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
Daniel [21]
3 years ago
13

Find the pH of 2.1 x 10-3 [HCI]

Chemistry
1 answer:
erik [133]3 years ago
7 0

Answer: pH = 2.68

Explanation: pH = - log[H3O^+] .

 HCl reacts with water : HCl + H2O ->  Cl^- + H3O^+

So [H3O^+] = c(HCl) = 0.0021 M

pH = - log(0.0021) = 2.68

 

You might be interested in
When a soda can is dropped, it should not be immediately opened. Why?
umka2103 [35]
When soda companies add carbon dioxide gas to a soda mixture, the water is very cold so it can hold a lot of gas. They also use pressure to put more gas in the water than it could normally hold at that temperature. But when a soda can warms up a bit or when the can is shaken, that extra gas is really ready to come out. So when you open up the can and release the pressure, splooosh!
6 0
3 years ago
Read 2 more answers
If the bucket were left outside on a hot day but brought inside before any evaporation occurred, how would the mass be affected?
dangina [55]
It wouldnt because nothing changed
5 0
3 years ago
Read 2 more answers
Why are Li Na and k Placed in the same group of the periodic table?<br><br>​
Rudiy27

Answer:

Their valence electrons/properties

Explanation:

Elements in the same group of the periodic table have the same amount of valence electrons, which determines how they bond with other elements in other groups. This also determines their properties such as their reactivity. Since Li, Na, and K are in the same group, they must have similar properties and the same amount of electrons in their outermost shell.

5 0
3 years ago
what would happen to the volume of 10L carbon dioxide, if the pressure is doubled and temperature is constant?​
lara [203]

Answer:

The volume will goes to decrease.

Explanation:

The given problem will be solved through the Boyle's law,

"The volume of given amount of gas is inversely proportional to its pressure by keeping the temperature and number of moles constant"

Mathematical expression:

P₁V₁ = P₂V₂

P₁ = Initial pressure

V₁ = initial volume

P₂ = final pressure

V₂ = final volume  

when pressure is going to increase the volume will goes to decrease and vice versa.

Consider the initial volume is 10 L at initial pressure of 15 atm when pressure is increased to 30 atm the volume will be,

Now we will put the values in formula,

P₁V₁ = P₂V₂

15 atm × 10 L = 30  atm × V₂

V₂ = 150 atm. L/ 30 atm

V₂ = 5 L

5 0
3 years ago
Explain reasons why <br>helium is used to fill balloon instead of hydrogen having a lighter weight​
Elis [28]

Answer:

Explanation: hydrogen is a combustible gas. It easily explodes and can cause skin burns

6 0
3 years ago
Other questions:
  • What is the difference between an autosome and a sex chromosome
    12·1 answer
  • Aluminium does not corrode in a normal atmosphere because: a) Aluminum is unreactive with oxygen b) The reaction with oxygen has
    8·1 answer
  • If you wanted to change the polarity of hydrogen bromide (HBr) by substituting
    13·1 answer
  • Which of the following statements is not a description of asteroids?
    5·2 answers
  • How many grams of lead(II) sulfate (303 g/mol) are needed to react with sodium chromate (162 g/mol) in order to produce 0.162 kg
    6·1 answer
  • How does the chemical reactivity of halogens compare with that of the noble gas family
    5·1 answer
  • What is the definition of erosion ​
    9·2 answers
  • Can somebody please help grades are due at the end of the week please please
    7·1 answer
  • When Magnesium and Oxygen react 204 g of MgO is actually produced. The calculated theoretical yield is 216 g. What is the percen
    6·1 answer
  • 100 POINTS PLEASE HELP
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!