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
Anastasy [175]
3 years ago
13

What is a centrifuge used for?

Chemistry
2 answers:
Romashka-Z-Leto [24]3 years ago
7 0
For spinning liquid samples at high speeds, usually for suspensions or mixtures.
<span />
tatiyna3 years ago
5 0
<span>It is used for the separation of fluids, gas or liquid, based on density.

Hope this helps!</span>
You might be interested in
What is the half-life of an isotope that decays to 6.25% of its original activity in 18.9 hours?
inessss [21]
Radioactive material obeys 1st order decay kinetics,
For 1st order reaction, we have 
k = \frac{2.303}{t}Xlog \frac{\text{initial conc.}}{\text{final conc.}}
where, k = rate constant of reaction

Given: Initial conc. 100, Final conc. = 6.25, t = 18.9 hours

∴ k = \frac{2.303}{18.9} X log \frac{100}{6.25} = 0.1467 hours^(-1)

Now, for 1st order reactions: half life = \frac{0.693}{k} =  \frac{0.693}{0.1467} = 4.723 hours.


8 0
3 years ago
In a chemical equation, the arrow points towards what?
stepan [7]
The arrow doesn’t “point” to anything really, it means that the reactants form (or change) into the products.
3 0
3 years ago
Read 2 more answers
Someone help me with question pls
gizmo_the_mogwai [7]

Explanation:

the conductors are the three u have checked

8 0
2 years ago
If we wish to prepare 250. mL of 0.200 M BaCl2 solution, how much solid BaCl2 is needed?
n200080 [17]

Answer:

10.4g

Explanation are in the Picture

8 0
3 years ago
A 34.0 g piece of metal is heated to 92.0°C then placed in a beaker of water containing 22.0 g of water at 19.0°C. The temperatu
lapo4ka [179]

Answer:

0.1988 J/g°C

Explanation:

-Qmetal = Qwater

Q = mc∆T

Where;

Q = amount of heat

m = mass of substance

c = specific heat of substance

∆T = change in temperature

Hence;

-{mc∆T} of metal = {mc∆T} of water

From the information provided in this question, For water; m= 22.0g, ∆T = (24°C-19°C), c = 4.18J/g°C.

For metal; m= 34.0g, ∆T = (24°C-92°C), c = ?

Note that, the final temperature of water and the metal = 24°C

-{34 × c × (24°C-92°C)} = 22 × 4.18 × (24°C-19°C)

-{34 × c × (-68°C)} = 459.8

-{34 × c × -68} = 459.8

-{-2312c} = 459.8

+2312c = 459.8

c = 459.8/2312

c = 0.1988

The specific heat capacity of the metal is 0.1988 J/g°C

6 0
2 years ago
Other questions:
  • (01.01 MC)
    12·2 answers
  • Which of the following is a balanced chemical equation? A, H2O2 → H2O + O2
    13·1 answer
  • An aqueous solution of 1.29 M ethanol, CH3CH2OH, has a density of 0.988 g/mL. The percent by mass of CH3CH2OH in the solution is
    7·1 answer
  • Carl walked 12m north then turned around and walked back 4m south. What was his
    8·1 answer
  • Why do you think we have different seasons?
    15·1 answer
  • When the following equation is balanced, what is the coefficient for NaNO3?
    13·1 answer
  • How I do this? and I need help like now!
    15·1 answer
  • Please match word and definition &lt; electrons and electric current move easily 1. electric current &lt; Prevents electrons fro
    13·1 answer
  • What property can be used to determine if a sample is a pure substance or a mixture?
    11·1 answer
  • _________ is the writer of: ‘Freedom Withdrawal’...​
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!