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
Law Incorporation [45]
3 years ago
7

What is the ph of a buffer prepared by adding 1.00 l of 1.0 m hcℓ to 750 ml of 1.5 m nahcoo? ka = 1.7 x 10-4?

Chemistry
1 answer:
alexandr1967 [171]3 years ago
5 0
Ph = 2.837 ( solution is attached ) 

You might be interested in
Someone please help me sort these out for either if they are Heterogenous, solution, suspension, or colloid. Tuna casserole, gre
Sphinxa [80]
Heterogeneous-a mixture of two or more things
solution-a substance that dissolves
suspension-mixture where solid particles do not dissolve
colloid-does not settle and cannot be seperated

Heterogeneous
- tuna casserole
-chocolate chip cookies
-gelatin dessert
-green salad
Solution
-oil (?) depends 
Suspension
-vinegar salad dressing
-oil (?) it could go in either catagory
Colloid
-vinegar salad dressing
-oil (?)

7 0
3 years ago
What happens to the light ray when it hits the boundary between water and glass
torisob [31]

Answer: If the light ray hits the boundary at an angle which is not perpendicular to or parallel to the surface, then it will change direction and appear to `bend'

Hope This Helps You! :D

6 0
3 years ago
What is the pressure, in atmospheres, of a 0.108-mol sample of helium gas at a temperature of 20.0°C if its volume is 0.505 L?
SpyIntel [72]

Answer:

P = 5.14ATM

Explanation:

Number of moles = 0.108moles

Temperature (T) = 20°C = 20 + 273.15 = 293.15K

Volume V = 0.505L.

Pressure (P) = ?

R = 0.082J/mol.K

From ideal gas equation,

PV = nRT

P = nRT / V

P = (0.108 * 0.082 * 293.15) / 0.505

P = 2.596 / 0.505

P = 5.14ATM

The pressure of the gas is 5.14ATM

5 0
3 years ago
Identify the intermolecular forces present in each of these substances ch4
djverab [1.8K]
There are four type of intermolecular forces: ionic, dipole-dipole, hydrogen bonds and London disperssion forces.

CH4 have  no ions, so there are  not ionic forces.

CH4 is a symetrical molecule, so there cannot be a net dipole in the molecule, so there is not dipole-dipole interaction.

Hydrogen bonding is only possbile when H is bonded to N, O or F, beacuse they are the atoms that considerable higher electgronegativy than hydrogen.

So, the only intermolecular force present in CH4 molecules is London disperssion forces, which is a force present in any molecule and is the weakiest one. That explains the low melting and boiling points of CH4. 
7 0
3 years ago
Read 2 more answers
What is the meaning of Meniscus?
jek_recluse [69]
It is the the curved upper surface of a liquid in a tube.
4 0
3 years ago
Read 2 more answers
Other questions:
  • What function does residual CO2 serve
    7·1 answer
  • How much heat is evolved in converting 1.00 mol of steam at 140.0 ∘c to ice at -55.0 ∘c? the heat capacity of steam is 2.01 j/(g
    10·1 answer
  • 3. Students in a science class in Marfa, Texas, made a poster with a diagram to represent a seasonal change in the Northern Hemi
    14·1 answer
  • An object has a mass of 2800g and a volume of 3cm3. What is its density?<br>​
    14·1 answer
  • Which of these equations is balanced?
    9·2 answers
  • How many orbitals are contained in the third main energy level and in the fifth energy level
    11·1 answer
  • What advantage and disadvantage dose a light microscope have compared with an electron microscope
    15·1 answer
  • Which is an unreliable source? HURRY
    9·2 answers
  • Which element is classified as a metal?
    10·2 answers
  • In his explanation of the threshold frequency in the photoelectric effect, Einstein reasoned that the absorbed photon must have
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!