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
PilotLPTM [1.2K]
3 years ago
6

You are given an unknown type of clothing dye. how could you use the procedures in this lab to see if this dye is a mixture?

Chemistry
2 answers:
Arte-miy333 [17]3 years ago
8 0
One separation technique to be used is the paper chromatography. This works by separating the components of the mixture through the difference of their concentrations. There is a stationary phase and the mobile phase, which flows through the stationary phase. The components travel at different rates and is usually signified by the colors. If more than one color would appear, that means that the dye is a mixture.
Ket [755]3 years ago
8 0

Use the paper chromatography method and see how each color ink separates in different solvents.

You might be interested in
With the help of balanced chemical equation explain what happens when:(1)Zinc is put in dilute hydrochloric acid (2)Zinc is put
UkoKoshka [18]
Find the attached document.

6 0
2 years ago
Read 2 more answers
Why is a changing ocean temperature of only one or 2 degrees so concerning? Please help!!!!
Svetllana [295]
Because it throws the earth off balance and if it does it often enough then it will soon add up.

6 0
3 years ago
Read 2 more answers
Use one of your experimentally determined values of k, the activation energy you determined, and the Arrhenius equation to calcu
stealth61 [152]

Answer:

Explanation:

Use one of your experimentally determined values of k, the activation energy you determined, and the Arrhenius equation to calculate the value of the rate constant at 25 °C. Alternatively, you can simply extrapolate the straight line plot of ln(k) vs. 1/T in your notebook to 1/298 , read off the value of ln(k), and determine the value of k. Please put your answer in scientific notation. slope=-12070, Ea=100kJ/mol, k= 0.000717(45C), 0.00284(55C), 0.00492(65C), 0.0165(75C), 0.0396(85C)

Explanation;

According to Arrhenius equation:

i.e. ln(k2/k1) = -Ea/R (1/T2 - 1/T1)

Where, k1 = 0.000717, T1 = 45 oC = (45+273) K = 318 K

T2 = 25 oC = (25 + 273) K = 298 K

i.e. ln(k2/0.000717) = -12070 (1/298 - 1/318)

i.e. ln(k2/0.000717) = -2.54738

i.e. k2/0.000717 = e^{-2.54738}

= 0.078286

Therefore, the required constant (k2) = 0.078286 * 0.000717 = 5.61*10^-^5

6 0
3 years ago
Which reaction below represents a balanced, double replacement chemical reaction?
Mariulka [41]
Thank you for posting your question here at brainly. I hope the answer will help you. Feel free to ask more questions.

I think the reaction that represents a balanced, double replacement chemical reaction is B which is <span>Rb2O + Cu(C2H3O2)2 → 2RbC2H3O2 + CuO </span>
4 0
3 years ago
Hot glass looks the same as cold glass?
Finger [1]

Answer:

This is true. A hot glass does look the same as a cold glass. Glass won't change its look if it's below 648 degrees Celsius.

7 0
3 years ago
Read 2 more answers
Other questions:
  • How many atoms of chromium are in 0.86 mol of potassium chromate (K2CrO4)?
    15·1 answer
  • What is the total amount of heat required to completely melt 347 grams of ice at t's melting point
    15·2 answers
  • Which of the following is a consequence of humans using fossil fuels
    10·1 answer
  • Tellurium is a silvery-white, brittle element. Its electrical conductivity varies, but I’m creases slightly with exposure to sun
    9·2 answers
  • How many atoms are in two water molecules? pls and thxxxxxxxxx
    9·1 answer
  • 67.4 L of sulfur dioxide (SO2) gas at 0.0C and at 1 atm of pressure is equivalent aren’t to how many moles?
    7·1 answer
  • How many milliliters (mL) are in 0.847 liters (L)
    8·1 answer
  • 5.82 760.<br> Х<br> 425.976<br> answer should have<br> sig.figs.<br> calculated answer:
    10·1 answer
  • Which is one characteristic of deep ocean currents someone pls help
    6·2 answers
  • QUESTION 4
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!