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
USPshnik [31]
3 years ago
14

What is the density of a liquid if the volume is 25 mL and the mass is 20.0 g?

Chemistry
1 answer:
LenKa [72]3 years ago
3 0

Answers:  

                   Density = 0.8 g/mol.        

Given data:

                   v = 25 ml

                    m = 20 g

                    δ = ?

Solution:

               Formula for calculating density is given as,

                Density = Mass / Volume    

                 putting values  

                 Density = 20.0 g / 25 ml

                  Density = 0.8 g/mol.

You might be interested in
The half-life of radioactive substance is 2.5 minutes. what fraction of the origional radioactive remains after 10 mins
saul85 [17]
The answer is 1/16.

Half-life is the time required for the amount of a sample to half its value.
To calculate this, we will use the following formulas:
1. (1/2)^{n} = x,
where:
<span>n - a number of half-lives
</span>x - a remained fraction of a sample

2. t_{1/2} = \frac{t}{n}
where:
<span>t_{1/2} - half-life
</span>t - <span>total time elapsed
</span><span>n - a number of half-lives
</span>
So, we know:
t = 10 min
<span>t_{1/2} = 2.5 min

We need:
n = ?
x = ?
</span>
We could first use the second equation to calculate n:
<span>If:
t_{1/2} = \frac{t}{n},
</span>Then: 
n = \frac{t}{ t_{1/2} }
⇒ n = \frac{10 min}{2.5 min}
⇒ n=4<span>
</span>
Now we can use the first equation to calculate the remained fraction of the sample.
<span>(1/2)^{n} = x
</span>⇒ x=(1/2)^4
<span>⇒x= \frac{1}{16}</span>
3 0
3 years ago
A prototype is usually different from the final product
Assoli18 [71]
True. The prototype is usually the "rough draft" the figure out what needs fixed or upgraded before they make the final product "final draft". Hope that helped!
7 0
3 years ago
Which best defines partial pressure in a mixture of gases?
VladimirAG [237]

Answer:

Pressure that is exerted by one gas as if it occupied a container by itself.

7 0
3 years ago
Read 2 more answers
The form of energy that holds atomic nuclei together is called _____. molecular energy chemical energy nuclear energy electromag
expeople1 [14]
The answer is nuclear energy.
7 0
3 years ago
Read 2 more answers
Which of the following elements would you expect to be extremely explosive in the presence of water?
Natali5045456 [20]
The answer is a. Sodium
6 0
3 years ago
Read 2 more answers
Other questions:
  • Which stage of the scientific process enables a scientist to check the work of other
    10·1 answer
  • What was thompson working with when he discovered the cathode rays
    8·2 answers
  • RIGHT ANWSER GETS MARKED BRAINLIEST
    11·2 answers
  • What is the angle between the carbon-sulfur bonds in the carbon disulfide ( cs2 ) molecule?
    9·1 answer
  • Determining the molecular formula of a hydrocarbon with a relative molecular mass of 54​
    15·1 answer
  • Can someone help? Ill give brainliest!
    5·1 answer
  • Explain what is meant by the phrase mass is conserved.’
    15·2 answers
  • Plz help guys ASAP! <br> Thanks in advance
    13·1 answer
  • Describe the trend for atomic radius from left to right across a period. Use atomic
    14·1 answer
  • Figure 2 shows what happens to the electrons in the outer shells when a sodium atom reacts with a fluorine atom.
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!