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
ella [17]
2 years ago
15

An HCl solution has a concentration of 3.26 x 10-2 M. What is the pH of this solution?

Chemistry
2 answers:
Dimas [21]2 years ago
8 0

<u>Answer:</u> The pH of the solution is 1.49

<u>Explanation:</u>

pH is defined as the negative logarithm of hydrogen ion concentration present in a solution.

To calculate the pH of the reaction, we use the equation:

pH=-\log[H^+]

where,

[H^+]=3.26\times 10^{-2}M

Putting values in above equation, we get:

pH=-\log(3.26\times 10^{-2})\\\\pH=1.49

Hence, the pH of the solution is 1.49

xxMikexx [17]2 years ago
6 0
- log (3.26x10^-2) = 1.49 which is B
You might be interested in
The reaction of 15 moles carbon with 30 moles O2 will
chubhunter [2.5K]

Answer:

15 moles.

Explanation:

Hello,

In this case, the undergoing chemical reaction is:

C+O_2\rightarrow CO_2

Clearly, since carbon and oxygen are in a 1:1 molar ratio, 15 moles of carbon will completely react with 15 moles of oxygen, therefore 15 moles of oxygen remain as leftovers. In such a way, since carbon and carbon dioxide are also in a 1:1 molar ratio, the theoretical yield of carbon dioxide is 15 moles based on the stoichiometry:

n_{CO_2}=15molC*\frac{1molCO_2}{1molC} \\\\n_{CO_2}=15molCO_2

Best regards.

8 0
3 years ago
The specific heat of gold is 0.126 J/gºC. How much energy is released
Schach [20]

Explanation:

Specific heat capacity of gold (S)

= 0.126 J /kg°C

mass (m) = 350 g = 0.35 kg

difference in temperature (dt)

= 88.5°C - 24.6°C

= 63.9° C

Now

Energy released (Q)

= m*s*dt

= 0.35 * 0.126 * 63.9

= 2.81799 Joule

Hope it will help :)

3 0
2 years ago
What type of energy is caused by positive and negative charges in matter
levacccp [35]

Answer:

Static electricity is the result of an imbalance between negative and positive charges in an object. These charges can build up on the surface of an object until they find a way to be released or discharged.

Explanation:

7 0
3 years ago
Read 2 more answers
The carbon-oxygen bond in CO has a higher bond dissociation enthalpy than a carbon-oxygen bond in CO2. Which is the best explana
kkurt [141]

Answer:

CO HAS A TRIPLE BOND WHILE C-O BOND IN CO2 IS A DOUBLE BOND

CO HAS A LONE PAIR ON CARBON WHILE CO2 DOES NOT

Explanation:

Bond dissociation bond enthalpy or energy is the energy needed to break 1 mole of a divalent molecule into separate atoms mostly in the gaseous state.

The carbon and oxygen in carbon monoxide form a triple bond as carbon monoxide has 10 electrons in their outermost shell which results into six shared electrons in 3 bonding orbitals as against the double bond formed by other carbon compounds. Four electrons come from oxygen and the remaining two from carbon and due to this, two electrons from oxygen will occupy one orbital and this forms a dative bond. Also because of the triple bond, carbon monoxide is often regarded as a more stable compound than carbon dioxide with a double bond. This gives it its higher bond dissociation enthalpy value and more energy is needed to break it into its separate atoms. This is in conjunction with a larger bond length similar to the bong length in a triple bond. This makes it more stronger than the bond dissociation enthalpy of carbon dioxide having a double bond.

7 0
3 years ago
What is the pH of a 0.65 M solution of pyridine, C5H5N?
Arada [10]

Hey there!

The pH of a weak base (in this case, pyridine is a weak base) is calculated by using the weak base equation, and then solving it.

C5H5N; Kb= 1.7 x 10⁻⁹

pH = -log [H⁺]

we can also say that pH = 14 + log [OH⁻]

Plugging into the weak base equation, we know that Kb = [OH⁻][BH⁺] / [B]

This can be solved using an ice chart, which will then simplify to :

Kb = [x][x] / [0.50-x]

We can assume that x is very small in comparison to the 0.5 , so we consider it zero.


Then plug in and solve for x.  1.79 *10-9 = x² / 0.5

x = 2.992 * 10⁻⁵

ince X is equal to the [OH⁻] concentration, we can plug it into the second pH equation, and get the pH!

pH = 14+ log 2.99 * 10⁻⁵

pH = 9.48

Hope that helps!

3 0
2 years ago
Other questions:
  • Why is regulation of the cell cycle important?
    12·1 answer
  • Geometry and polarity of SnCl2
    6·1 answer
  • A substance undergoes a change. Which of the following indicates that the change
    12·1 answer
  • What is a neutron and what charge does it have
    11·2 answers
  • For each of the following unbalanced chemical equations suppose that exactly 50.0 g of each reactant is taken. Determine which r
    13·1 answer
  • One city is located north of the equator and experiences average rainfall and warm temperatures. Another city is located exactly
    12·1 answer
  • Nitrosyl fluoride has the chemical formula NOF. Nitrogen has five valence electrons, oxygen has six, and fluorine has seven. Com
    10·1 answer
  • What is 80% as a ratio
    13·1 answer
  • Ill give brainlist pls help me and don't guess I want full explanation please.
    5·1 answer
  • Which will most likely result if the levels of dissolved oxygen decrease in a body of water?
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!