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
Aliun [14]
2 years ago
11

Compound X has a Rf value of 0.25. How far will compound X have traveled from the origin when the eluent (solvent) front has tra

veled 40 mm
Chemistry
1 answer:
antoniya [11.8K]2 years ago
6 0

Answer:

10mm

Explanation:

Rf value = 0.25 = 25% of total distance traveled by eluant.

0.25*40mm =10mm

You might be interested in
When the fish-tank water has a pH of 8.0, the hydronium ion concentration is 1.0 × 10-8 mole per liter. What is the hydronium io
Oduvanchick [21]
You must know and use the formula for pH.


pH = - log [H3O+], where [H3O+] is the molar concentration of hydronium ion.


So, when pH is 8.0 => 8.0 = - log [H3O+] and you can use antilogarithm (the inverse function of logarithm) to find [H3O+], in this way:


[H3O+] = 10^-8 = 1 * 10 ^-8 M


When, pH = 7.0 =>

7.0 = - log [H3O+] => [H3O+] = 1 * 10^ -7 M


Answer: 1*10^-7 mole / liter
5 0
3 years ago
12. What did Darwin's ideas come to be known as? What is evolution?​
fomenos
Evolution of theory. Evolution is the process of how the people evolve
3 0
2 years ago
Which of the following is an example of poetential energy changing into kinetic energy ?
allsm [11]

B. A fruit falling from a tree.

4 0
3 years ago
Read 2 more answers
Help plisssssssssss I need helppp
Makovka662 [10]

Answer:

Explanation:

you would have to look more around the page, for example look at some ways that you can right down.

6 0
3 years ago
What is the mass of an electron?
Lesechka [4]

Answer:

the answer is 0 amu I hope it helps

6 0
3 years ago
Other questions:
  • Which of the following would you predict to have a positive value for º?
    14·1 answer
  • A sample of H2SO4 contains 2.02 g of hydrogen, 32.07 g of sulfur, and 64.00 g of oxygen. How many grams of sulfur and grams of o
    13·1 answer
  • An object with a mass of 7.1 g raises the level of water in a graduated cylinder from 25.1 mL to 32.4 mL. What is the density of
    9·1 answer
  • Which of these is an oxidation half-reaction?
    11·1 answer
  • The Earth, the Sun, and the rest of the solar system are almost unimaginably old when viewed on a human time scale. While modern
    9·2 answers
  • Iodine (I2) and (Br2) react in a closed 2.0L container at 150°C to produce iodine monobromide (IBr), according to the following
    14·1 answer
  • which is a chemical change, water boiling, wood burning,glass breaking, ice melting, or molding iron ?
    5·2 answers
  • Help fast! i rlly need help pls :(
    13·2 answers
  • ASAP
    5·1 answer
  • Use the pie section above to answer this question.
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!