1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Masteriza [31]
3 years ago
11

Which of these conjugate acid-base pairs will not function as a buffer?A) HNO3 and NO3^-B) HCO3^- and CO3^2-C) C2H5COOH and C2H5

COO^-
Chemistry
1 answer:
marin [14]3 years ago
5 0
<h3><u>Answer;</u></h3>

A) HNO3 and NO3^-

<h3><u>Explanation;</u></h3>
  • <em><u>HNO3 is a strong  acid and NO3 is its conjugate base, meaning it will not have any tendency to withdraw H+ from solution.</u></em>
  • Buffers are often prepared by mixing a weak acid or base with a salt of that weak acid or base.
  • The buffers resist changes in pH since they contain acids to neutralize OH- and a base to neutralize H+. Acid and base can not consume each other in neutralization reaction.
You might be interested in
Draw structures for all constitutional isomers with the molecular
Andre45 [30]
The answer is B
APEX
4 0
3 years ago
The reactants in the above reaction are hydrogen and nitrogen. The product is ammonia. What is a balanced equation for that
Elanso [62]
N2 + 3H2 (arrow) 2NH3
4 0
2 years ago
Propane has a normal boiling point of -42.04 °C and a heat of vaporization of 24.54 kJ/mole. What is the vapor pressure of propa
Mademuasel [1]

Answer : The vapor pressure of propane at 25.0^oC is 17.73 atm.

Explanation :

The Clausius- Clapeyron equation is :

\ln (\frac{P_2}{P_1})=\frac{\Delta H_{vap}}{R}\times (\frac{1}{T_1}-\frac{1}{T_2})

where,

P_1 = vapor pressure of propane at 25.0^oC = ?

P_2 = vapor pressure of propane at normal boiling point = 1 atm

T_1 = temperature of propane = 25.0^oC=273+25.0=298.0K

T_2 = normal boiling point of propane = -42.04^oC=230.96K

\Delta H_{vap} = heat of vaporization = 24.54 kJ/mole = 24540 J/mole

R = universal constant = 8.314 J/K.mole

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

\ln (\frac{1atm}{P_1})=\frac{24540J/mole}{8.314J/K.mole}\times (\frac{1}{298.0K}-\frac{1}{230.96K})

P_1=17.73atm

Hence, the vapor pressure of propane at 25.0^oC is 17.73 atm.

3 0
3 years ago
An atom has atomic number 5 and mass number 11. How many protons does the atom have? 5 6 10 11
spin [16.1K]

Answer:

6 neutrons. The mass number is the number of protons and neutrons in the nucleus of an atom. The atomic number shows how many protons. Subract the atomic number from the mass number to find the number of neutrons.

Explanation:

6 0
3 years ago
Read 2 more answers
2. What is the molarity of a HCl solution containing 1.2 grams of hydrochloric acid in 0.025 L of solution?
alisha [4.7K]

Answer:

1.3M

Explanation:

Convert from grams to moles:

molar mass of HCl = 1.01g(molar mass of H) + 35.45g(molar mass of Cl) = 36.46g HCl

1.2g HCl (1mol HCl/36.46g HCl)

= .0329 mol HCl

Molarity = mol/L (important formula for concentration)

Plug your values in:

Molarity = .0329mol/.025L

1.317M - but you used two significant figures in the question, so:

1.3M

3 0
3 years ago
Other questions:
  • In an experiment, an unknown gas effuses at one-half the speed of oxygen gas, which has a molar mass of 32 g/mol. which might be
    5·1 answer
  • The definition of chemical symbol
    11·2 answers
  • What happens to the nutrients absorbed in the<br> small intestine?
    13·1 answer
  • The density of aluminium is 2.70 g/cm3. Find the mass in grams of a bar of aluminum measuring 2.03 cm by 3.0056 cm by 13.4 cm.
    11·1 answer
  • I was too afraid we wouldn't be let in if l corrected the man's pronunciation, but I said our name to myself, opening my mouth w
    5·2 answers
  • Helppp nowwww plsss
    13·1 answer
  • Draw the Lewis structure for the polyatomic hydronium H3O cation. Be sure to include all resonance structures that
    6·1 answer
  • What are community level basic proffesion under health sector?​
    9·1 answer
  • Identify the missing information for each atom or ion. Note that the atoms and ions are not necessarily neutral.
    15·1 answer
  • Helppppppppppppppppppppppppppppp
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!