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
Doss [256]
3 years ago
14

Calculate the [H+]

Chemistry
1 answer:
ELEN [110]3 years ago
5 0

[H⁺]=6.696 x 10⁻⁵

pH = 4.174

<h3> Further explanation </h3>

Given

The concentration of 0.000295 M (2.95 x 10⁻⁴ M) butanoic acid solution

Required

the [H+]  and pH

Solution

Butanoic acid is the carboxylic acid group. Carboxylic acids are weak acids

For weak acid :

\tt [H^+]=\sqrt{Ka.M}

Input the value :

[H⁺]=√1.52 x 10⁻⁵ x 2.95 x 10⁻⁴

[H⁺]=6.696 x 10⁻⁵

pH = - log [H⁺]

pH = - log 6.696 x 10⁻⁵

pH = 5 - log 6.696

pH = 4.174

You might be interested in
At 400 K, the equilibrium constant for the reaction Br2 (g) + Cl2 (g) ↔ 2BrCl (g) is Kp = 7.0. A closed vessel at 400 K is charg
xz_007 [3.2K]

Answer:

(a) The equilibrium partial pressure of BrCl (g) will be greater than 2.00 atm.

Explanation:

Q is the coefficient of the reaction and is calculated the same of the way of the equilibrium constant, but using the concentrations or partial pressures in any moment of the reaction, so, for the reaction given:

Q = (pBrCl)²/(pBr₂*pCl₂)

Q = 2²/(1x1)

Q = 4

As Q < Kp, the reaction didn't reach the equilibrium, and the value must increase. As we can notice by the equation, Q is directly proportional to the partial pressure of BrCl, so it must increase, and be greater than 2.00 atm in the equilibrium.

The partial pressures of Br₂ and Cl₂ must decrease, so they will be smaller than 1.00 atm. And the total pressure must not change because of the stoichiometry of the reaction: there are 2 moles of the gas reactants for 2 moles of the gas products.

Because is a reversible reaction, it will not go to completion, it will reach an equilibrium, and as discussed above, the partial pressures will change.

5 0
3 years ago
What is the last step in the scientific method?
yawa3891 [41]

Answer:

D. Communication of results

8 0
3 years ago
Read 2 more answers
1.State the relationship between the following properties:
Diano4ka-milaya [45]

Answer:

bytbyufvguv vvg uggy yvgu vgu gyu7yng8ugng88yn

7 0
3 years ago
⚠️HELP⚠️
morpeh [17]

Answer:

The balanced equation is :

Zn(s) + H2SO4(aq) → ZnSO4(aq) + H2(g)

7 0
3 years ago
Which chemical agent is thought to be associated with "runner's high"?
Licemer1 [7]
Opioid's tend to show during runners high, so my guess would most likely be dopamine
6 0
3 years ago
Other questions:
  • Match the natural resources to their uses.<br> water<br> forests<br> wetlands<br> parks
    13·2 answers
  • What are the parts of the water system? Label the water wheel to show the matter and forms energy that flow through the system.
    13·1 answer
  • The volume of a pond being studied for the effects of acid rain is 35 kiloliters (kL). There are 1,000 liters (L) in 1 kL and 1
    7·1 answer
  • What mass of hydrogen contains the same number of atoms as 7.00 g of nitrogen
    11·1 answer
  • You need to decontaminate water cans previously used for nonpotable water. You calculate that five gallons of disinfecting solut
    6·1 answer
  • A balloon vendor at a street fair is using a tank of helium to fill her balloons. The tank has a volume of 124.0 L and a pressur
    14·1 answer
  • What is the difference between a strong electrolyte and a weak electrolyte
    12·1 answer
  • Cho 6,72 gam Fe tan hết trong dung dịch H2SO4 đặc nóng dư thu được V lít khí SO2. Giá trị của V là
    5·1 answer
  • Please help 15 points
    12·1 answer
  • Suppose you have a sample of table salt (NaCl) that has a mass of 100.0 grams. If
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!