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
alexandr402 [8]
2 years ago
8

Which of the following solutions represents a good buffer system? a solution that is 0.10 mol L-1 NaOH and 0.10 mol L-1 KOH a so

lution that is 0.10 mol L-1 HCl and 0.10 mol L-1 NH4+ a solution that is 0.10 mol L-1 HF and 0.10 mol L-1 CH3COONa a solution that is 0.10 mol L-1 HCl and 0.10 mol L-1 KCl a solution that is 0.10 mol L-1 CH3COOH and 0.10 mol L-1 CH3COOLi
Chemistry
1 answer:
Goshia [24]2 years ago
4 0

Answer:

chu papi

Explanation:

You might be interested in
Consider an electron with charge −e−e and mass mmm orbiting in a circle around a hydrogen nucleus (a single proton) with cha
PtichkaEL [24]

Answer:

Explanation:

The net force on electron is electrostatic force between electron and proton in the nucleus .

Fc = \frac{1}{4\pi\epsilon} \times \frac{e\times e}{r^2}

This provides the centripetal force for the circular path of electron around the nucleus .

Centripetal force required = \frac{m\times v^2}{r}

So

\frac{m\times v^2}{r}=\frac{1}{4\pi\epsilon} \times \frac{e\times e}{r^2}

v^2=\frac{e^2}{4\pi \epsilon m r}

v=(\frac{e^2}{4\pi \epsilon m r})^{\frac{1}{2} }

5 0
3 years ago
4. I'm the "brain" of the cell or so they say. I regulate activities from day to day...​
Luba_88 [7]

Answer:

nucleus

Explanation:

it holds information needed to regulate most of the cell functions

6 0
4 years ago
We can tell when a chemical reaction occurs by looking
gregori [183]
10. ¿Con qué soñaba la autora cuando era niña? ¿Qué espera hoy?
11. ¿Cómo describe ella su identidad? ¿Cómo se define?
12. ¿Por qué escribe Esmeralda Santiago? ¿Qué quiere expresar a sus lectores?
8 0
3 years ago
1. What is an isomer? How many possible isomers of hexane are there? What are the structural differences between these isomers?
UNO [17]
When two compounds have same molecular formula but different structural formula, they are said to be isomers of each other and this phenomenon is called as isomerism. 

Hexane has six isomers.

The isomers of hexane have a difference in their structure due to parent chain length (chain isomerism). They are also differentiated on the basis of straight chain as in n-hexane and branched chain as in remaining five. Structures along with names are shown below.

8 0
3 years ago
Please help me with this chem question!!
schepotkina [342]

Answer:

caca123

Explanation:

UM

6 0
3 years ago
Other questions:
  • Which of the following did Antoine Lavoisier correctly characterize as an element?
    12·2 answers
  • A compound containing the elements C, H, N, & O is analyzed. When a 1.2359 g sample is burned in excess oxygen, 2.241 g of C
    12·1 answer
  • A naturally occurring sample of an element contains only two isotopes. The first isotope has a mass of 68.9255 amu and a natural
    12·1 answer
  • What does state of matter mean
    12·1 answer
  • At the base of a frictionless icy hill that rises at 25.0∘ above the horizontal, a toboggan has a speed of 11.5 m/s toward the h
    9·1 answer
  • A level chem naming isomers​
    13·1 answer
  • Calculate δg∘rxn and e∘cell for a redox reaction with n = 3 that has an equilibrium constant of k = 4.4×10−2. you may want to re
    6·1 answer
  • It is 1,518 miles from West Lafayette to Provo, UT (where Mrs. Fernandez started in college). If I drive in that direction 692 m
    6·1 answer
  • The formation of iodine is described by the following chemical equation:
    10·1 answer
  • Thermal pollution is when the temperature of a body of water is increased due to warmer water being added.
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!