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
larisa86 [58]
3 years ago
9

What is the PH of a 1.3×(10)^-9 M HBr solution?

Chemistry
1 answer:
olga nikolaevna [1]3 years ago
7 0

pH solution = 8.89

<h3>Further explanation</h3>

Given

The concentration of HBr solution = 1.3 x 10⁻⁹ M

Required

the pH

Solution

HBr = strong acid

General formula for strong acid :

[H⁺]= a . M

a = amount of H⁺

M = molarity of solution

HBr⇒H⁺ + Br⁻⇒ amount of H⁺ = 1 so a=1

Input the value :

[H⁺] = 1 x  1.3 x 10⁻⁹

[H⁺] = 1.3 x 10⁻⁹

pH = - log [H⁺]

pH = 9 - log 1.3

pH = 8.89

You might be interested in
When work is done on an object, the amount of ________ it has changes.
arsen [322]
Hey there!

When work is done on an object, the amount of energy it has changes.

Hope this helps!

~Autumly
3 0
3 years ago
4.65 L of nitrogen at standard pressure is compressed into a 0.480 L container. What is the new pressure in kPa?
Semenov [28]
Assuming that nitrogen gas is ideal, we can use the equation PV = nRT to relate first conditions to the second condition. At constant temperature, pressure and volume are indirectly related as follows:

P = k / V

k is equal nRT

P1V1 = P2V2
P2 = 101.325 ( 4.65 ) / .480 = 981.586 kPa
6 0
3 years ago
A sample of gas has a volume of 2.36 L at a temperature of 53.00 °C. The gas sample is heated to a temperature of 139.00 °C (ass
Liono4ka [1.6K]

Answer:

The volume increases because the temperature increases and is 2.98L

Explanation:

Charles's law states that the volume of a gas is directely proportional to its temperature. That means if a gas is heated, its volume will increase and vice versa. The equation is:

V₁/T₁ = V₂/T₂

<em>Where V is volume and T is absolute temperature of 1, initial state, and 2, final state of the gas.</em>

In the problem, the gas is heated, from 53.00°C (53.00 + 273.15 = 326.15K) to 139.00°C (139.00 + 273.15 = 412.15K).

Replacing in the Charles's law equation:

2.36L / 326.15K= V₂/412.15K

<h3>2.98L = V₂</h3>

<em />

5 0
3 years ago
One of the products of a fermentation reaction is
Alex73 [517]
There are two types of fermentation aerobic and anaerobic. Aerobic are those that need oxygen to ferment while anaerobic are those who do not need oxygen. Products of fermentation are usually water, ethanol, lactic acid and carbon dioxide. Other products are acetone and butyric acid.
5 0
3 years ago
Why is protein classified as a polymer?
Anika [276]
Its made up of a long chain of monomers so proteins are polymers made of  amino acids I hope this helps! ^^;
3 0
3 years ago
Read 2 more answers
Other questions:
  • Which of the following are forms that chemical hazards can be in?
    12·1 answer
  • Calculate the percent by mass of carbon in CO2 (carbon dioxide).
    6·2 answers
  • What's a design constraint?
    10·1 answer
  • What is the effect on vapor pressure of a solution with particularly strong solute-solvent interactions? With particularly weak
    8·1 answer
  • When 10 grams of water completely evaporate into water vapor, the volume of the water vapor is greater than the volume of the or
    5·1 answer
  • 34
    12·1 answer
  • When 50.0 mL of 1.000 M HCl is reacted with 50.0 mL of 1.000 M NH4OH, the solution's temperature increases 8.65 °C. Calculate qs
    12·1 answer
  • 2. What states of matter exist within the human body? What state of matter do you think your body is mostly made up of? Why? (4
    6·1 answer
  • Sakura tested the pH of several solutions. Which substances are acidic? Check all that apply. Cola-flavored soda: 2. 6 cranberry
    14·1 answer
  • HELP PLS WILL GIVE BRAINLIEST AND THANKS
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!