pressure of gas = 0.475 atm

V_1 = initial volume of gas = 250 L

V_2 = final volume of gas = 400 L

T_1 = initial temperature of gas = 22^oC=273+20=293K

T_2 = final temperature of gas = ?

Now put all the given values in the above equation, we get:

\frac{0.974atm\times 250L}{293K}=\frac{0.475atm\times 400L}{T_2}

T_2=228.6K=228.6-273=-44.4^oC

Thus, the final temperature will be, -44.4^oC

7 0
4 years ago
How many formula units are contained in 0.57 g Cao?
joja [24]
Then you will multiply the number of moles by 6.022×1023formula units/mol . To determine the molar mass of a compound, add the atomic weight on the periodic table in g/mol times each element's subscript. Since the formula unit CaO has no subscripts, they are understood to be 1
7 0
3 years ago
Name of th molecule <br> 1. CH3CH2CHClCHBrCH3<br> 2.C=C-CH3<br> CH3CH=CHCH2
Grace [21]

Answer:

1: 2-bromo-3-chloropentane

Explanation:

find longest carbon chain =5

place the Br and Cl on the carbon chain

follow naming rules I guess

4 0
3 years ago
Which of the following properties allows water molecules to stick to othe types of molecules?
inn [45]

Answer:

B.) Adhesion

Explanation:

A.) is incorrect. Viscosity is a measure of internal friction that affects the fluidity of a liquid.

B.) is correct. Adhesion is the ability of water to stick to other substances (which are not water).

C.) is incorrect. Surface tension is the tension created by the bonds of the surface particles.

D.) is incorrect. Density is a ratio that compares mass to volume.

5 0
2 years ago
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